/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-VariableLbe.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 11:15:05,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:15:05,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:15:05,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:15:05,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:15:05,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:15:05,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:15:05,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:15:05,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:15:05,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:15:05,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:15:05,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:15:05,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:15:05,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:15:05,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:15:05,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:15:05,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:15:05,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:15:05,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:15:05,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:15:05,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:15:05,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:15:05,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:15:05,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:15:05,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 11:15:05,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:15:05,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:15:05,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:15:05,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:15:05,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:15:05,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:15:05,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:15:05,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:15:05,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:15:05,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:15:05,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:15:05,603 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-VariableLbe.epf [2021-03-24 11:15:05,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:15:05,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:15:05,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:15:05,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:15:05,633 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:15:05,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:15:05,633 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:15:05,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:15:05,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:15:05,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:15:05,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:15:05,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:15:05,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:15:05,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:15:05,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:15:05,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:15:05,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:15:05,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:15:05,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:15:05,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:15:05,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:15:05,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:15:05,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:15:05,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:15:05,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:15:05,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:15:05,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:15:05,636 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:15:05,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:15:05,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:15:05,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:15:05,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:15:05,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:15:05,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:15:05,950 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:15:05,950 INFO L432 ainManager$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 11:15:06,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ffc2403/a0b32533b365484891e012d06b9ad51a/FLAG553e6d752 [2021-03-24 11:15:06,488 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:15:06,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-03-24 11:15:06,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ffc2403/a0b32533b365484891e012d06b9ad51a/FLAG553e6d752 [2021-03-24 11:15:06,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ffc2403/a0b32533b365484891e012d06b9ad51a [2021-03-24 11:15:06,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:15:06,764 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:15:06,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:15:06,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:15:06,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:15:06,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:15:06" (1/1) ... [2021-03-24 11:15:06,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8f4f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:06, skipping insertion in model container [2021-03-24 11:15:06,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:15:06" (1/1) ... [2021-03-24 11:15:06,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:15:06,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:15:07,280 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 11:15:07,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:15:07,301 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:15:07,332 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 11:15:07,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:15:07,508 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:15:07,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07 WrapperNode [2021-03-24 11:15:07,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:15:07,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:15:07,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:15:07,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:15:07,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:15:07,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:15:07,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:15:07,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:15:07,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (1/1) ... [2021-03-24 11:15:07,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:15:07,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:15:07,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:15:07,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:15:07,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (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 11:15:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:15:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 11:15:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 11:15:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-24 11:15:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:15:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:15:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-24 11:15:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-24 11:15:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:15:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:15:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:15:07,700 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 11:15:08,114 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:15:08,114 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-24 11:15:08,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:15:08 BoogieIcfgContainer [2021-03-24 11:15:08,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:15:08,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:15:08,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:15:08,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:15:08,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:15:06" (1/3) ... [2021-03-24 11:15:08,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240fcbe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:15:08, skipping insertion in model container [2021-03-24 11:15:08,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:15:07" (2/3) ... [2021-03-24 11:15:08,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240fcbe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:15:08, skipping insertion in model container [2021-03-24 11:15:08,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:15:08" (3/3) ... [2021-03-24 11:15:08,120 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-03-24 11:15:08,123 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:15:08,126 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-24 11:15:08,126 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:15:08,152 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,152 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,152 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,152 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,152 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,152 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,152 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,152 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,153 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,154 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,155 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,156 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,157 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,158 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,177 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,177 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,177 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,177 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,177 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,177 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,177 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,177 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,178 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,179 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,180 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,181 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,182 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,183 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,183 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,183 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,184 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,184 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,184 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,184 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,185 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,185 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,185 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,185 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,185 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,185 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,185 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,185 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,188 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,188 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,189 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:15:08,195 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-24 11:15:08,207 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-24 11:15:08,226 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:15:08,226 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:15:08,227 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:15:08,227 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:15:08,227 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:15:08,227 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:15:08,227 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:15:08,227 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:15:08,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 165 transitions, 352 flow [2021-03-24 11:15:08,314 INFO L129 PetriNetUnfolder]: 11/205 cut-off events. [2021-03-24 11:15:08,314 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 11:15:08,320 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 11:15:08,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 165 transitions, 352 flow [2021-03-24 11:15:08,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 153 transitions, 324 flow [2021-03-24 11:15:08,326 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:15:08,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 153 transitions, 324 flow [2021-03-24 11:15:08,336 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 153 transitions, 324 flow [2021-03-24 11:15:08,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 324 flow [2021-03-24 11:15:08,381 INFO L129 PetriNetUnfolder]: 8/186 cut-off events. [2021-03-24 11:15:08,381 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 11:15:08,381 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 11:15:08,384 INFO L142 LiptonReduction]: Number of co-enabled transitions 2492 [2021-03-24 11:15:10,682 INFO L154 LiptonReduction]: Checked pairs total: 3461 [2021-03-24 11:15:10,682 INFO L156 LiptonReduction]: Total number of compositions: 113 [2021-03-24 11:15:10,684 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2359 [2021-03-24 11:15:10,693 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-24 11:15:10,693 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:15:10,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:10,693 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:15:10,694 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 11:15:10,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:10,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1316921901, now seen corresponding path program 1 times [2021-03-24 11:15:10,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:10,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741591999] [2021-03-24 11:15:10,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:11,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:11,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:15:11,012 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 11:15:11,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741591999] [2021-03-24 11:15:11,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:11,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:15:11,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836043222] [2021-03-24 11:15:11,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:15:11,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:11,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:15:11,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:15:11,030 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 278 [2021-03-24 11:15:11,035 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 11:15:11,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:11,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 278 [2021-03-24 11:15:11,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:11,136 INFO L129 PetriNetUnfolder]: 170/401 cut-off events. [2021-03-24 11:15:11,136 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-24 11:15:11,138 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 11:15:11,141 INFO L132 encePairwiseOnDemand]: 270/278 looper letters, 28 selfloop transitions, 4 changer transitions 3/65 dead transitions. [2021-03-24 11:15:11,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 216 flow [2021-03-24 11:15:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:15:11,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:15:11,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 599 transitions. [2021-03-24 11:15:11,156 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7182254196642686 [2021-03-24 11:15:11,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 599 transitions. [2021-03-24 11:15:11,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 599 transitions. [2021-03-24 11:15:11,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:11,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 599 transitions. [2021-03-24 11:15:11,166 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 11:15:11,172 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 11:15:11,176 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 11:15:11,177 INFO L185 Difference]: Start difference. First operand has 66 places, 66 transitions, 150 flow. Second operand 3 states and 599 transitions. [2021-03-24 11:15:11,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 216 flow [2021-03-24 11:15:11,181 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 11:15:11,182 INFO L241 Difference]: Finished difference. Result has 63 places, 62 transitions, 148 flow [2021-03-24 11:15:11,184 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 11:15:11,184 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2021-03-24 11:15:11,184 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 148 flow [2021-03-24 11:15:11,184 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 11:15:11,185 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:11,185 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:15:11,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:15:11,186 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 11:15:11,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:11,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1453419847, now seen corresponding path program 1 times [2021-03-24 11:15:11,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:11,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487327899] [2021-03-24 11:15:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:11,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:11,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:15:11,267 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 11:15:11,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487327899] [2021-03-24 11:15:11,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:11,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:15:11,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898056806] [2021-03-24 11:15:11,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:15:11,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:11,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:15:11,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:15:11,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 278 [2021-03-24 11:15:11,279 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 11:15:11,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:11,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 278 [2021-03-24 11:15:11,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:11,389 INFO L129 PetriNetUnfolder]: 170/391 cut-off events. [2021-03-24 11:15:11,389 INFO L130 PetriNetUnfolder]: For 50/54 co-relation queries the response was YES. [2021-03-24 11:15:11,392 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 11:15:11,393 INFO L132 encePairwiseOnDemand]: 273/278 looper letters, 27 selfloop transitions, 4 changer transitions 1/62 dead transitions. [2021-03-24 11:15:11,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 62 transitions, 212 flow [2021-03-24 11:15:11,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:15:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:15:11,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2021-03-24 11:15:11,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7122302158273381 [2021-03-24 11:15:11,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 594 transitions. [2021-03-24 11:15:11,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 594 transitions. [2021-03-24 11:15:11,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:11,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 594 transitions. [2021-03-24 11:15:11,396 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 11:15:11,397 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 11:15:11,398 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 11:15:11,398 INFO L185 Difference]: Start difference. First operand has 63 places, 62 transitions, 148 flow. Second operand 3 states and 594 transitions. [2021-03-24 11:15:11,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 62 transitions, 212 flow [2021-03-24 11:15:11,399 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 11:15:11,400 INFO L241 Difference]: Finished difference. Result has 61 places, 61 transitions, 150 flow [2021-03-24 11:15:11,400 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 11:15:11,401 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -5 predicate places. [2021-03-24 11:15:11,401 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 150 flow [2021-03-24 11:15:11,401 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 11:15:11,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:11,401 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 11:15:11,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:15:11,402 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 11:15:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:11,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1837389700, now seen corresponding path program 1 times [2021-03-24 11:15:11,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:11,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700104126] [2021-03-24 11:15:11,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:11,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:11,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:11,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:15:11,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:11,485 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 11:15:11,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700104126] [2021-03-24 11:15:11,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:11,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:15:11,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678365704] [2021-03-24 11:15:11,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:15:11,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:11,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:15:11,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:15:11,488 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 278 [2021-03-24 11:15:11,489 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 11:15:11,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:11,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 278 [2021-03-24 11:15:11,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:11,647 INFO L129 PetriNetUnfolder]: 386/805 cut-off events. [2021-03-24 11:15:11,647 INFO L130 PetriNetUnfolder]: For 90/94 co-relation queries the response was YES. [2021-03-24 11:15:11,648 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 11:15:11,651 INFO L132 encePairwiseOnDemand]: 270/278 looper letters, 40 selfloop transitions, 7 changer transitions 13/85 dead transitions. [2021-03-24 11:15:11,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 85 transitions, 324 flow [2021-03-24 11:15:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:15:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:15:11,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 834 transitions. [2021-03-24 11:15:11,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-24 11:15:11,655 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 834 transitions. [2021-03-24 11:15:11,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 834 transitions. [2021-03-24 11:15:11,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:11,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 834 transitions. [2021-03-24 11:15:11,657 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 11:15:11,659 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 11:15:11,659 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 11:15:11,659 INFO L185 Difference]: Start difference. First operand has 61 places, 61 transitions, 150 flow. Second operand 5 states and 834 transitions. [2021-03-24 11:15:11,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 85 transitions, 324 flow [2021-03-24 11:15:11,660 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 11:15:11,662 INFO L241 Difference]: Finished difference. Result has 66 places, 65 transitions, 195 flow [2021-03-24 11:15:11,662 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 11:15:11,662 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2021-03-24 11:15:11,662 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 195 flow [2021-03-24 11:15:11,662 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 11:15:11,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:11,662 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 11:15:11,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:15:11,663 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 11:15:11,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:11,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1826966677, now seen corresponding path program 1 times [2021-03-24 11:15:11,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:11,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102257202] [2021-03-24 11:15:11,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:11,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:11,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:15:11,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:11,720 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 11:15:11,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102257202] [2021-03-24 11:15:11,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:11,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:15:11,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793960199] [2021-03-24 11:15:11,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:15:11,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:11,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:15:11,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:15:11,723 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 278 [2021-03-24 11:15:11,723 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 11:15:11,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:11,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 278 [2021-03-24 11:15:11,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:11,853 INFO L129 PetriNetUnfolder]: 455/929 cut-off events. [2021-03-24 11:15:11,854 INFO L130 PetriNetUnfolder]: For 831/841 co-relation queries the response was YES. [2021-03-24 11:15:11,855 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 11:15:11,858 INFO L132 encePairwiseOnDemand]: 271/278 looper letters, 42 selfloop transitions, 9 changer transitions 23/96 dead transitions. [2021-03-24 11:15:11,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 96 transitions, 487 flow [2021-03-24 11:15:11,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:15:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:15:11,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 833 transitions. [2021-03-24 11:15:11,860 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5992805755395684 [2021-03-24 11:15:11,860 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 833 transitions. [2021-03-24 11:15:11,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 833 transitions. [2021-03-24 11:15:11,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:11,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 833 transitions. [2021-03-24 11:15:11,862 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 11:15:11,863 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 11:15:11,864 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 11:15:11,864 INFO L185 Difference]: Start difference. First operand has 66 places, 65 transitions, 195 flow. Second operand 5 states and 833 transitions. [2021-03-24 11:15:11,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 96 transitions, 487 flow [2021-03-24 11:15:11,868 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 11:15:11,869 INFO L241 Difference]: Finished difference. Result has 69 places, 67 transitions, 273 flow [2021-03-24 11:15:11,869 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 11:15:11,869 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 3 predicate places. [2021-03-24 11:15:11,869 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 273 flow [2021-03-24 11:15:11,870 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 11:15:11,870 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:11,870 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 11:15:11,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:15:11,870 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 11:15:11,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:11,871 INFO L82 PathProgramCache]: Analyzing trace with hash 2038980540, now seen corresponding path program 1 times [2021-03-24 11:15:11,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:11,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521378087] [2021-03-24 11:15:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:11,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:11,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:11,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:11,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:11,924 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 11:15:11,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521378087] [2021-03-24 11:15:11,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:11,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:15:11,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846505372] [2021-03-24 11:15:11,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:15:11,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:11,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:15:11,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:15:11,926 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 278 [2021-03-24 11:15:11,926 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 11:15:11,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:11,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 278 [2021-03-24 11:15:11,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:11,937 INFO L129 PetriNetUnfolder]: 6/69 cut-off events. [2021-03-24 11:15:11,938 INFO L130 PetriNetUnfolder]: For 83/105 co-relation queries the response was YES. [2021-03-24 11:15:11,938 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 11:15:11,938 INFO L132 encePairwiseOnDemand]: 276/278 looper letters, 3 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2021-03-24 11:15:11,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 148 flow [2021-03-24 11:15:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:15:11,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:15:11,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2021-03-24 11:15:11,939 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8477218225419664 [2021-03-24 11:15:11,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 707 transitions. [2021-03-24 11:15:11,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 707 transitions. [2021-03-24 11:15:11,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:11,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 707 transitions. [2021-03-24 11:15:11,941 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 11:15:11,942 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 11:15:11,942 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 11:15:11,942 INFO L185 Difference]: Start difference. First operand has 69 places, 67 transitions, 273 flow. Second operand 3 states and 707 transitions. [2021-03-24 11:15:11,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 148 flow [2021-03-24 11:15:11,943 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 11:15:11,945 INFO L241 Difference]: Finished difference. Result has 52 places, 46 transitions, 118 flow [2021-03-24 11:15:11,946 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 11:15:11,946 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -14 predicate places. [2021-03-24 11:15:11,946 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 118 flow [2021-03-24 11:15:11,946 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 11:15:11,946 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:11,946 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 11:15:11,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 11:15:11,946 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 11:15:11,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:11,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1788791090, now seen corresponding path program 1 times [2021-03-24 11:15:11,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:11,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853593047] [2021-03-24 11:15:11,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:12,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:12,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:12,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:12,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:12,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:12,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:15:12,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:12,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:12,165 INFO L142 QuantifierPusher]: treesize reduction 12, result has 70.7 percent of original size [2021-03-24 11:15:12,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:15:12,196 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 11:15:12,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:12,226 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 11:15:12,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:12,258 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 11:15:12,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:12,262 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:12,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:12,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:12,265 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 11:15:12,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853593047] [2021-03-24 11:15:12,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:12,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:15:12,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085319149] [2021-03-24 11:15:12,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 11:15:12,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:12,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 11:15:12,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-24 11:15:12,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 278 [2021-03-24 11:15:12,271 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 11:15:12,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:12,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 278 [2021-03-24 11:15:12,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:12,582 INFO L129 PetriNetUnfolder]: 27/141 cut-off events. [2021-03-24 11:15:12,582 INFO L130 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2021-03-24 11:15:12,582 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 11:15:12,583 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 23 selfloop transitions, 11 changer transitions 0/63 dead transitions. [2021-03-24 11:15:12,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 63 transitions, 228 flow [2021-03-24 11:15:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:15:12,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:15:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2065 transitions. [2021-03-24 11:15:12,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7428057553956835 [2021-03-24 11:15:12,586 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2065 transitions. [2021-03-24 11:15:12,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2065 transitions. [2021-03-24 11:15:12,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:12,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2065 transitions. [2021-03-24 11:15:12,589 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 11:15:12,592 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 11:15:12,593 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 11:15:12,594 INFO L185 Difference]: Start difference. First operand has 52 places, 46 transitions, 118 flow. Second operand 10 states and 2065 transitions. [2021-03-24 11:15:12,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 63 transitions, 228 flow [2021-03-24 11:15:12,594 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 11:15:12,595 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 161 flow [2021-03-24 11:15:12,595 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 11:15:12,595 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2021-03-24 11:15:12,595 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 161 flow [2021-03-24 11:15:12,596 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 11:15:12,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:12,596 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 11:15:12,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 11:15:12,596 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 11:15:12,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:12,596 INFO L82 PathProgramCache]: Analyzing trace with hash 685893476, now seen corresponding path program 1 times [2021-03-24 11:15:12,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:12,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276233556] [2021-03-24 11:15:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:12,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:12,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 11:15:12,695 INFO L142 QuantifierPusher]: treesize reduction 12, result has 53.8 percent of original size [2021-03-24 11:15:12,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:12,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:12,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:12,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:12,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:12,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:12,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:12,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:12,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:12,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:15:12,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:12,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:12,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:12,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:15:12,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:12,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:12,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:12,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:15:12,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:12,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:12,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:12,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:12,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:12,910 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 11:15:12,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276233556] [2021-03-24 11:15:12,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:12,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 11:15:12,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750722854] [2021-03-24 11:15:12,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-24 11:15:12,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:12,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-24 11:15:12,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-03-24 11:15:12,914 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 278 [2021-03-24 11:15:12,915 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 11:15:12,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:12,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 278 [2021-03-24 11:15:12,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:14,321 INFO L129 PetriNetUnfolder]: 182/399 cut-off events. [2021-03-24 11:15:14,321 INFO L130 PetriNetUnfolder]: For 215/215 co-relation queries the response was YES. [2021-03-24 11:15:14,322 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 149 conditions per place. [2021-03-24 11:15:14,323 INFO L132 encePairwiseOnDemand]: 263/278 looper letters, 79 selfloop transitions, 43 changer transitions 10/141 dead transitions. [2021-03-24 11:15:14,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 141 transitions, 771 flow [2021-03-24 11:15:14,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-24 11:15:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-03-24 11:15:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3791 transitions. [2021-03-24 11:15:14,329 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4870246659815005 [2021-03-24 11:15:14,329 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3791 transitions. [2021-03-24 11:15:14,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3791 transitions. [2021-03-24 11:15:14,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:14,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3791 transitions. [2021-03-24 11:15:14,335 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 11:15:14,342 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 11:15:14,344 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 11:15:14,344 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 161 flow. Second operand 28 states and 3791 transitions. [2021-03-24 11:15:14,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 141 transitions, 771 flow [2021-03-24 11:15:14,345 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 11:15:14,347 INFO L241 Difference]: Finished difference. Result has 83 places, 76 transitions, 323 flow [2021-03-24 11:15:14,347 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=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=323, PETRI_PLACES=83, PETRI_TRANSITIONS=76} [2021-03-24 11:15:14,347 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2021-03-24 11:15:14,347 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 76 transitions, 323 flow [2021-03-24 11:15:14,348 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 11:15:14,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:14,348 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 11:15:14,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 11:15:14,349 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 11:15:14,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:14,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1595848208, now seen corresponding path program 2 times [2021-03-24 11:15:14,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:14,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528643871] [2021-03-24 11:15:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:14,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:14,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:14,495 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:14,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:14,503 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:14,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:14,511 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 11:15:14,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:14,523 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:14,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:14,533 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:14,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:14,547 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 11:15:14,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:14,574 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 11:15:14,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:15:14,605 INFO L142 QuantifierPusher]: treesize reduction 23, result has 69.3 percent of original size [2021-03-24 11:15:14,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:15:14,617 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 11:15:14,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:15:14,618 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:14,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:14,630 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:14,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:14,644 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:14,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:14,645 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 11:15:14,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:14,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:14,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:14,667 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 11:15:14,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528643871] [2021-03-24 11:15:14,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:14,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 11:15:14,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622057107] [2021-03-24 11:15:14,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:15:14,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:14,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:15:14,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:15:14,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 278 [2021-03-24 11:15:14,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 76 transitions, 323 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 11:15:14,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:14,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 278 [2021-03-24 11:15:14,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:15,059 INFO L129 PetriNetUnfolder]: 181/480 cut-off events. [2021-03-24 11:15:15,059 INFO L130 PetriNetUnfolder]: For 257/269 co-relation queries the response was YES. [2021-03-24 11:15:15,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 480 events. 181/480 cut-off events. For 257/269 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 1323. Up to 137 conditions per place. [2021-03-24 11:15:15,062 INFO L132 encePairwiseOnDemand]: 265/278 looper letters, 61 selfloop transitions, 24 changer transitions 0/110 dead transitions. [2021-03-24 11:15:15,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 110 transitions, 618 flow [2021-03-24 11:15:15,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:15:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:15:15,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1283 transitions. [2021-03-24 11:15:15,065 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4615107913669065 [2021-03-24 11:15:15,065 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1283 transitions. [2021-03-24 11:15:15,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1283 transitions. [2021-03-24 11:15:15,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:15,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1283 transitions. [2021-03-24 11:15:15,067 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 11:15:15,070 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 11:15:15,070 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 11:15:15,070 INFO L185 Difference]: Start difference. First operand has 83 places, 76 transitions, 323 flow. Second operand 10 states and 1283 transitions. [2021-03-24 11:15:15,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 110 transitions, 618 flow [2021-03-24 11:15:15,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 110 transitions, 541 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-24 11:15:15,075 INFO L241 Difference]: Finished difference. Result has 82 places, 85 transitions, 362 flow [2021-03-24 11:15:15,075 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=250, 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=362, PETRI_PLACES=82, PETRI_TRANSITIONS=85} [2021-03-24 11:15:15,075 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 16 predicate places. [2021-03-24 11:15:15,075 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 85 transitions, 362 flow [2021-03-24 11:15:15,076 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 11:15:15,076 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:15,076 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 11:15:15,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 11:15:15,076 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 11:15:15,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:15,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1634819724, now seen corresponding path program 3 times [2021-03-24 11:15:15,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:15,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911708777] [2021-03-24 11:15:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:15,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:15,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:15,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:15,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:15,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:15,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:15,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:15,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:15:15,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:15,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:15,265 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 11:15:15,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:15,293 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 11:15:15,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:15,324 INFO L142 QuantifierPusher]: treesize reduction 25, result has 68.8 percent of original size [2021-03-24 11:15:15,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:15:15,367 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 11:15:15,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:15,369 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:15,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:15,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:15,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:15,370 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 11:15:15,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911708777] [2021-03-24 11:15:15,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:15,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 11:15:15,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449012669] [2021-03-24 11:15:15,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:15:15,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:15,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:15:15,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:15:15,373 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 278 [2021-03-24 11:15:15,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 85 transitions, 362 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 11:15:15,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:15,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 278 [2021-03-24 11:15:15,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:16,052 INFO L129 PetriNetUnfolder]: 267/629 cut-off events. [2021-03-24 11:15:16,052 INFO L130 PetriNetUnfolder]: For 762/778 co-relation queries the response was YES. [2021-03-24 11:15:16,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2061 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 2049. Up to 316 conditions per place. [2021-03-24 11:15:16,055 INFO L132 encePairwiseOnDemand]: 262/278 looper letters, 78 selfloop transitions, 33 changer transitions 6/125 dead transitions. [2021-03-24 11:15:16,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 125 transitions, 798 flow [2021-03-24 11:15:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:15:16,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:15:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1727 transitions. [2021-03-24 11:15:16,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4141486810551559 [2021-03-24 11:15:16,059 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1727 transitions. [2021-03-24 11:15:16,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1727 transitions. [2021-03-24 11:15:16,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:16,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1727 transitions. [2021-03-24 11:15:16,062 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 11:15:16,074 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 11:15:16,076 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 11:15:16,076 INFO L185 Difference]: Start difference. First operand has 82 places, 85 transitions, 362 flow. Second operand 15 states and 1727 transitions. [2021-03-24 11:15:16,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 125 transitions, 798 flow [2021-03-24 11:15:16,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 125 transitions, 772 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-24 11:15:16,079 INFO L241 Difference]: Finished difference. Result has 94 places, 92 transitions, 468 flow [2021-03-24 11:15:16,079 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=342, 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=468, PETRI_PLACES=94, PETRI_TRANSITIONS=92} [2021-03-24 11:15:16,079 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 28 predicate places. [2021-03-24 11:15:16,079 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 468 flow [2021-03-24 11:15:16,080 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 11:15:16,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:16,080 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] [2021-03-24 11:15:16,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 11:15:16,080 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 11:15:16,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:16,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1280704754, now seen corresponding path program 4 times [2021-03-24 11:15:16,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:16,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261458135] [2021-03-24 11:15:16,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:16,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:16,194 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:16,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:16,204 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:16,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:16,211 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 11:15:16,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:16,222 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:16,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:16,232 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:16,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:16,244 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 11:15:16,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:16,267 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:15:16,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:16,293 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:16,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:16,327 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 11:15:16,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:15:16,340 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:16,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:16,342 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:16,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:16,355 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 11:15:16,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:16,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:16,379 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 11:15:16,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261458135] [2021-03-24 11:15:16,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:16,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 11:15:16,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309037162] [2021-03-24 11:15:16,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:15:16,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:16,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:15:16,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:15:16,383 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 278 [2021-03-24 11:15:16,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 468 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 11:15:16,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:16,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 278 [2021-03-24 11:15:16,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:16,858 INFO L129 PetriNetUnfolder]: 280/779 cut-off events. [2021-03-24 11:15:16,859 INFO L130 PetriNetUnfolder]: For 1031/1061 co-relation queries the response was YES. [2021-03-24 11:15:16,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2585 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 2570. Up to 238 conditions per place. [2021-03-24 11:15:16,863 INFO L132 encePairwiseOnDemand]: 265/278 looper letters, 77 selfloop transitions, 36 changer transitions 0/141 dead transitions. [2021-03-24 11:15:16,863 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 141 transitions, 928 flow [2021-03-24 11:15:16,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 11:15:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 11:15:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1420 transitions. [2021-03-24 11:15:16,869 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4643557880967953 [2021-03-24 11:15:16,869 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1420 transitions. [2021-03-24 11:15:16,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1420 transitions. [2021-03-24 11:15:16,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:16,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1420 transitions. [2021-03-24 11:15:16,871 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 11:15:16,874 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 11:15:16,874 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 11:15:16,874 INFO L185 Difference]: Start difference. First operand has 94 places, 92 transitions, 468 flow. Second operand 11 states and 1420 transitions. [2021-03-24 11:15:16,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 141 transitions, 928 flow [2021-03-24 11:15:16,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 141 transitions, 892 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-24 11:15:16,879 INFO L241 Difference]: Finished difference. Result has 97 places, 100 transitions, 583 flow [2021-03-24 11:15:16,880 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=432, 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=583, PETRI_PLACES=97, PETRI_TRANSITIONS=100} [2021-03-24 11:15:16,880 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 31 predicate places. [2021-03-24 11:15:16,880 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 100 transitions, 583 flow [2021-03-24 11:15:16,880 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 11:15:16,880 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:16,880 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 11:15:16,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 11:15:16,881 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 11:15:16,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:16,881 INFO L82 PathProgramCache]: Analyzing trace with hash 935546746, now seen corresponding path program 5 times [2021-03-24 11:15:16,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:16,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469624208] [2021-03-24 11:15:16,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:16,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:16,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:16,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:16,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:16,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:16,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:15:16,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:16,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:16,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:16,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:17,001 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 11:15:17,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:17,030 INFO L142 QuantifierPusher]: treesize reduction 25, result has 68.8 percent of original size [2021-03-24 11:15:17,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:15:17,073 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 11:15:17,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:17,075 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:17,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:17,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:15:17,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469624208] [2021-03-24 11:15:17,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:17,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:15:17,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621050800] [2021-03-24 11:15:17,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 11:15:17,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:17,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 11:15:17,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-24 11:15:17,083 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 278 [2021-03-24 11:15:17,084 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 100 transitions, 583 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 11:15:17,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:17,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 278 [2021-03-24 11:15:17,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:17,514 INFO L129 PetriNetUnfolder]: 295/1075 cut-off events. [2021-03-24 11:15:17,515 INFO L130 PetriNetUnfolder]: For 2234/2289 co-relation queries the response was YES. [2021-03-24 11:15:17,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3874 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 3856. Up to 332 conditions per place. [2021-03-24 11:15:17,521 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 81 selfloop transitions, 25 changer transitions 1/151 dead transitions. [2021-03-24 11:15:17,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 151 transitions, 1170 flow [2021-03-24 11:15:17,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:15:17,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:15:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2003 transitions. [2021-03-24 11:15:17,524 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7205035971223022 [2021-03-24 11:15:17,524 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2003 transitions. [2021-03-24 11:15:17,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2003 transitions. [2021-03-24 11:15:17,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:17,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2003 transitions. [2021-03-24 11:15:17,528 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 11:15:17,530 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 11:15:17,531 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 11:15:17,531 INFO L185 Difference]: Start difference. First operand has 97 places, 100 transitions, 583 flow. Second operand 10 states and 2003 transitions. [2021-03-24 11:15:17,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 151 transitions, 1170 flow [2021-03-24 11:15:17,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 151 transitions, 1127 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-24 11:15:17,537 INFO L241 Difference]: Finished difference. Result has 104 places, 110 transitions, 720 flow [2021-03-24 11:15:17,537 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=553, 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=720, PETRI_PLACES=104, PETRI_TRANSITIONS=110} [2021-03-24 11:15:17,537 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 38 predicate places. [2021-03-24 11:15:17,537 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 110 transitions, 720 flow [2021-03-24 11:15:17,538 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 11:15:17,538 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:17,538 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 11:15:17,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 11:15:17,538 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 11:15:17,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:17,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1031160992, now seen corresponding path program 6 times [2021-03-24 11:15:17,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:17,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470810454] [2021-03-24 11:15:17,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:17,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:17,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:17,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:17,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:17,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:17,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:15:17,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:17,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:17,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:17,677 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 11:15:17,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:17,705 INFO L142 QuantifierPusher]: treesize reduction 25, result has 68.8 percent of original size [2021-03-24 11:15:17,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:15:17,751 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 11:15:17,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:17,754 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:17,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:17,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:17,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:17,756 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 11:15:17,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470810454] [2021-03-24 11:15:17,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:17,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:15:17,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333439164] [2021-03-24 11:15:17,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 11:15:17,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:17,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 11:15:17,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-24 11:15:17,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 278 [2021-03-24 11:15:17,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 110 transitions, 720 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 11:15:17,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:17,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 278 [2021-03-24 11:15:17,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:18,204 INFO L129 PetriNetUnfolder]: 289/1075 cut-off events. [2021-03-24 11:15:18,204 INFO L130 PetriNetUnfolder]: For 2967/3047 co-relation queries the response was YES. [2021-03-24 11:15:18,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4128 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 4107. Up to 330 conditions per place. [2021-03-24 11:15:18,211 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 83 selfloop transitions, 24 changer transitions 1/152 dead transitions. [2021-03-24 11:15:18,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 152 transitions, 1244 flow [2021-03-24 11:15:18,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:15:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:15:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2002 transitions. [2021-03-24 11:15:18,215 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7201438848920864 [2021-03-24 11:15:18,215 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2002 transitions. [2021-03-24 11:15:18,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2002 transitions. [2021-03-24 11:15:18,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:18,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2002 transitions. [2021-03-24 11:15:18,219 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 11:15:18,222 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 11:15:18,222 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 11:15:18,222 INFO L185 Difference]: Start difference. First operand has 104 places, 110 transitions, 720 flow. Second operand 10 states and 2002 transitions. [2021-03-24 11:15:18,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 152 transitions, 1244 flow [2021-03-24 11:15:18,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 152 transitions, 1218 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-24 11:15:18,230 INFO L241 Difference]: Finished difference. Result has 110 places, 114 transitions, 800 flow [2021-03-24 11:15:18,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=694, 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=800, PETRI_PLACES=110, PETRI_TRANSITIONS=114} [2021-03-24 11:15:18,230 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 44 predicate places. [2021-03-24 11:15:18,230 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 114 transitions, 800 flow [2021-03-24 11:15:18,230 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 11:15:18,230 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:18,231 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 11:15:18,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 11:15:18,231 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 11:15:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:18,231 INFO L82 PathProgramCache]: Analyzing trace with hash -985816350, now seen corresponding path program 7 times [2021-03-24 11:15:18,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:18,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210122047] [2021-03-24 11:15:18,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:18,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:18,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:18,323 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:18,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:18,329 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:18,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:18,341 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 11:15:18,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:18,351 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:18,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:18,361 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:18,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:18,371 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:18,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:18,382 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:15:18,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:18,407 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:18,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:18,446 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 11:15:18,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:15:18,490 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:18,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:18,492 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:18,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:18,506 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 11:15:18,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:18,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:18,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:18,529 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 11:15:18,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210122047] [2021-03-24 11:15:18,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:18,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 11:15:18,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264615807] [2021-03-24 11:15:18,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:15:18,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:18,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:15:18,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:15:18,532 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 278 [2021-03-24 11:15:18,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 114 transitions, 800 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 11:15:18,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:18,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 278 [2021-03-24 11:15:18,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:19,089 INFO L129 PetriNetUnfolder]: 513/1449 cut-off events. [2021-03-24 11:15:19,090 INFO L130 PetriNetUnfolder]: For 4129/4180 co-relation queries the response was YES. [2021-03-24 11:15:19,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5635 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 5612. Up to 665 conditions per place. [2021-03-24 11:15:19,099 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 88 selfloop transitions, 32 changer transitions 0/157 dead transitions. [2021-03-24 11:15:19,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 157 transitions, 1307 flow [2021-03-24 11:15:19,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 11:15:19,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 11:15:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1410 transitions. [2021-03-24 11:15:19,100 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46108567691301505 [2021-03-24 11:15:19,100 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1410 transitions. [2021-03-24 11:15:19,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1410 transitions. [2021-03-24 11:15:19,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:19,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1410 transitions. [2021-03-24 11:15:19,102 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 11:15:19,104 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 11:15:19,105 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 11:15:19,105 INFO L185 Difference]: Start difference. First operand has 110 places, 114 transitions, 800 flow. Second operand 11 states and 1410 transitions. [2021-03-24 11:15:19,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 157 transitions, 1307 flow [2021-03-24 11:15:19,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 157 transitions, 1242 flow, removed 17 selfloop flow, removed 6 redundant places. [2021-03-24 11:15:19,114 INFO L241 Difference]: Finished difference. Result has 117 places, 119 transitions, 873 flow [2021-03-24 11:15:19,114 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=744, 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=873, PETRI_PLACES=117, PETRI_TRANSITIONS=119} [2021-03-24 11:15:19,114 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 51 predicate places. [2021-03-24 11:15:19,114 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 119 transitions, 873 flow [2021-03-24 11:15:19,114 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 11:15:19,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:19,114 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 11:15:19,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 11:15:19,115 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 11:15:19,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:19,115 INFO L82 PathProgramCache]: Analyzing trace with hash -66573828, now seen corresponding path program 8 times [2021-03-24 11:15:19,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:19,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558918084] [2021-03-24 11:15:19,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:19,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:19,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:19,182 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:19,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:19,188 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:19,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:19,195 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 11:15:19,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:19,205 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:19,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:19,214 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:19,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:19,224 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:19,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:19,235 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 11:15:19,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:19,262 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 11:15:19,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:15:19,299 INFO L142 QuantifierPusher]: treesize reduction 23, result has 69.3 percent of original size [2021-03-24 11:15:19,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:15:19,313 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 11:15:19,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:15:19,318 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:19,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:19,357 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:19,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:19,372 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:19,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:19,372 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 11:15:19,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:19,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:19,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:19,397 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 11:15:19,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558918084] [2021-03-24 11:15:19,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:19,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 11:15:19,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915064705] [2021-03-24 11:15:19,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 11:15:19,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:19,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 11:15:19,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-24 11:15:19,399 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 278 [2021-03-24 11:15:19,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 119 transitions, 873 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 11:15:19,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:19,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 278 [2021-03-24 11:15:19,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:19,995 INFO L129 PetriNetUnfolder]: 682/1968 cut-off events. [2021-03-24 11:15:19,995 INFO L130 PetriNetUnfolder]: For 6203/6236 co-relation queries the response was YES. [2021-03-24 11:15:20,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7763 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 7738. Up to 726 conditions per place. [2021-03-24 11:15:20,006 INFO L132 encePairwiseOnDemand]: 265/278 looper letters, 106 selfloop transitions, 39 changer transitions 13/186 dead transitions. [2021-03-24 11:15:20,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 186 transitions, 1720 flow [2021-03-24 11:15:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 11:15:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 11:15:20,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1400 transitions. [2021-03-24 11:15:20,008 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4578155657292348 [2021-03-24 11:15:20,008 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1400 transitions. [2021-03-24 11:15:20,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1400 transitions. [2021-03-24 11:15:20,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:20,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1400 transitions. [2021-03-24 11:15:20,011 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 11:15:20,013 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 11:15:20,014 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 11:15:20,014 INFO L185 Difference]: Start difference. First operand has 117 places, 119 transitions, 873 flow. Second operand 11 states and 1400 transitions. [2021-03-24 11:15:20,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 186 transitions, 1720 flow [2021-03-24 11:15:20,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 186 transitions, 1658 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-24 11:15:20,026 INFO L241 Difference]: Finished difference. Result has 124 places, 127 transitions, 981 flow [2021-03-24 11:15:20,026 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=823, 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=981, PETRI_PLACES=124, PETRI_TRANSITIONS=127} [2021-03-24 11:15:20,026 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 58 predicate places. [2021-03-24 11:15:20,026 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 127 transitions, 981 flow [2021-03-24 11:15:20,027 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 11:15:20,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:20,027 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 11:15:20,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 11:15:20,027 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 11:15:20,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:20,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1144581886, now seen corresponding path program 9 times [2021-03-24 11:15:20,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:20,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135459964] [2021-03-24 11:15:20,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:20,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:20,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:20,085 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:20,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:20,091 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:20,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:20,098 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 11:15:20,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:20,109 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:20,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:20,118 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:20,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:20,128 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:20,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:20,139 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 11:15:20,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:20,165 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:15:20,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:20,194 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:20,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:20,232 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 11:15:20,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:15:20,248 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:20,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:20,250 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:20,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:20,265 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:20,266 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 11:15:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:20,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:20,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:20,291 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 11:15:20,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135459964] [2021-03-24 11:15:20,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:20,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 11:15:20,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443224308] [2021-03-24 11:15:20,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 11:15:20,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:20,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 11:15:20,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-24 11:15:20,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 278 [2021-03-24 11:15:20,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 127 transitions, 981 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 11:15:20,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:20,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 278 [2021-03-24 11:15:20,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:20,974 INFO L129 PetriNetUnfolder]: 823/2591 cut-off events. [2021-03-24 11:15:20,974 INFO L130 PetriNetUnfolder]: For 9140/9235 co-relation queries the response was YES. [2021-03-24 11:15:20,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10894 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 10866. Up to 725 conditions per place. [2021-03-24 11:15:20,993 INFO L132 encePairwiseOnDemand]: 265/278 looper letters, 127 selfloop transitions, 50 changer transitions 9/214 dead transitions. [2021-03-24 11:15:20,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 214 transitions, 2065 flow [2021-03-24 11:15:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 11:15:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 11:15:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1535 transitions. [2021-03-24 11:15:20,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4601318944844125 [2021-03-24 11:15:20,995 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1535 transitions. [2021-03-24 11:15:20,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1535 transitions. [2021-03-24 11:15:20,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:20,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1535 transitions. [2021-03-24 11:15:20,997 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 11:15:20,999 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 11:15:21,000 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 11:15:21,000 INFO L185 Difference]: Start difference. First operand has 124 places, 127 transitions, 981 flow. Second operand 12 states and 1535 transitions. [2021-03-24 11:15:21,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 214 transitions, 2065 flow [2021-03-24 11:15:21,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 214 transitions, 2009 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-24 11:15:21,017 INFO L241 Difference]: Finished difference. Result has 131 places, 138 transitions, 1165 flow [2021-03-24 11:15:21,017 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=932, 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=1165, PETRI_PLACES=131, PETRI_TRANSITIONS=138} [2021-03-24 11:15:21,017 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 65 predicate places. [2021-03-24 11:15:21,017 INFO L480 AbstractCegarLoop]: Abstraction has has 131 places, 138 transitions, 1165 flow [2021-03-24 11:15:21,017 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 11:15:21,017 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:21,018 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 11:15:21,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 11:15:21,018 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 11:15:21,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:21,018 INFO L82 PathProgramCache]: Analyzing trace with hash 622209568, now seen corresponding path program 10 times [2021-03-24 11:15:21,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:21,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835444603] [2021-03-24 11:15:21,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:21,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:21,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:21,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:21,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:21,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:21,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:15:21,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:21,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:21,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:21,116 INFO L142 QuantifierPusher]: treesize reduction 12, result has 70.7 percent of original size [2021-03-24 11:15:21,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:15:21,141 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 11:15:21,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:21,171 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 11:15:21,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:21,173 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:21,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:21,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:21,174 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 11:15:21,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835444603] [2021-03-24 11:15:21,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:21,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:15:21,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618702304] [2021-03-24 11:15:21,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 11:15:21,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:21,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 11:15:21,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-24 11:15:21,176 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 278 [2021-03-24 11:15:21,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 138 transitions, 1165 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 11:15:21,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:21,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 278 [2021-03-24 11:15:21,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:21,577 INFO L129 PetriNetUnfolder]: 197/1261 cut-off events. [2021-03-24 11:15:21,577 INFO L130 PetriNetUnfolder]: For 5549/5743 co-relation queries the response was YES. [2021-03-24 11:15:21,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5434 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 5404. Up to 359 conditions per place. [2021-03-24 11:15:21,589 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 60 selfloop transitions, 29 changer transitions 0/160 dead transitions. [2021-03-24 11:15:21,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 160 transitions, 1551 flow [2021-03-24 11:15:21,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:15:21,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:15:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2067 transitions. [2021-03-24 11:15:21,594 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7435251798561151 [2021-03-24 11:15:21,594 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2067 transitions. [2021-03-24 11:15:21,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2067 transitions. [2021-03-24 11:15:21,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:21,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2067 transitions. [2021-03-24 11:15:21,598 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 11:15:21,602 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 11:15:21,602 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 11:15:21,603 INFO L185 Difference]: Start difference. First operand has 131 places, 138 transitions, 1165 flow. Second operand 10 states and 2067 transitions. [2021-03-24 11:15:21,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 160 transitions, 1551 flow [2021-03-24 11:15:21,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 160 transitions, 1493 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-24 11:15:21,617 INFO L241 Difference]: Finished difference. Result has 137 places, 144 transitions, 1271 flow [2021-03-24 11:15:21,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1091, 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=1271, PETRI_PLACES=137, PETRI_TRANSITIONS=144} [2021-03-24 11:15:21,618 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 71 predicate places. [2021-03-24 11:15:21,618 INFO L480 AbstractCegarLoop]: Abstraction has has 137 places, 144 transitions, 1271 flow [2021-03-24 11:15:21,618 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 11:15:21,618 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:21,618 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 11:15:21,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 11:15:21,618 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 11:15:21,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:21,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1547103982, now seen corresponding path program 11 times [2021-03-24 11:15:21,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:21,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505892302] [2021-03-24 11:15:21,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:21,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:21,693 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:21,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:21,700 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:21,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:21,707 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 11:15:21,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:21,717 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:21,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:21,726 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:21,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:21,740 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:21,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:21,751 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:21,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:21,764 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:15:21,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:21,791 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:21,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:21,827 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 11:15:21,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:15:21,841 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:21,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:21,844 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:21,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:21,858 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:21,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:21,859 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 11:15:21,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:21,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:21,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:21,883 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 11:15:21,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505892302] [2021-03-24 11:15:21,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:21,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 11:15:21,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663831961] [2021-03-24 11:15:21,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 11:15:21,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:21,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 11:15:21,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-24 11:15:21,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 278 [2021-03-24 11:15:21,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 144 transitions, 1271 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 11:15:21,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:21,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 278 [2021-03-24 11:15:21,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:22,637 INFO L129 PetriNetUnfolder]: 690/2410 cut-off events. [2021-03-24 11:15:22,637 INFO L130 PetriNetUnfolder]: For 10541/10618 co-relation queries the response was YES. [2021-03-24 11:15:22,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10897 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 10864. Up to 782 conditions per place. [2021-03-24 11:15:22,651 INFO L132 encePairwiseOnDemand]: 266/278 looper letters, 151 selfloop transitions, 45 changer transitions 3/233 dead transitions. [2021-03-24 11:15:22,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 233 transitions, 2411 flow [2021-03-24 11:15:22,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 11:15:22,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 11:15:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1529 transitions. [2021-03-24 11:15:22,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2021-03-24 11:15:22,654 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1529 transitions. [2021-03-24 11:15:22,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1529 transitions. [2021-03-24 11:15:22,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:22,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1529 transitions. [2021-03-24 11:15:22,656 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 11:15:22,658 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 11:15:22,658 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 11:15:22,658 INFO L185 Difference]: Start difference. First operand has 137 places, 144 transitions, 1271 flow. Second operand 12 states and 1529 transitions. [2021-03-24 11:15:22,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 233 transitions, 2411 flow [2021-03-24 11:15:22,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 233 transitions, 2370 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-24 11:15:22,681 INFO L241 Difference]: Finished difference. Result has 146 places, 156 transitions, 1495 flow [2021-03-24 11:15:22,681 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1230, 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=1495, PETRI_PLACES=146, PETRI_TRANSITIONS=156} [2021-03-24 11:15:22,682 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 80 predicate places. [2021-03-24 11:15:22,682 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 156 transitions, 1495 flow [2021-03-24 11:15:22,682 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 11:15:22,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:22,682 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 11:15:22,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 11:15:22,682 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 11:15:22,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:22,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1147023278, now seen corresponding path program 12 times [2021-03-24 11:15:22,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:22,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399102240] [2021-03-24 11:15:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:22,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:22,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:22,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:22,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:22,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:22,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:22,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:22,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:15:22,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:22,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:22,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:22,821 INFO L142 QuantifierPusher]: treesize reduction 22, result has 56.0 percent of original size [2021-03-24 11:15:22,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:15:22,846 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:15:22,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:15:22,879 INFO L142 QuantifierPusher]: treesize reduction 66, result has 32.7 percent of original size [2021-03-24 11:15:22,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:22,880 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-24 11:15:22,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:22,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:22,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:22,882 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 11:15:22,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399102240] [2021-03-24 11:15:22,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:22,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 11:15:22,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206954976] [2021-03-24 11:15:22,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:15:22,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:22,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:15:22,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:15:22,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 278 [2021-03-24 11:15:22,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 156 transitions, 1495 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 11:15:22,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:22,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 278 [2021-03-24 11:15:22,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:23,609 INFO L129 PetriNetUnfolder]: 961/3079 cut-off events. [2021-03-24 11:15:23,610 INFO L130 PetriNetUnfolder]: For 18667/18701 co-relation queries the response was YES. [2021-03-24 11:15:23,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15058 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 15021. Up to 1525 conditions per place. [2021-03-24 11:15:23,626 INFO L132 encePairwiseOnDemand]: 262/278 looper letters, 256 selfloop transitions, 34 changer transitions 0/298 dead transitions. [2021-03-24 11:15:23,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 298 transitions, 3638 flow [2021-03-24 11:15:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 11:15:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 11:15:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1561 transitions. [2021-03-24 11:15:23,628 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43193137797454345 [2021-03-24 11:15:23,628 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1561 transitions. [2021-03-24 11:15:23,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1561 transitions. [2021-03-24 11:15:23,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:23,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1561 transitions. [2021-03-24 11:15:23,630 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 11:15:23,632 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 11:15:23,633 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 11:15:23,633 INFO L185 Difference]: Start difference. First operand has 146 places, 156 transitions, 1495 flow. Second operand 13 states and 1561 transitions. [2021-03-24 11:15:23,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 298 transitions, 3638 flow [2021-03-24 11:15:23,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 298 transitions, 3584 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-03-24 11:15:23,664 INFO L241 Difference]: Finished difference. Result has 155 places, 161 transitions, 1634 flow [2021-03-24 11:15:23,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1452, 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=1634, PETRI_PLACES=155, PETRI_TRANSITIONS=161} [2021-03-24 11:15:23,664 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 89 predicate places. [2021-03-24 11:15:23,664 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 161 transitions, 1634 flow [2021-03-24 11:15:23,665 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 11:15:23,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:23,665 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 11:15:23,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 11:15:23,665 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 11:15:23,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:23,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1371012890, now seen corresponding path program 13 times [2021-03-24 11:15:23,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:23,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768243548] [2021-03-24 11:15:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:23,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:23,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:23,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:23,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:23,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:23,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:15:23,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:23,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:23,750 INFO L142 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-03-24 11:15:23,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:15:23,772 INFO L142 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-03-24 11:15:23,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:15:23,797 INFO L142 QuantifierPusher]: treesize reduction 25, result has 68.8 percent of original size [2021-03-24 11:15:23,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:15:23,841 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 11:15:23,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:23,842 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:23,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:23,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:23,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:23,844 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 11:15:23,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768243548] [2021-03-24 11:15:23,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:23,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:15:23,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452083584] [2021-03-24 11:15:23,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 11:15:23,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:23,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 11:15:23,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-24 11:15:23,846 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 278 [2021-03-24 11:15:23,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 161 transitions, 1634 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 11:15:23,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:23,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 278 [2021-03-24 11:15:23,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:24,392 INFO L129 PetriNetUnfolder]: 339/2036 cut-off events. [2021-03-24 11:15:24,392 INFO L130 PetriNetUnfolder]: For 12129/12349 co-relation queries the response was YES. [2021-03-24 11:15:24,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9741 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 9702. Up to 468 conditions per place. [2021-03-24 11:15:24,403 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 105 selfloop transitions, 36 changer transitions 0/209 dead transitions. [2021-03-24 11:15:24,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 209 transitions, 2419 flow [2021-03-24 11:15:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:15:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:15:24,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2001 transitions. [2021-03-24 11:15:24,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7197841726618706 [2021-03-24 11:15:24,406 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2001 transitions. [2021-03-24 11:15:24,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2001 transitions. [2021-03-24 11:15:24,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:24,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2001 transitions. [2021-03-24 11:15:24,408 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 11:15:24,410 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 11:15:24,410 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 11:15:24,410 INFO L185 Difference]: Start difference. First operand has 155 places, 161 transitions, 1634 flow. Second operand 10 states and 2001 transitions. [2021-03-24 11:15:24,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 209 transitions, 2419 flow [2021-03-24 11:15:24,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 209 transitions, 2341 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-03-24 11:15:24,440 INFO L241 Difference]: Finished difference. Result has 155 places, 162 transitions, 1652 flow [2021-03-24 11:15:24,440 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1558, 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=1652, PETRI_PLACES=155, PETRI_TRANSITIONS=162} [2021-03-24 11:15:24,440 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 89 predicate places. [2021-03-24 11:15:24,440 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 162 transitions, 1652 flow [2021-03-24 11:15:24,440 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 11:15:24,440 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:24,441 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 11:15:24,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 11:15:24,441 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 11:15:24,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:24,441 INFO L82 PathProgramCache]: Analyzing trace with hash -2206820, now seen corresponding path program 14 times [2021-03-24 11:15:24,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:24,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874589985] [2021-03-24 11:15:24,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:24,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:24,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:24,505 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:24,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:24,511 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 11:15:24,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:24,518 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 11:15:24,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:24,528 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:24,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:24,538 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 11:15:24,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:24,548 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:24,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:24,559 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:24,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:24,572 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:15:24,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:24,599 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:24,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:24,635 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 11:15:24,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:15:24,649 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 11:15:24,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:24,650 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:24,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:24,664 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 11:15:24,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:24,665 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 11:15:24,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:24,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:24,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:15:24,688 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 11:15:24,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874589985] [2021-03-24 11:15:24,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:24,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 11:15:24,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125023559] [2021-03-24 11:15:24,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 11:15:24,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:24,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 11:15:24,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-24 11:15:24,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 278 [2021-03-24 11:15:24,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 162 transitions, 1652 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 11:15:24,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:24,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 278 [2021-03-24 11:15:24,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:25,437 INFO L129 PetriNetUnfolder]: 727/2732 cut-off events. [2021-03-24 11:15:25,437 INFO L130 PetriNetUnfolder]: For 16620/16692 co-relation queries the response was YES. [2021-03-24 11:15:25,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13241 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 13202. Up to 1534 conditions per place. [2021-03-24 11:15:25,453 INFO L132 encePairwiseOnDemand]: 266/278 looper letters, 145 selfloop transitions, 43 changer transitions 3/227 dead transitions. [2021-03-24 11:15:25,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 227 transitions, 2622 flow [2021-03-24 11:15:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 11:15:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 11:15:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1521 transitions. [2021-03-24 11:15:25,455 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45593525179856115 [2021-03-24 11:15:25,455 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1521 transitions. [2021-03-24 11:15:25,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1521 transitions. [2021-03-24 11:15:25,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:25,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1521 transitions. [2021-03-24 11:15:25,457 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 11:15:25,459 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 11:15:25,459 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 11:15:25,459 INFO L185 Difference]: Start difference. First operand has 155 places, 162 transitions, 1652 flow. Second operand 12 states and 1521 transitions. [2021-03-24 11:15:25,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 227 transitions, 2622 flow [2021-03-24 11:15:25,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 227 transitions, 2560 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-24 11:15:25,491 INFO L241 Difference]: Finished difference. Result has 162 places, 168 transitions, 1775 flow [2021-03-24 11:15:25,491 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1594, 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=1775, PETRI_PLACES=162, PETRI_TRANSITIONS=168} [2021-03-24 11:15:25,491 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 96 predicate places. [2021-03-24 11:15:25,491 INFO L480 AbstractCegarLoop]: Abstraction has has 162 places, 168 transitions, 1775 flow [2021-03-24 11:15:25,492 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 11:15:25,492 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:25,492 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 11:15:25,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 11:15:25,492 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 11:15:25,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:25,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1720873796, now seen corresponding path program 15 times [2021-03-24 11:15:25,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:25,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226376410] [2021-03-24 11:15:25,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:25,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:25,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:25,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:25,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:15:25,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:25,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:15:25,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:25,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:15:25,592 INFO L142 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-03-24 11:15:25,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:15:25,614 INFO L142 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-03-24 11:15:25,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:15:25,638 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.0 percent of original size [2021-03-24 11:15:25,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:25,670 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 11:15:25,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:25,672 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:25,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:25,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:25,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:25,674 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 11:15:25,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226376410] [2021-03-24 11:15:25,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:25,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:15:25,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581868650] [2021-03-24 11:15:25,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 11:15:25,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:25,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 11:15:25,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-24 11:15:25,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 278 [2021-03-24 11:15:25,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 168 transitions, 1775 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 11:15:25,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:25,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 278 [2021-03-24 11:15:25,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:26,090 INFO L129 PetriNetUnfolder]: 104/1247 cut-off events. [2021-03-24 11:15:26,090 INFO L130 PetriNetUnfolder]: For 8920/9082 co-relation queries the response was YES. [2021-03-24 11:15:26,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5790 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 5748. Up to 269 conditions per place. [2021-03-24 11:15:26,097 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 66 selfloop transitions, 36 changer transitions 0/178 dead transitions. [2021-03-24 11:15:26,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 178 transitions, 2086 flow [2021-03-24 11:15:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:15:26,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:15:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2065 transitions. [2021-03-24 11:15:26,099 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7428057553956835 [2021-03-24 11:15:26,099 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2065 transitions. [2021-03-24 11:15:26,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2065 transitions. [2021-03-24 11:15:26,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:26,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2065 transitions. [2021-03-24 11:15:26,101 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 11:15:26,102 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 11:15:26,103 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 11:15:26,103 INFO L185 Difference]: Start difference. First operand has 162 places, 168 transitions, 1775 flow. Second operand 10 states and 2065 transitions. [2021-03-24 11:15:26,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 178 transitions, 2086 flow [2021-03-24 11:15:26,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 178 transitions, 1815 flow, removed 59 selfloop flow, removed 15 redundant places. [2021-03-24 11:15:26,125 INFO L241 Difference]: Finished difference. Result has 157 places, 160 transitions, 1542 flow [2021-03-24 11:15:26,125 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1428, 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=1542, PETRI_PLACES=157, PETRI_TRANSITIONS=160} [2021-03-24 11:15:26,126 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 91 predicate places. [2021-03-24 11:15:26,126 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 160 transitions, 1542 flow [2021-03-24 11:15:26,126 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 11:15:26,126 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:26,126 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 11:15:26,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 11:15:26,126 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 11:15:26,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:26,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1228684063, now seen corresponding path program 1 times [2021-03-24 11:15:26,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:26,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718661187] [2021-03-24 11:15:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:26,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:26,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:26,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:26,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:26,231 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:26,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:26,248 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:15:26,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:15:26,270 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 11:15:26,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:15:26,305 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:15:26,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:15:26,350 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:15:26,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:26,368 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:15:26,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:26,386 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:15:26,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:15:26,406 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:15:26,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:26,424 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:15:26,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:26,442 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:15:26,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:26,461 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 11:15:26,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:26,482 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 11:15:26,482 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 11:15:26,519 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:15:26,520 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 11:15:26,535 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.1 percent of original size [2021-03-24 11:15:26,535 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 11:15:26,570 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 11:15:26,571 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 11:15:26,620 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:15:26,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:15:26,643 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:15:26,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:15:26,658 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:15:26,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:15:26,679 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:15:26,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:15:26,701 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:15:26,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:26,726 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:26,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:26,748 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:26,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:26,749 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:26,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:26,769 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 11:15:26,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718661187] [2021-03-24 11:15:26,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:26,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:26,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243147355] [2021-03-24 11:15:26,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:26,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:26,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:26,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:26,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:26,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 160 transitions, 1542 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 11:15:26,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:26,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:26,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:27,689 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-03-24 11:15:27,927 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2021-03-24 11:15:28,811 INFO L129 PetriNetUnfolder]: 597/2228 cut-off events. [2021-03-24 11:15:28,812 INFO L130 PetriNetUnfolder]: For 11845/11867 co-relation queries the response was YES. [2021-03-24 11:15:28,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10575 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 10538. Up to 1716 conditions per place. [2021-03-24 11:15:28,823 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 165 selfloop transitions, 82 changer transitions 7/264 dead transitions. [2021-03-24 11:15:28,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 264 transitions, 3249 flow [2021-03-24 11:15:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:15:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:15:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2611 transitions. [2021-03-24 11:15:28,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4943203332071185 [2021-03-24 11:15:28,826 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2611 transitions. [2021-03-24 11:15:28,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2611 transitions. [2021-03-24 11:15:28,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:28,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2611 transitions. [2021-03-24 11:15:28,828 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 11:15:28,831 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 11:15:28,831 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 11:15:28,831 INFO L185 Difference]: Start difference. First operand has 157 places, 160 transitions, 1542 flow. Second operand 19 states and 2611 transitions. [2021-03-24 11:15:28,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 264 transitions, 3249 flow [2021-03-24 11:15:28,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 264 transitions, 3112 flow, removed 24 selfloop flow, removed 8 redundant places. [2021-03-24 11:15:28,859 INFO L241 Difference]: Finished difference. Result has 178 places, 219 transitions, 2423 flow [2021-03-24 11:15:28,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1452, 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=2423, PETRI_PLACES=178, PETRI_TRANSITIONS=219} [2021-03-24 11:15:28,859 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 112 predicate places. [2021-03-24 11:15:28,859 INFO L480 AbstractCegarLoop]: Abstraction has has 178 places, 219 transitions, 2423 flow [2021-03-24 11:15:28,860 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 11:15:28,860 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:28,860 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 11:15:28,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-24 11:15:28,860 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 11:15:28,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:28,860 INFO L82 PathProgramCache]: Analyzing trace with hash -310237115, now seen corresponding path program 2 times [2021-03-24 11:15:28,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:28,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796340306] [2021-03-24 11:15:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:28,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:28,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:28,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:28,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:28,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:28,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:28,964 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:15:28,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:28,981 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:15:28,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:29,010 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:15:29,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:15:29,046 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:29,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:29,062 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:15:29,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:29,078 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-03-24 11:15:29,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:29,109 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:29,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:29,138 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:29,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:29,168 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:29,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:29,199 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-24 11:15:29,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:15:29,233 INFO L142 QuantifierPusher]: treesize reduction 71, result has 43.2 percent of original size [2021-03-24 11:15:29,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:15:29,275 INFO L142 QuantifierPusher]: treesize reduction 71, result has 40.8 percent of original size [2021-03-24 11:15:29,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:15:29,292 INFO L142 QuantifierPusher]: treesize reduction 71, result has 37.7 percent of original size [2021-03-24 11:15:29,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:29,332 INFO L142 QuantifierPusher]: treesize reduction 72, result has 44.6 percent of original size [2021-03-24 11:15:29,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:15:29,380 INFO L142 QuantifierPusher]: treesize reduction 69, result has 45.7 percent of original size [2021-03-24 11:15:29,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:15:29,429 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:15:29,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:29,453 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:15:29,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:29,472 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:15:29,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:29,473 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:15:29,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:15:29,506 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:15:29,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:29,529 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:29,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:29,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:29,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:29,571 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 11:15:29,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796340306] [2021-03-24 11:15:29,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:29,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:29,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568681084] [2021-03-24 11:15:29,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:29,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:29,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:29,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:29,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:29,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 219 transitions, 2423 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 11:15:29,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:29,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:29,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:30,311 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-03-24 11:15:30,544 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-24 11:15:30,815 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2021-03-24 11:15:31,815 INFO L129 PetriNetUnfolder]: 639/2353 cut-off events. [2021-03-24 11:15:31,815 INFO L130 PetriNetUnfolder]: For 14762/14784 co-relation queries the response was YES. [2021-03-24 11:15:31,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12213 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 22279 event pairs, 384 based on Foata normal form. 8/2330 useless extension candidates. Maximal degree in co-relation 12165. Up to 1818 conditions per place. [2021-03-24 11:15:31,832 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 190 selfloop transitions, 81 changer transitions 18/299 dead transitions. [2021-03-24 11:15:31,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 299 transitions, 3951 flow [2021-03-24 11:15:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:31,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2481 transitions. [2021-03-24 11:15:31,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4958033573141487 [2021-03-24 11:15:31,835 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2481 transitions. [2021-03-24 11:15:31,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2481 transitions. [2021-03-24 11:15:31,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:31,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2481 transitions. [2021-03-24 11:15:31,837 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 11:15:31,840 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 11:15:31,840 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 11:15:31,840 INFO L185 Difference]: Start difference. First operand has 178 places, 219 transitions, 2423 flow. Second operand 18 states and 2481 transitions. [2021-03-24 11:15:31,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 299 transitions, 3951 flow [2021-03-24 11:15:31,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 299 transitions, 3879 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-03-24 11:15:31,891 INFO L241 Difference]: Finished difference. Result has 194 places, 250 transitions, 3037 flow [2021-03-24 11:15:31,891 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2361, 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=3037, PETRI_PLACES=194, PETRI_TRANSITIONS=250} [2021-03-24 11:15:31,892 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 128 predicate places. [2021-03-24 11:15:31,892 INFO L480 AbstractCegarLoop]: Abstraction has has 194 places, 250 transitions, 3037 flow [2021-03-24 11:15:31,892 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 11:15:31,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:31,892 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 11:15:31,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-24 11:15:31,892 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 11:15:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:31,893 INFO L82 PathProgramCache]: Analyzing trace with hash -824040021, now seen corresponding path program 3 times [2021-03-24 11:15:31,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:31,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842948468] [2021-03-24 11:15:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:31,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:31,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:31,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:31,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:32,001 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:32,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:32,026 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:15:32,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:32,044 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:15:32,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:32,076 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:15:32,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:15:32,118 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:15:32,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:32,145 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:15:32,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:15:32,172 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:15:32,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:15:32,211 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:15:32,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:15:32,247 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:15:32,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:15:32,282 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:15:32,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:15:32,320 INFO L142 QuantifierPusher]: treesize reduction 40, result has 64.6 percent of original size [2021-03-24 11:15:32,321 INFO L147 QuantifierPusher]: treesize reduction 5, result has 93.2 percent of original size 68 [2021-03-24 11:15:32,362 INFO L142 QuantifierPusher]: treesize reduction 40, result has 63.3 percent of original size [2021-03-24 11:15:32,362 INFO L147 QuantifierPusher]: treesize reduction 5, result has 92.8 percent of original size 64 [2021-03-24 11:15:32,406 INFO L142 QuantifierPusher]: treesize reduction 40, result has 61.5 percent of original size [2021-03-24 11:15:32,406 INFO L147 QuantifierPusher]: treesize reduction 5, result has 92.2 percent of original size 59 [2021-03-24 11:15:32,425 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.3 percent of original size [2021-03-24 11:15:32,426 INFO L147 QuantifierPusher]: treesize reduction 5, result has 91.4 percent of original size 53 [2021-03-24 11:15:32,466 INFO L142 QuantifierPusher]: treesize reduction 40, result has 61.5 percent of original size [2021-03-24 11:15:32,466 INFO L147 QuantifierPusher]: treesize reduction 5, result has 92.2 percent of original size 59 [2021-03-24 11:15:32,507 INFO L142 QuantifierPusher]: treesize reduction 28, result has 47.2 percent of original size [2021-03-24 11:15:32,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:32,530 INFO L142 QuantifierPusher]: treesize reduction 24, result has 51.0 percent of original size [2021-03-24 11:15:32,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:32,532 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.1 percent of original size [2021-03-24 11:15:32,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:32,568 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.1 percent of original size [2021-03-24 11:15:32,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:32,590 INFO L142 QuantifierPusher]: treesize reduction 41, result has 43.8 percent of original size [2021-03-24 11:15:32,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:32,623 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:15:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:32,659 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:32,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:32,681 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:32,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:32,702 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 11:15:32,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842948468] [2021-03-24 11:15:32,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:32,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:32,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648843392] [2021-03-24 11:15:32,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:32,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:32,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:32,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:32,704 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:32,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 250 transitions, 3037 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 11:15:32,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:32,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:32,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:33,463 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-24 11:15:33,698 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-03-24 11:15:33,924 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-24 11:15:34,843 INFO L129 PetriNetUnfolder]: 679/2463 cut-off events. [2021-03-24 11:15:34,843 INFO L130 PetriNetUnfolder]: For 18955/18977 co-relation queries the response was YES. [2021-03-24 11:15:34,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13762 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 23430 event pairs, 412 based on Foata normal form. 4/2441 useless extension candidates. Maximal degree in co-relation 13708. Up to 1765 conditions per place. [2021-03-24 11:15:34,865 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 218 selfloop transitions, 75 changer transitions 26/329 dead transitions. [2021-03-24 11:15:34,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 329 transitions, 4592 flow [2021-03-24 11:15:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2477 transitions. [2021-03-24 11:15:34,869 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49500399680255797 [2021-03-24 11:15:34,869 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2477 transitions. [2021-03-24 11:15:34,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2477 transitions. [2021-03-24 11:15:34,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:34,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2477 transitions. [2021-03-24 11:15:34,871 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 11:15:34,874 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 11:15:34,874 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 11:15:34,874 INFO L185 Difference]: Start difference. First operand has 194 places, 250 transitions, 3037 flow. Second operand 18 states and 2477 transitions. [2021-03-24 11:15:34,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 329 transitions, 4592 flow [2021-03-24 11:15:34,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 329 transitions, 4517 flow, removed 26 selfloop flow, removed 6 redundant places. [2021-03-24 11:15:34,954 INFO L241 Difference]: Finished difference. Result has 209 places, 269 transitions, 3453 flow [2021-03-24 11:15:34,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2963, 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=3453, PETRI_PLACES=209, PETRI_TRANSITIONS=269} [2021-03-24 11:15:34,955 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 143 predicate places. [2021-03-24 11:15:34,955 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 269 transitions, 3453 flow [2021-03-24 11:15:34,955 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 11:15:34,955 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:34,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:15:34,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-24 11:15:34,955 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 11:15:34,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:34,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1582478689, now seen corresponding path program 4 times [2021-03-24 11:15:34,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:34,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857478536] [2021-03-24 11:15:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:35,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:35,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:35,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:35,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:35,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:35,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:35,083 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:15:35,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:35,105 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:15:35,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:35,141 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:15:35,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:15:35,181 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:35,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:35,196 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:15:35,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:35,222 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:15:35,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:35,252 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:15:35,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:35,285 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:15:35,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:35,327 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:15:35,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:35,357 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:15:35,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:35,392 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:15:35,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:35,417 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:15:35,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:35,449 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:15:35,450 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 11:15:35,490 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:15:35,491 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:15:35,533 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:15:35,533 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:15:35,588 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:15:35,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:35,614 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:15:35,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:35,633 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:15:35,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:35,635 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:15:35,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:15:35,670 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:15:35,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:35,694 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:35,716 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:35,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:15:35,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857478536] [2021-03-24 11:15:35,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:35,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:35,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012196896] [2021-03-24 11:15:35,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:35,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:35,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:35,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:35,741 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:35,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 269 transitions, 3453 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 11:15:35,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:35,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:35,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:36,521 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-03-24 11:15:36,754 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-03-24 11:15:36,935 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-03-24 11:15:37,116 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 11:15:37,970 INFO L129 PetriNetUnfolder]: 661/2429 cut-off events. [2021-03-24 11:15:37,971 INFO L130 PetriNetUnfolder]: For 21117/21139 co-relation queries the response was YES. [2021-03-24 11:15:37,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14152 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 23193 event pairs, 396 based on Foata normal form. 7/2401 useless extension candidates. Maximal degree in co-relation 14092. Up to 1951 conditions per place. [2021-03-24 11:15:37,985 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 207 selfloop transitions, 68 changer transitions 18/303 dead transitions. [2021-03-24 11:15:37,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 303 transitions, 4441 flow [2021-03-24 11:15:37,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 11:15:37,987 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 11:15:37,987 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 11:15:37,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 11:15:37,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:37,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 11:15:37,989 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 11:15:37,992 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 11:15:37,992 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 11:15:37,992 INFO L185 Difference]: Start difference. First operand has 209 places, 269 transitions, 3453 flow. Second operand 18 states and 2472 transitions. [2021-03-24 11:15:37,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 303 transitions, 4441 flow [2021-03-24 11:15:38,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 303 transitions, 4340 flow, removed 26 selfloop flow, removed 10 redundant places. [2021-03-24 11:15:38,050 INFO L241 Difference]: Finished difference. Result has 218 places, 272 transitions, 3564 flow [2021-03-24 11:15:38,051 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3357, 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=3564, PETRI_PLACES=218, PETRI_TRANSITIONS=272} [2021-03-24 11:15:38,051 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 152 predicate places. [2021-03-24 11:15:38,051 INFO L480 AbstractCegarLoop]: Abstraction has has 218 places, 272 transitions, 3564 flow [2021-03-24 11:15:38,051 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 11:15:38,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:38,051 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 11:15:38,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-24 11:15:38,051 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 11:15:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:38,052 INFO L82 PathProgramCache]: Analyzing trace with hash -2044572807, now seen corresponding path program 5 times [2021-03-24 11:15:38,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:38,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217694630] [2021-03-24 11:15:38,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:38,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:38,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:38,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:38,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:38,134 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:38,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:38,151 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:15:38,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:15:38,173 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 11:15:38,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:15:38,208 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.7 percent of original size [2021-03-24 11:15:38,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:15:38,252 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:15:38,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:38,278 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:15:38,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:15:38,302 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:15:38,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:15:38,335 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:15:38,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:15:38,368 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:15:38,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:38,398 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:15:38,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:38,432 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 11:15:38,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:15:38,473 INFO L142 QuantifierPusher]: treesize reduction 54, result has 60.0 percent of original size [2021-03-24 11:15:38,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 11:15:38,527 INFO L142 QuantifierPusher]: treesize reduction 54, result has 58.5 percent of original size [2021-03-24 11:15:38,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 11:15:38,545 INFO L142 QuantifierPusher]: treesize reduction 54, result has 58.1 percent of original size [2021-03-24 11:15:38,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 11:15:38,598 INFO L142 QuantifierPusher]: treesize reduction 59, result has 53.9 percent of original size [2021-03-24 11:15:38,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:15:38,650 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.7 percent of original size [2021-03-24 11:15:38,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 11:15:38,708 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:15:38,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:38,744 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:15:38,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:38,764 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:15:38,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:38,797 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:15:38,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:38,838 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:38,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:38,861 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:38,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:38,870 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:38,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:38,893 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 11:15:38,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217694630] [2021-03-24 11:15:38,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:38,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:38,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81726426] [2021-03-24 11:15:38,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:38,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:38,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:38,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:38,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:38,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 272 transitions, 3564 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 11:15:38,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:38,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:38,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:39,708 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-24 11:15:39,896 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-03-24 11:15:40,159 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-03-24 11:15:40,460 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2021-03-24 11:15:41,236 INFO L129 PetriNetUnfolder]: 666/2446 cut-off events. [2021-03-24 11:15:41,237 INFO L130 PetriNetUnfolder]: For 21887/21909 co-relation queries the response was YES. [2021-03-24 11:15:41,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14371 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 23423 event pairs, 402 based on Foata normal form. 7/2419 useless extension candidates. Maximal degree in co-relation 14308. Up to 1941 conditions per place. [2021-03-24 11:15:41,256 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 207 selfloop transitions, 70 changer transitions 26/313 dead transitions. [2021-03-24 11:15:41,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 313 transitions, 4656 flow [2021-03-24 11:15:41,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:41,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2475 transitions. [2021-03-24 11:15:41,259 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49460431654676257 [2021-03-24 11:15:41,259 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2475 transitions. [2021-03-24 11:15:41,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2475 transitions. [2021-03-24 11:15:41,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:41,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2475 transitions. [2021-03-24 11:15:41,261 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 11:15:41,263 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 11:15:41,263 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 11:15:41,263 INFO L185 Difference]: Start difference. First operand has 218 places, 272 transitions, 3564 flow. Second operand 18 states and 2475 transitions. [2021-03-24 11:15:41,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 313 transitions, 4656 flow [2021-03-24 11:15:41,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 313 transitions, 4515 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-24 11:15:41,334 INFO L241 Difference]: Finished difference. Result has 223 places, 273 transitions, 3616 flow [2021-03-24 11:15:41,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3431, 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=3616, PETRI_PLACES=223, PETRI_TRANSITIONS=273} [2021-03-24 11:15:41,334 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 157 predicate places. [2021-03-24 11:15:41,334 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 273 transitions, 3616 flow [2021-03-24 11:15:41,335 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 11:15:41,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:41,335 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 11:15:41,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-24 11:15:41,335 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 11:15:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:41,335 INFO L82 PathProgramCache]: Analyzing trace with hash -295565105, now seen corresponding path program 6 times [2021-03-24 11:15:41,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:41,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457188693] [2021-03-24 11:15:41,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:41,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:41,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:41,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:41,417 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:41,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:41,434 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:15:41,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:41,459 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:15:41,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:15:41,497 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:15:41,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:15:41,542 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:15:41,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:41,561 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:15:41,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:41,576 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:15:41,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:41,615 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:15:41,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:41,635 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:15:41,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:41,664 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:15:41,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:15:41,679 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:15:41,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:15:41,706 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:15:41,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:15:41,724 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:15:41,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:41,749 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:15:41,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:41,766 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:15:41,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:15:41,788 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:15:41,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:41,811 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:15:41,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:15:41,832 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:15:41,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:15:41,854 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:15:41,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:15:41,870 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:15:41,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:41,890 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:15:41,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:15:41,913 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:15:41,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:41,933 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:15:41,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:15:41,934 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:15:41,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:15:41,952 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 11:15:41,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457188693] [2021-03-24 11:15:41,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:41,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:15:41,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788017413] [2021-03-24 11:15:41,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:15:41,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:41,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:15:41,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:15:41,955 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:15:41,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 273 transitions, 3616 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 11:15:41,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:41,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:15:41,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:44,056 INFO L129 PetriNetUnfolder]: 652/2410 cut-off events. [2021-03-24 11:15:44,056 INFO L130 PetriNetUnfolder]: For 21979/21999 co-relation queries the response was YES. [2021-03-24 11:15:44,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14277 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 23026 event pairs, 395 based on Foata normal form. 9/2385 useless extension candidates. Maximal degree in co-relation 14212. Up to 1947 conditions per place. [2021-03-24 11:15:44,072 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 212 selfloop transitions, 76 changer transitions 27/321 dead transitions. [2021-03-24 11:15:44,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 321 transitions, 4823 flow [2021-03-24 11:15:44,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:44,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1617 transitions. [2021-03-24 11:15:44,074 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32314148681055155 [2021-03-24 11:15:44,074 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1617 transitions. [2021-03-24 11:15:44,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1617 transitions. [2021-03-24 11:15:44,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:44,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1617 transitions. [2021-03-24 11:15:44,076 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 11:15:44,078 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 11:15:44,078 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 11:15:44,078 INFO L185 Difference]: Start difference. First operand has 223 places, 273 transitions, 3616 flow. Second operand 18 states and 1617 transitions. [2021-03-24 11:15:44,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 321 transitions, 4823 flow [2021-03-24 11:15:44,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 321 transitions, 4652 flow, removed 14 selfloop flow, removed 13 redundant places. [2021-03-24 11:15:44,153 INFO L241 Difference]: Finished difference. Result has 229 places, 288 transitions, 3895 flow [2021-03-24 11:15:44,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3461, 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=3895, PETRI_PLACES=229, PETRI_TRANSITIONS=288} [2021-03-24 11:15:44,154 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 163 predicate places. [2021-03-24 11:15:44,154 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 288 transitions, 3895 flow [2021-03-24 11:15:44,154 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 11:15:44,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:44,154 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 11:15:44,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-24 11:15:44,154 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 11:15:44,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:44,155 INFO L82 PathProgramCache]: Analyzing trace with hash -160437815, now seen corresponding path program 7 times [2021-03-24 11:15:44,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:44,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817712448] [2021-03-24 11:15:44,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:44,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:44,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:44,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:44,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:44,247 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:44,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:44,264 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:15:44,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:44,281 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:15:44,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:44,321 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:15:44,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:15:44,370 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:44,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:44,384 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:15:44,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:44,409 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:15:44,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:44,442 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:15:44,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:44,478 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:15:44,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:44,517 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:15:44,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:44,556 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:15:44,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:44,568 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:15:44,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:44,608 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:15:44,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:44,636 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:15:44,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:44,671 INFO L142 QuantifierPusher]: treesize reduction 38, result has 59.1 percent of original size [2021-03-24 11:15:44,672 INFO L147 QuantifierPusher]: treesize reduction 7, result has 87.3 percent of original size 48 [2021-03-24 11:15:44,713 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:15:44,713 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:15:44,749 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:15:44,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:44,778 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:15:44,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:44,796 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:15:44,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:44,798 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:15:44,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:15:44,842 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:15:44,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:44,867 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:44,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:44,891 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:44,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:44,913 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 11:15:44,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817712448] [2021-03-24 11:15:44,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:44,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:44,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238889630] [2021-03-24 11:15:44,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:44,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:44,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:44,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:44,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:44,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 288 transitions, 3895 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 11:15:44,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:44,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:44,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:47,145 INFO L129 PetriNetUnfolder]: 687/2489 cut-off events. [2021-03-24 11:15:47,145 INFO L130 PetriNetUnfolder]: For 23610/23636 co-relation queries the response was YES. [2021-03-24 11:15:47,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14910 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 23822 event pairs, 378 based on Foata normal form. 12/2463 useless extension candidates. Maximal degree in co-relation 14841. Up to 1847 conditions per place. [2021-03-24 11:15:47,177 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 250 selfloop transitions, 87 changer transitions 19/366 dead transitions. [2021-03-24 11:15:47,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 366 transitions, 5655 flow [2021-03-24 11:15:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:47,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2485 transitions. [2021-03-24 11:15:47,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4966027178257394 [2021-03-24 11:15:47,180 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2485 transitions. [2021-03-24 11:15:47,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2485 transitions. [2021-03-24 11:15:47,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:47,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2485 transitions. [2021-03-24 11:15:47,183 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 11:15:47,187 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 11:15:47,187 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 11:15:47,187 INFO L185 Difference]: Start difference. First operand has 229 places, 288 transitions, 3895 flow. Second operand 18 states and 2485 transitions. [2021-03-24 11:15:47,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 366 transitions, 5655 flow [2021-03-24 11:15:47,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 366 transitions, 5549 flow, removed 20 selfloop flow, removed 11 redundant places. [2021-03-24 11:15:47,314 INFO L241 Difference]: Finished difference. Result has 235 places, 306 transitions, 4310 flow [2021-03-24 11:15:47,315 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3793, 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=4310, PETRI_PLACES=235, PETRI_TRANSITIONS=306} [2021-03-24 11:15:47,315 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 169 predicate places. [2021-03-24 11:15:47,315 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 306 transitions, 4310 flow [2021-03-24 11:15:47,316 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 11:15:47,316 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:47,316 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 11:15:47,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-24 11:15:47,316 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 11:15:47,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:47,316 INFO L82 PathProgramCache]: Analyzing trace with hash -48256827, now seen corresponding path program 8 times [2021-03-24 11:15:47,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:47,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031311830] [2021-03-24 11:15:47,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:47,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:47,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:47,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:47,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:47,418 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:47,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:47,438 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:15:47,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:47,459 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:15:47,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:47,494 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:15:47,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:15:47,530 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:47,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:47,548 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:15:47,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:47,573 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:15:47,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:47,606 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:15:47,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:47,642 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:15:47,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:47,675 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:15:47,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:47,713 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:15:47,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:47,752 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:15:47,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:47,764 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 11:15:47,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:15:47,795 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:15:47,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:47,827 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:15:47,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:47,858 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-24 11:15:47,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:47,889 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:15:47,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:47,890 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:15:47,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:47,922 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:15:47,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:47,938 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:15:47,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:15:47,978 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:15:47,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:48,008 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:48,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:48,027 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:48,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:48,046 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 11:15:48,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031311830] [2021-03-24 11:15:48,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:48,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:48,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13725282] [2021-03-24 11:15:48,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:48,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:48,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:48,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:48,049 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:48,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 306 transitions, 4310 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 11:15:48,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:48,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:48,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:50,193 INFO L129 PetriNetUnfolder]: 734/2620 cut-off events. [2021-03-24 11:15:50,193 INFO L130 PetriNetUnfolder]: For 28205/28234 co-relation queries the response was YES. [2021-03-24 11:15:50,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16463 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 25172 event pairs, 428 based on Foata normal form. 9/2591 useless extension candidates. Maximal degree in co-relation 16392. Up to 1984 conditions per place. [2021-03-24 11:15:50,215 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 249 selfloop transitions, 84 changer transitions 26/369 dead transitions. [2021-03-24 11:15:50,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 369 transitions, 5848 flow [2021-03-24 11:15:50,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2481 transitions. [2021-03-24 11:15:50,233 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4958033573141487 [2021-03-24 11:15:50,233 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2481 transitions. [2021-03-24 11:15:50,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2481 transitions. [2021-03-24 11:15:50,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:50,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2481 transitions. [2021-03-24 11:15:50,235 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 11:15:50,237 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 11:15:50,238 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 11:15:50,238 INFO L185 Difference]: Start difference. First operand has 235 places, 306 transitions, 4310 flow. Second operand 18 states and 2481 transitions. [2021-03-24 11:15:50,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 369 transitions, 5848 flow [2021-03-24 11:15:50,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 369 transitions, 5719 flow, removed 38 selfloop flow, removed 8 redundant places. [2021-03-24 11:15:50,415 INFO L241 Difference]: Finished difference. Result has 247 places, 321 transitions, 4630 flow [2021-03-24 11:15:50,415 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4183, 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=4630, PETRI_PLACES=247, PETRI_TRANSITIONS=321} [2021-03-24 11:15:50,415 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 181 predicate places. [2021-03-24 11:15:50,415 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 321 transitions, 4630 flow [2021-03-24 11:15:50,416 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 11:15:50,416 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:50,416 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, 1, 1] [2021-03-24 11:15:50,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-24 11:15:50,416 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 11:15:50,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:50,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1580601197, now seen corresponding path program 9 times [2021-03-24 11:15:50,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:50,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389552139] [2021-03-24 11:15:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:50,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:50,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:50,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:50,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:50,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:50,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:50,491 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.9 percent of original size [2021-03-24 11:15:50,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:15:50,511 INFO L142 QuantifierPusher]: treesize reduction 36, result has 56.1 percent of original size [2021-03-24 11:15:50,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:15:50,542 INFO L142 QuantifierPusher]: treesize reduction 28, result has 69.6 percent of original size [2021-03-24 11:15:50,542 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:15:50,584 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 11:15:50,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:50,602 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 11:15:50,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:50,620 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:15:50,621 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:15:50,653 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:15:50,654 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:15:50,687 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:15:50,688 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:15:50,725 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:15:50,726 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:15:50,738 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:15:50,739 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:15:50,769 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:15:50,770 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:15:50,800 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:15:50,800 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:15:50,832 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:15:50,833 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:15:50,867 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 11:15:50,867 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:15:50,901 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.2 percent of original size [2021-03-24 11:15:50,901 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:15:50,934 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:15:50,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:50,955 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:15:50,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:15:50,972 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:15:50,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:50,972 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:15:50,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:50,993 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:15:50,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:51,015 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:15:51,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:51,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:51,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:51,054 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 11:15:51,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389552139] [2021-03-24 11:15:51,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:51,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:51,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069547799] [2021-03-24 11:15:51,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:51,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:51,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:51,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:51,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:51,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 321 transitions, 4630 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 11:15:51,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:51,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:51,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:52,661 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2021-03-24 11:15:53,124 INFO L129 PetriNetUnfolder]: 737/2649 cut-off events. [2021-03-24 11:15:53,124 INFO L130 PetriNetUnfolder]: For 29735/29768 co-relation queries the response was YES. [2021-03-24 11:15:53,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16838 conditions, 2649 events. 737/2649 cut-off events. For 29735/29768 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 16763. Up to 1681 conditions per place. [2021-03-24 11:15:53,145 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 227 selfloop transitions, 149 changer transitions 21/407 dead transitions. [2021-03-24 11:15:53,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 407 transitions, 6714 flow [2021-03-24 11:15:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:53,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2486 transitions. [2021-03-24 11:15:53,148 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4968025579536371 [2021-03-24 11:15:53,148 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2486 transitions. [2021-03-24 11:15:53,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2486 transitions. [2021-03-24 11:15:53,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:53,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2486 transitions. [2021-03-24 11:15:53,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 138.11111111111111) internal successors, (2486), 18 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:15:53,152 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 11:15:53,152 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 11:15:53,152 INFO L185 Difference]: Start difference. First operand has 247 places, 321 transitions, 4630 flow. Second operand 18 states and 2486 transitions. [2021-03-24 11:15:53,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 407 transitions, 6714 flow [2021-03-24 11:15:53,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 407 transitions, 6508 flow, removed 34 selfloop flow, removed 12 redundant places. [2021-03-24 11:15:53,254 INFO L241 Difference]: Finished difference. Result has 253 places, 344 transitions, 5252 flow [2021-03-24 11:15:53,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4455, 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=5252, PETRI_PLACES=253, PETRI_TRANSITIONS=344} [2021-03-24 11:15:53,255 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 187 predicate places. [2021-03-24 11:15:53,255 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 344 transitions, 5252 flow [2021-03-24 11:15:53,255 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 11:15:53,255 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:53,255 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 11:15:53,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-24 11:15:53,256 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 11:15:53,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:53,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1802012953, now seen corresponding path program 10 times [2021-03-24 11:15:53,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:53,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138883461] [2021-03-24 11:15:53,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:53,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:53,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:53,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:53,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:53,333 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:53,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:53,350 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:15:53,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:53,369 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-03-24 11:15:53,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:15:53,412 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.3 percent of original size [2021-03-24 11:15:53,413 INFO L147 QuantifierPusher]: treesize reduction 8, result has 88.7 percent of original size 63 [2021-03-24 11:15:53,466 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.8 percent of original size [2021-03-24 11:15:53,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:15:53,505 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size [2021-03-24 11:15:53,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:15:53,542 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 11:15:53,543 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:15:53,585 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 11:15:53,586 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:15:53,630 INFO L142 QuantifierPusher]: treesize reduction 19, result has 71.6 percent of original size [2021-03-24 11:15:53,631 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 11:15:53,672 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 11:15:53,673 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:15:53,686 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:15:53,686 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:15:53,697 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:15:53,698 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:15:53,728 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 11:15:53,728 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:15:53,758 INFO L142 QuantifierPusher]: treesize reduction 46, result has 47.7 percent of original size [2021-03-24 11:15:53,758 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size 37 [2021-03-24 11:15:53,791 INFO L142 QuantifierPusher]: treesize reduction 48, result has 42.9 percent of original size [2021-03-24 11:15:53,791 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size 31 [2021-03-24 11:15:53,824 INFO L142 QuantifierPusher]: treesize reduction 46, result has 47.7 percent of original size [2021-03-24 11:15:53,824 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size 37 [2021-03-24 11:15:53,859 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:15:53,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:53,879 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:15:53,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:15:53,894 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:15:53,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:53,895 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:15:53,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:53,915 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:15:53,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:53,936 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:15:53,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:53,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:53,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:53,973 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 11:15:53,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138883461] [2021-03-24 11:15:53,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:53,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:15:53,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982577597] [2021-03-24 11:15:53,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:15:53,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:53,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:15:53,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:15:53,975 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:53,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 344 transitions, 5252 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 11:15:53,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:53,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:53,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:54,661 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 11:15:54,826 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-03-24 11:15:55,092 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-03-24 11:15:55,336 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-03-24 11:15:56,143 INFO L129 PetriNetUnfolder]: 714/2582 cut-off events. [2021-03-24 11:15:56,143 INFO L130 PetriNetUnfolder]: For 32212/32247 co-relation queries the response was YES. [2021-03-24 11:15:56,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17130 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 24750 event pairs, 376 based on Foata normal form. 20/2561 useless extension candidates. Maximal degree in co-relation 17053. Up to 1967 conditions per place. [2021-03-24 11:15:56,165 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 266 selfloop transitions, 83 changer transitions 26/385 dead transitions. [2021-03-24 11:15:56,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 385 transitions, 6569 flow [2021-03-24 11:15:56,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:56,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2475 transitions. [2021-03-24 11:15:56,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49460431654676257 [2021-03-24 11:15:56,167 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2475 transitions. [2021-03-24 11:15:56,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2475 transitions. [2021-03-24 11:15:56,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:56,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2475 transitions. [2021-03-24 11:15:56,169 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 11:15:56,172 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 11:15:56,172 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 11:15:56,172 INFO L185 Difference]: Start difference. First operand has 253 places, 344 transitions, 5252 flow. Second operand 18 states and 2475 transitions. [2021-03-24 11:15:56,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 385 transitions, 6569 flow [2021-03-24 11:15:56,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 385 transitions, 6345 flow, removed 49 selfloop flow, removed 10 redundant places. [2021-03-24 11:15:56,289 INFO L241 Difference]: Finished difference. Result has 263 places, 350 transitions, 5333 flow [2021-03-24 11:15:56,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5041, 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=5333, PETRI_PLACES=263, PETRI_TRANSITIONS=350} [2021-03-24 11:15:56,289 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 197 predicate places. [2021-03-24 11:15:56,289 INFO L480 AbstractCegarLoop]: Abstraction has has 263 places, 350 transitions, 5333 flow [2021-03-24 11:15:56,290 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 11:15:56,290 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:56,290 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 11:15:56,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-24 11:15:56,290 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 11:15:56,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:56,290 INFO L82 PathProgramCache]: Analyzing trace with hash -603733533, now seen corresponding path program 11 times [2021-03-24 11:15:56,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:56,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441385475] [2021-03-24 11:15:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:56,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:56,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:56,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:56,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:15:56,361 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:15:56,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:56,378 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:15:56,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:56,396 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:15:56,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:15:56,428 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:15:56,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:15:56,468 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:56,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:56,484 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:15:56,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:56,500 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:15:56,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:15:56,527 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:15:56,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:56,553 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:15:56,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:56,580 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:15:56,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:15:56,607 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:15:56,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:56,639 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:15:56,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:15:56,652 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:15:56,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:15:56,681 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:15:56,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:15:56,703 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:15:56,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:56,729 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-24 11:15:56,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:56,753 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:15:56,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:15:56,754 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:15:56,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:15:56,779 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:15:56,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:15:56,796 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:15:56,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:15:56,830 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:15:56,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:56,853 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:56,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:56,875 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:56,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:56,914 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 11:15:56,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441385475] [2021-03-24 11:15:56,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:56,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:15:56,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844777870] [2021-03-24 11:15:56,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:15:56,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:56,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:15:56,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:15:56,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:56,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 350 transitions, 5333 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 11:15:56,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:56,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:56,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:15:57,994 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 11:15:59,137 INFO L129 PetriNetUnfolder]: 725/2611 cut-off events. [2021-03-24 11:15:59,138 INFO L130 PetriNetUnfolder]: For 34703/34744 co-relation queries the response was YES. [2021-03-24 11:15:59,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17647 conditions, 2611 events. 725/2611 cut-off events. For 34703/34744 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25068 event pairs, 395 based on Foata normal form. 15/2587 useless extension candidates. Maximal degree in co-relation 17565. Up to 2059 conditions per place. [2021-03-24 11:15:59,161 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 279 selfloop transitions, 81 changer transitions 23/393 dead transitions. [2021-03-24 11:15:59,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 393 transitions, 6694 flow [2021-03-24 11:15:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:15:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:15:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2479 transitions. [2021-03-24 11:15:59,163 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4954036770583533 [2021-03-24 11:15:59,163 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2479 transitions. [2021-03-24 11:15:59,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2479 transitions. [2021-03-24 11:15:59,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:15:59,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2479 transitions. [2021-03-24 11:15:59,165 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 11:15:59,167 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 11:15:59,168 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 11:15:59,168 INFO L185 Difference]: Start difference. First operand has 263 places, 350 transitions, 5333 flow. Second operand 18 states and 2479 transitions. [2021-03-24 11:15:59,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 393 transitions, 6694 flow [2021-03-24 11:15:59,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 393 transitions, 6513 flow, removed 33 selfloop flow, removed 11 redundant places. [2021-03-24 11:15:59,290 INFO L241 Difference]: Finished difference. Result has 269 places, 354 transitions, 5450 flow [2021-03-24 11:15:59,290 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5166, 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=5450, PETRI_PLACES=269, PETRI_TRANSITIONS=354} [2021-03-24 11:15:59,291 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 203 predicate places. [2021-03-24 11:15:59,291 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 354 transitions, 5450 flow [2021-03-24 11:15:59,291 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 11:15:59,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:15:59,291 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 11:15:59,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-24 11:15:59,292 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 11:15:59,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:15:59,292 INFO L82 PathProgramCache]: Analyzing trace with hash -177765759, now seen corresponding path program 12 times [2021-03-24 11:15:59,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:15:59,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61759321] [2021-03-24 11:15:59,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:15:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:15:59,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:59,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:15:59,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:59,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 11:15:59,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:15:59,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:59,379 INFO L142 QuantifierPusher]: treesize reduction 30, result has 43.4 percent of original size [2021-03-24 11:15:59,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:59,389 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.2 percent of original size [2021-03-24 11:15:59,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:15:59,404 INFO L142 QuantifierPusher]: treesize reduction 30, result has 65.9 percent of original size [2021-03-24 11:15:59,404 INFO L147 QuantifierPusher]: treesize reduction 8, result has 86.2 percent of original size 50 [2021-03-24 11:15:59,438 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:15:59,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:15:59,454 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 11:15:59,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:59,471 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.0 percent of original size [2021-03-24 11:15:59,471 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.3 percent of original size 36 [2021-03-24 11:15:59,503 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.0 percent of original size [2021-03-24 11:15:59,503 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.3 percent of original size 36 [2021-03-24 11:15:59,534 INFO L142 QuantifierPusher]: treesize reduction 19, result has 71.6 percent of original size [2021-03-24 11:15:59,535 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 11:15:59,569 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:15:59,569 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:15:59,581 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:15:59,581 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:15:59,610 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:15:59,611 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:15:59,642 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 11:15:59,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:59,661 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 11:15:59,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:59,680 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:15:59,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:15:59,708 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:15:59,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:59,727 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:15:59,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:15:59,742 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:15:59,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:59,743 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:15:59,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:59,762 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:15:59,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:15:59,783 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:15:59,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:15:59,802 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:15:59,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:15:59,820 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 11:15:59,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61759321] [2021-03-24 11:15:59,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:15:59,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:15:59,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97177468] [2021-03-24 11:15:59,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:15:59,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:15:59,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:15:59,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:15:59,822 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:15:59,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 354 transitions, 5450 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 11:15:59,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:15:59,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:15:59,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:01,755 INFO L129 PetriNetUnfolder]: 763/2722 cut-off events. [2021-03-24 11:16:01,755 INFO L130 PetriNetUnfolder]: For 36685/36762 co-relation queries the response was YES. [2021-03-24 11:16:01,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18472 conditions, 2722 events. 763/2722 cut-off events. For 36685/36762 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 26282 event pairs, 381 based on Foata normal form. 14/2692 useless extension candidates. Maximal degree in co-relation 18388. Up to 2257 conditions per place. [2021-03-24 11:16:01,774 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 350 selfloop transitions, 48 changer transitions 25/433 dead transitions. [2021-03-24 11:16:01,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 433 transitions, 7339 flow [2021-03-24 11:16:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:16:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:16:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2608 transitions. [2021-03-24 11:16:01,777 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4937523665278304 [2021-03-24 11:16:01,777 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2608 transitions. [2021-03-24 11:16:01,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2608 transitions. [2021-03-24 11:16:01,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:01,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2608 transitions. [2021-03-24 11:16:01,779 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 11:16:01,781 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 11:16:01,781 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 11:16:01,781 INFO L185 Difference]: Start difference. First operand has 269 places, 354 transitions, 5450 flow. Second operand 19 states and 2608 transitions. [2021-03-24 11:16:01,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 433 transitions, 7339 flow [2021-03-24 11:16:01,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 433 transitions, 7212 flow, removed 14 selfloop flow, removed 12 redundant places. [2021-03-24 11:16:01,891 INFO L241 Difference]: Finished difference. Result has 279 places, 378 transitions, 5841 flow [2021-03-24 11:16:01,891 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5333, 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=5841, PETRI_PLACES=279, PETRI_TRANSITIONS=378} [2021-03-24 11:16:01,891 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 213 predicate places. [2021-03-24 11:16:01,891 INFO L480 AbstractCegarLoop]: Abstraction has has 279 places, 378 transitions, 5841 flow [2021-03-24 11:16:01,892 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 11:16:01,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:01,892 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 11:16:01,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-24 11:16:01,892 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 11:16:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:01,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1007227539, now seen corresponding path program 13 times [2021-03-24 11:16:01,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:01,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161546769] [2021-03-24 11:16:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:01,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:01,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:01,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:01,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 11:16:01,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:01,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:01,959 INFO L142 QuantifierPusher]: treesize reduction 30, result has 43.4 percent of original size [2021-03-24 11:16:01,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:01,969 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.2 percent of original size [2021-03-24 11:16:01,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:16:01,984 INFO L142 QuantifierPusher]: treesize reduction 30, result has 65.9 percent of original size [2021-03-24 11:16:01,984 INFO L147 QuantifierPusher]: treesize reduction 8, result has 86.2 percent of original size 50 [2021-03-24 11:16:02,018 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.1 percent of original size [2021-03-24 11:16:02,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:02,034 INFO L142 QuantifierPusher]: treesize reduction 17, result has 63.8 percent of original size [2021-03-24 11:16:02,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:16:02,050 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.0 percent of original size [2021-03-24 11:16:02,051 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.3 percent of original size 36 [2021-03-24 11:16:02,081 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.0 percent of original size [2021-03-24 11:16:02,082 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.3 percent of original size 36 [2021-03-24 11:16:02,112 INFO L142 QuantifierPusher]: treesize reduction 19, result has 71.6 percent of original size [2021-03-24 11:16:02,112 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 11:16:02,146 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:02,146 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:02,158 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:16:02,158 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:02,187 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:16:02,188 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:02,218 INFO L142 QuantifierPusher]: treesize reduction 51, result has 39.3 percent of original size [2021-03-24 11:16:02,218 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:02,249 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 11:16:02,249 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:16:02,281 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 11:16:02,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:02,301 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:16:02,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:02,321 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:16:02,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:02,336 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:02,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:02,337 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:16:02,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:02,356 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:02,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:02,377 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:02,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:02,396 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:02,414 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 11:16:02,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161546769] [2021-03-24 11:16:02,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:02,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:16:02,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150435290] [2021-03-24 11:16:02,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:16:02,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:02,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:16:02,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:16:02,416 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:02,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 378 transitions, 5841 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 11:16:02,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:02,417 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:02,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:04,344 INFO L129 PetriNetUnfolder]: 763/2740 cut-off events. [2021-03-24 11:16:04,344 INFO L130 PetriNetUnfolder]: For 37557/37628 co-relation queries the response was YES. [2021-03-24 11:16:04,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18683 conditions, 2740 events. 763/2740 cut-off events. For 37557/37628 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 26668 event pairs, 387 based on Foata normal form. 17/2712 useless extension candidates. Maximal degree in co-relation 18595. Up to 2298 conditions per place. [2021-03-24 11:16:04,367 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 342 selfloop transitions, 43 changer transitions 19/414 dead transitions. [2021-03-24 11:16:04,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 414 transitions, 7202 flow [2021-03-24 11:16:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:16:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:16:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2598 transitions. [2021-03-24 11:16:04,369 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49185914426353655 [2021-03-24 11:16:04,369 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2598 transitions. [2021-03-24 11:16:04,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2598 transitions. [2021-03-24 11:16:04,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:04,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2598 transitions. [2021-03-24 11:16:04,371 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 11:16:04,373 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 11:16:04,373 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 11:16:04,373 INFO L185 Difference]: Start difference. First operand has 279 places, 378 transitions, 5841 flow. Second operand 19 states and 2598 transitions. [2021-03-24 11:16:04,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 414 transitions, 7202 flow [2021-03-24 11:16:04,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 414 transitions, 7122 flow, removed 25 selfloop flow, removed 10 redundant places. [2021-03-24 11:16:04,501 INFO L241 Difference]: Finished difference. Result has 289 places, 385 transitions, 6034 flow [2021-03-24 11:16:04,501 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5771, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6034, PETRI_PLACES=289, PETRI_TRANSITIONS=385} [2021-03-24 11:16:04,502 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 223 predicate places. [2021-03-24 11:16:04,502 INFO L480 AbstractCegarLoop]: Abstraction has has 289 places, 385 transitions, 6034 flow [2021-03-24 11:16:04,502 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 11:16:04,502 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:04,502 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 11:16:04,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-24 11:16:04,502 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 11:16:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:04,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1576395611, now seen corresponding path program 14 times [2021-03-24 11:16:04,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:04,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858793234] [2021-03-24 11:16:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:04,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:04,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:04,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:04,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:04,570 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:16:04,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:04,586 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:16:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:04,603 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:16:04,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:04,636 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:16:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:04,675 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:04,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:04,692 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:16:04,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:04,707 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-03-24 11:16:04,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:04,738 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:04,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:04,767 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:04,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:04,797 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:04,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:04,829 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:16:04,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:04,866 INFO L142 QuantifierPusher]: treesize reduction 71, result has 43.2 percent of original size [2021-03-24 11:16:04,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:16:04,905 INFO L142 QuantifierPusher]: treesize reduction 71, result has 40.8 percent of original size [2021-03-24 11:16:04,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:16:04,921 INFO L142 QuantifierPusher]: treesize reduction 71, result has 37.7 percent of original size [2021-03-24 11:16:04,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:16:04,959 INFO L142 QuantifierPusher]: treesize reduction 68, result has 38.7 percent of original size [2021-03-24 11:16:04,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:16:04,998 INFO L142 QuantifierPusher]: treesize reduction 69, result has 45.7 percent of original size [2021-03-24 11:16:04,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:16:05,044 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:16:05,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:05,068 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:16:05,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:05,087 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:16:05,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:05,088 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:16:05,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:16:05,122 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:05,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:05,145 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:05,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:05,166 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:05,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:05,187 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 11:16:05,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858793234] [2021-03-24 11:16:05,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:05,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:05,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505919742] [2021-03-24 11:16:05,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:05,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:05,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:05,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:05,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:05,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 385 transitions, 6034 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 11:16:05,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:05,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:05,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:05,915 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:16:06,085 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-24 11:16:06,363 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2021-03-24 11:16:06,560 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-03-24 11:16:07,575 INFO L129 PetriNetUnfolder]: 756/2723 cut-off events. [2021-03-24 11:16:07,576 INFO L130 PetriNetUnfolder]: For 37993/38064 co-relation queries the response was YES. [2021-03-24 11:16:07,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18621 conditions, 2723 events. 756/2723 cut-off events. For 37993/38064 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 26493 event pairs, 393 based on Foata normal form. 23/2701 useless extension candidates. Maximal degree in co-relation 18530. Up to 2221 conditions per place. [2021-03-24 11:16:07,604 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 314 selfloop transitions, 70 changer transitions 22/416 dead transitions. [2021-03-24 11:16:07,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 416 transitions, 7219 flow [2021-03-24 11:16:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:07,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 11:16:07,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 11:16:07,606 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 11:16:07,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 11:16:07,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:07,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 11:16:07,608 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 11:16:07,610 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 11:16:07,610 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 11:16:07,610 INFO L185 Difference]: Start difference. First operand has 289 places, 385 transitions, 6034 flow. Second operand 18 states and 2472 transitions. [2021-03-24 11:16:07,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 416 transitions, 7219 flow [2021-03-24 11:16:07,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 416 transitions, 7112 flow, removed 18 selfloop flow, removed 13 redundant places. [2021-03-24 11:16:07,765 INFO L241 Difference]: Finished difference. Result has 294 places, 384 transitions, 6074 flow [2021-03-24 11:16:07,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5931, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6074, PETRI_PLACES=294, PETRI_TRANSITIONS=384} [2021-03-24 11:16:07,765 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 228 predicate places. [2021-03-24 11:16:07,765 INFO L480 AbstractCegarLoop]: Abstraction has has 294 places, 384 transitions, 6074 flow [2021-03-24 11:16:07,766 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 11:16:07,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:07,766 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 11:16:07,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-24 11:16:07,766 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 11:16:07,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:07,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1247925093, now seen corresponding path program 15 times [2021-03-24 11:16:07,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:07,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584246522] [2021-03-24 11:16:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:07,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:07,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:07,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:07,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:07,832 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:16:07,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:07,848 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:16:07,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:07,865 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:16:07,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:07,897 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:16:07,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:07,936 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:07,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:07,952 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:16:07,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:07,967 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-03-24 11:16:07,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:07,998 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:07,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:08,027 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:08,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:08,057 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:08,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:08,088 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:16:08,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:08,125 INFO L142 QuantifierPusher]: treesize reduction 71, result has 43.2 percent of original size [2021-03-24 11:16:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:16:08,164 INFO L142 QuantifierPusher]: treesize reduction 71, result has 40.8 percent of original size [2021-03-24 11:16:08,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:16:08,181 INFO L142 QuantifierPusher]: treesize reduction 71, result has 37.7 percent of original size [2021-03-24 11:16:08,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:16:08,218 INFO L142 QuantifierPusher]: treesize reduction 72, result has 44.6 percent of original size [2021-03-24 11:16:08,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:16:08,263 INFO L142 QuantifierPusher]: treesize reduction 30, result has 52.4 percent of original size [2021-03-24 11:16:08,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:08,287 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:16:08,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:08,310 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:16:08,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:08,329 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:16:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:08,330 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:16:08,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:16:08,363 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:08,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:08,386 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:08,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:08,408 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:08,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:08,428 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 11:16:08,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584246522] [2021-03-24 11:16:08,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:08,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:08,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144579749] [2021-03-24 11:16:08,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:08,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:08,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:08,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:08,431 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:08,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 384 transitions, 6074 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 11:16:08,432 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:08,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:08,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:09,182 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:16:09,402 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-24 11:16:09,656 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2021-03-24 11:16:10,813 INFO L129 PetriNetUnfolder]: 756/2741 cut-off events. [2021-03-24 11:16:10,814 INFO L130 PetriNetUnfolder]: For 39691/39749 co-relation queries the response was YES. [2021-03-24 11:16:10,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18917 conditions, 2741 events. 756/2741 cut-off events. For 39691/39749 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 26580 event pairs, 374 based on Foata normal form. 16/2714 useless extension candidates. Maximal degree in co-relation 18824. Up to 2170 conditions per place. [2021-03-24 11:16:10,840 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 303 selfloop transitions, 88 changer transitions 23/424 dead transitions. [2021-03-24 11:16:10,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 424 transitions, 7440 flow [2021-03-24 11:16:10,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:10,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2478 transitions. [2021-03-24 11:16:10,842 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4952038369304556 [2021-03-24 11:16:10,842 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2478 transitions. [2021-03-24 11:16:10,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2478 transitions. [2021-03-24 11:16:10,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:10,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2478 transitions. [2021-03-24 11:16:10,844 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 11:16:10,846 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 11:16:10,846 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 11:16:10,846 INFO L185 Difference]: Start difference. First operand has 294 places, 384 transitions, 6074 flow. Second operand 18 states and 2478 transitions. [2021-03-24 11:16:10,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 424 transitions, 7440 flow [2021-03-24 11:16:11,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 424 transitions, 7301 flow, removed 15 selfloop flow, removed 12 redundant places. [2021-03-24 11:16:11,012 INFO L241 Difference]: Finished difference. Result has 298 places, 385 transitions, 6190 flow [2021-03-24 11:16:11,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5951, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6190, PETRI_PLACES=298, PETRI_TRANSITIONS=385} [2021-03-24 11:16:11,012 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 232 predicate places. [2021-03-24 11:16:11,013 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 385 transitions, 6190 flow [2021-03-24 11:16:11,013 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 11:16:11,013 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:11,013 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 11:16:11,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-24 11:16:11,013 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 11:16:11,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:11,013 INFO L82 PathProgramCache]: Analyzing trace with hash -904680331, now seen corresponding path program 16 times [2021-03-24 11:16:11,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:11,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632099192] [2021-03-24 11:16:11,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:11,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:11,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:11,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:11,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:16:11,135 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-24 11:16:11,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:11,150 INFO L142 QuantifierPusher]: treesize reduction 22, result has 64.5 percent of original size [2021-03-24 11:16:11,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:16:11,185 INFO L142 QuantifierPusher]: treesize reduction 30, result has 65.9 percent of original size [2021-03-24 11:16:11,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:16:11,222 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.1 percent of original size [2021-03-24 11:16:11,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:16:11,263 INFO L142 QuantifierPusher]: treesize reduction 30, result has 72.0 percent of original size [2021-03-24 11:16:11,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 11:16:11,315 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.1 percent of original size [2021-03-24 11:16:11,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:16:11,316 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.4 percent of original size [2021-03-24 11:16:11,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:16:11,347 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.0 percent of original size [2021-03-24 11:16:11,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 11:16:11,375 INFO L142 QuantifierPusher]: treesize reduction 16, result has 78.9 percent of original size [2021-03-24 11:16:11,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:16:11,413 INFO L142 QuantifierPusher]: treesize reduction 16, result has 78.9 percent of original size [2021-03-24 11:16:11,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:16:11,452 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 11:16:11,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:16:11,494 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 11:16:11,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:16:11,508 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 11:16:11,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:11,545 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 11:16:11,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:11,584 INFO L142 QuantifierPusher]: treesize reduction 59, result has 54.3 percent of original size [2021-03-24 11:16:11,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:16:11,633 INFO L142 QuantifierPusher]: treesize reduction 59, result has 53.9 percent of original size [2021-03-24 11:16:11,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:16:11,686 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.7 percent of original size [2021-03-24 11:16:11,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 11:16:11,747 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:16:11,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:16:11,787 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:16:11,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:11,805 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:16:11,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:11,837 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:16:11,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:11,872 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:11,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:11,892 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:11,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:11,893 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:11,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:11,912 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 11:16:11,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632099192] [2021-03-24 11:16:11,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:11,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:11,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260942606] [2021-03-24 11:16:11,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:11,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:11,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:11,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:11,914 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:16:11,914 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 385 transitions, 6190 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 11:16:11,914 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:11,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:16:11,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:13,882 INFO L129 PetriNetUnfolder]: 739/2684 cut-off events. [2021-03-24 11:16:13,882 INFO L130 PetriNetUnfolder]: For 39768/39826 co-relation queries the response was YES. [2021-03-24 11:16:13,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18741 conditions, 2684 events. 739/2684 cut-off events. For 39768/39826 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 25961 event pairs, 387 based on Foata normal form. 17/2659 useless extension candidates. Maximal degree in co-relation 18647. Up to 2290 conditions per place. [2021-03-24 11:16:13,904 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 344 selfloop transitions, 34 changer transitions 21/405 dead transitions. [2021-03-24 11:16:13,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 405 transitions, 7229 flow [2021-03-24 11:16:13,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:16:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:16:13,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1685 transitions. [2021-03-24 11:16:13,906 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31900795153351 [2021-03-24 11:16:13,906 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1685 transitions. [2021-03-24 11:16:13,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1685 transitions. [2021-03-24 11:16:13,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:13,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1685 transitions. [2021-03-24 11:16:13,907 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 11:16:13,909 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 11:16:13,909 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 11:16:13,909 INFO L185 Difference]: Start difference. First operand has 298 places, 385 transitions, 6190 flow. Second operand 19 states and 1685 transitions. [2021-03-24 11:16:13,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 405 transitions, 7229 flow [2021-03-24 11:16:14,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 405 transitions, 7052 flow, removed 10 selfloop flow, removed 14 redundant places. [2021-03-24 11:16:14,052 INFO L241 Difference]: Finished difference. Result has 303 places, 383 transitions, 6063 flow [2021-03-24 11:16:14,052 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6017, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6063, PETRI_PLACES=303, PETRI_TRANSITIONS=383} [2021-03-24 11:16:14,052 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 237 predicate places. [2021-03-24 11:16:14,052 INFO L480 AbstractCegarLoop]: Abstraction has has 303 places, 383 transitions, 6063 flow [2021-03-24 11:16:14,052 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 11:16:14,052 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:14,052 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 11:16:14,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-24 11:16:14,053 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 11:16:14,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:14,053 INFO L82 PathProgramCache]: Analyzing trace with hash 23195185, now seen corresponding path program 17 times [2021-03-24 11:16:14,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:14,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783639729] [2021-03-24 11:16:14,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:14,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:14,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:14,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:14,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:16:14,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:14,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:16:14,122 INFO L142 QuantifierPusher]: treesize reduction 48, result has 40.0 percent of original size [2021-03-24 11:16:14,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:14,141 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.3 percent of original size [2021-03-24 11:16:14,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:16:14,177 INFO L142 QuantifierPusher]: treesize reduction 40, result has 68.3 percent of original size [2021-03-24 11:16:14,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-24 11:16:14,242 INFO L142 QuantifierPusher]: treesize reduction 14, result has 80.3 percent of original size [2021-03-24 11:16:14,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 11:16:14,268 INFO L142 QuantifierPusher]: treesize reduction 14, result has 76.7 percent of original size [2021-03-24 11:16:14,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:14,292 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-03-24 11:16:14,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 11:16:14,325 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-03-24 11:16:14,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 11:16:14,360 INFO L142 QuantifierPusher]: treesize reduction 18, result has 81.1 percent of original size [2021-03-24 11:16:14,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 11:16:14,400 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:16:14,400 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:16:14,411 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 11:16:14,412 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:14,438 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 11:16:14,438 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:14,466 INFO L142 QuantifierPusher]: treesize reduction 82, result has 30.5 percent of original size [2021-03-24 11:16:14,466 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size 29 [2021-03-24 11:16:14,498 INFO L142 QuantifierPusher]: treesize reduction 55, result has 61.3 percent of original size [2021-03-24 11:16:14,498 INFO L147 QuantifierPusher]: treesize reduction 7, result has 92.0 percent of original size 80 [2021-03-24 11:16:14,543 INFO L142 QuantifierPusher]: treesize reduction 18, result has 77.8 percent of original size [2021-03-24 11:16:14,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 11:16:14,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.7 percent of original size [2021-03-24 11:16:14,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 11:16:14,595 INFO L142 QuantifierPusher]: treesize reduction 39, result has 50.6 percent of original size [2021-03-24 11:16:14,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:16:14,626 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:16:14,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:16:14,646 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-03-24 11:16:14,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:16:14,664 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:14,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:14,682 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:14,683 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:14,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:14,701 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 11:16:14,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783639729] [2021-03-24 11:16:14,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:14,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:16:14,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414954076] [2021-03-24 11:16:14,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:16:14,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:14,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:16:14,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:16:14,703 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:14,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 383 transitions, 6063 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 11:16:14,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:14,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:14,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:16,587 INFO L129 PetriNetUnfolder]: 735/2676 cut-off events. [2021-03-24 11:16:16,587 INFO L130 PetriNetUnfolder]: For 40466/40519 co-relation queries the response was YES. [2021-03-24 11:16:16,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18667 conditions, 2676 events. 735/2676 cut-off events. For 40466/40519 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 25930 event pairs, 382 based on Foata normal form. 17/2650 useless extension candidates. Maximal degree in co-relation 18571. Up to 2278 conditions per place. [2021-03-24 11:16:16,612 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 341 selfloop transitions, 46 changer transitions 9/406 dead transitions. [2021-03-24 11:16:16,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 406 transitions, 7176 flow [2021-03-24 11:16:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:16:16,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:16:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2596 transitions. [2021-03-24 11:16:16,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49148049981067776 [2021-03-24 11:16:16,614 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2596 transitions. [2021-03-24 11:16:16,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2596 transitions. [2021-03-24 11:16:16,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:16,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2596 transitions. [2021-03-24 11:16:16,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.6315789473684) internal successors, (2596), 19 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:16:16,618 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 11:16:16,618 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 11:16:16,618 INFO L185 Difference]: Start difference. First operand has 303 places, 383 transitions, 6063 flow. Second operand 19 states and 2596 transitions. [2021-03-24 11:16:16,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 406 transitions, 7176 flow [2021-03-24 11:16:16,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 406 transitions, 7092 flow, removed 7 selfloop flow, removed 16 redundant places. [2021-03-24 11:16:16,772 INFO L241 Difference]: Finished difference. Result has 304 places, 389 transitions, 6215 flow [2021-03-24 11:16:16,773 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5985, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6215, PETRI_PLACES=304, PETRI_TRANSITIONS=389} [2021-03-24 11:16:16,773 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 238 predicate places. [2021-03-24 11:16:16,773 INFO L480 AbstractCegarLoop]: Abstraction has has 304 places, 389 transitions, 6215 flow [2021-03-24 11:16:16,773 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 11:16:16,773 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:16,773 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 11:16:16,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-24 11:16:16,773 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 11:16:16,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:16,774 INFO L82 PathProgramCache]: Analyzing trace with hash -991308293, now seen corresponding path program 18 times [2021-03-24 11:16:16,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:16,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439627776] [2021-03-24 11:16:16,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:16,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:16,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:16,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:16,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:16,839 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:16:16,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:16,856 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:16:16,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:16,874 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:16:16,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:16,908 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:16:16,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:16,948 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:16,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:16,964 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:16:16,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:16,980 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:16:16,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:16:17,008 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:16:17,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:16:17,034 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:16:17,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:16:17,062 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:16:17,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:17,093 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:16:17,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:17,126 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:16:17,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:16:17,140 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:16:17,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:16:17,170 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:16:17,171 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 11:16:17,209 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:16:17,209 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:16:17,248 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:16:17,248 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:16:17,289 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:16:17,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:17,314 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:16:17,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:17,333 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:16:17,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:17,334 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:16:17,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:16:17,368 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:17,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:17,392 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:17,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:17,415 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:17,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:17,436 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 11:16:17,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439627776] [2021-03-24 11:16:17,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:17,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:17,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228522754] [2021-03-24 11:16:17,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:17,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:17,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:17,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:17,438 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:17,439 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 389 transitions, 6215 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 11:16:17,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:17,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:17,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:18,575 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-03-24 11:16:18,779 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2021-03-24 11:16:19,837 INFO L129 PetriNetUnfolder]: 745/2709 cut-off events. [2021-03-24 11:16:19,837 INFO L130 PetriNetUnfolder]: For 41848/41907 co-relation queries the response was YES. [2021-03-24 11:16:19,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19046 conditions, 2709 events. 745/2709 cut-off events. For 41848/41907 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 26322 event pairs, 381 based on Foata normal form. 27/2696 useless extension candidates. Maximal degree in co-relation 18949. Up to 2103 conditions per place. [2021-03-24 11:16:19,864 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 305 selfloop transitions, 86 changer transitions 19/420 dead transitions. [2021-03-24 11:16:19,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 420 transitions, 7486 flow [2021-03-24 11:16:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 11:16:19,865 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 11:16:19,865 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 11:16:19,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 11:16:19,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:19,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 11:16:19,867 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 11:16:19,869 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 11:16:19,869 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 11:16:19,869 INFO L185 Difference]: Start difference. First operand has 304 places, 389 transitions, 6215 flow. Second operand 18 states and 2473 transitions. [2021-03-24 11:16:19,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 420 transitions, 7486 flow [2021-03-24 11:16:20,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 420 transitions, 7354 flow, removed 29 selfloop flow, removed 13 redundant places. [2021-03-24 11:16:20,041 INFO L241 Difference]: Finished difference. Result has 313 places, 393 transitions, 6365 flow [2021-03-24 11:16:20,041 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6085, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6365, PETRI_PLACES=313, PETRI_TRANSITIONS=393} [2021-03-24 11:16:20,041 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 247 predicate places. [2021-03-24 11:16:20,042 INFO L480 AbstractCegarLoop]: Abstraction has has 313 places, 393 transitions, 6365 flow [2021-03-24 11:16:20,042 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 11:16:20,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:20,042 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 11:16:20,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-24 11:16:20,042 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 11:16:20,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:20,042 INFO L82 PathProgramCache]: Analyzing trace with hash -2106761297, now seen corresponding path program 19 times [2021-03-24 11:16:20,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:20,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630854576] [2021-03-24 11:16:20,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:20,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:20,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:20,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:20,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:20,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:20,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:20,109 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.9 percent of original size [2021-03-24 11:16:20,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:20,129 INFO L142 QuantifierPusher]: treesize reduction 36, result has 56.1 percent of original size [2021-03-24 11:16:20,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:20,162 INFO L142 QuantifierPusher]: treesize reduction 28, result has 69.6 percent of original size [2021-03-24 11:16:20,162 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:16:20,206 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 11:16:20,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:20,224 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 11:16:20,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:20,241 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:20,241 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:20,273 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:20,274 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:20,308 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:16:20,308 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:16:20,346 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:16:20,347 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:16:20,360 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:20,360 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:20,391 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:16:20,391 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:20,422 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:16:20,422 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:20,455 INFO L142 QuantifierPusher]: treesize reduction 51, result has 39.3 percent of original size [2021-03-24 11:16:20,455 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:20,487 INFO L142 QuantifierPusher]: treesize reduction 48, result has 40.0 percent of original size [2021-03-24 11:16:20,488 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:16:20,519 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.2 percent of original size [2021-03-24 11:16:20,520 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:16:20,553 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:16:20,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:20,573 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:16:20,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:20,590 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:20,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:20,590 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:16:20,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:20,610 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:20,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:20,632 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:20,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:20,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:20,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:20,672 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 11:16:20,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630854576] [2021-03-24 11:16:20,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:20,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:20,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304936915] [2021-03-24 11:16:20,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:20,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:20,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:20,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:20,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:20,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 393 transitions, 6365 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 11:16:20,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:20,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:20,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:21,607 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-03-24 11:16:21,782 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-03-24 11:16:21,994 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2021-03-24 11:16:22,924 INFO L129 PetriNetUnfolder]: 744/2707 cut-off events. [2021-03-24 11:16:22,925 INFO L130 PetriNetUnfolder]: For 44271/44330 co-relation queries the response was YES. [2021-03-24 11:16:22,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19333 conditions, 2707 events. 744/2707 cut-off events. For 44271/44330 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 26260 event pairs, 384 based on Foata normal form. 33/2700 useless extension candidates. Maximal degree in co-relation 19230. Up to 2102 conditions per place. [2021-03-24 11:16:22,953 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 302 selfloop transitions, 94 changer transitions 20/426 dead transitions. [2021-03-24 11:16:22,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 426 transitions, 7704 flow [2021-03-24 11:16:22,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:22,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 11:16:22,955 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 11:16:22,955 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 11:16:22,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 11:16:22,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:22,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 11:16:22,956 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 11:16:22,958 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 11:16:22,959 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 11:16:22,959 INFO L185 Difference]: Start difference. First operand has 313 places, 393 transitions, 6365 flow. Second operand 18 states and 2472 transitions. [2021-03-24 11:16:22,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 426 transitions, 7704 flow [2021-03-24 11:16:23,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 426 transitions, 7507 flow, removed 21 selfloop flow, removed 12 redundant places. [2021-03-24 11:16:23,140 INFO L241 Difference]: Finished difference. Result has 318 places, 394 transitions, 6425 flow [2021-03-24 11:16:23,141 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6174, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6425, PETRI_PLACES=318, PETRI_TRANSITIONS=394} [2021-03-24 11:16:23,141 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 252 predicate places. [2021-03-24 11:16:23,141 INFO L480 AbstractCegarLoop]: Abstraction has has 318 places, 394 transitions, 6425 flow [2021-03-24 11:16:23,141 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 11:16:23,141 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:23,141 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 11:16:23,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-24 11:16:23,141 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 11:16:23,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:23,142 INFO L82 PathProgramCache]: Analyzing trace with hash -745326423, now seen corresponding path program 20 times [2021-03-24 11:16:23,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:23,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657685511] [2021-03-24 11:16:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:23,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:23,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:23,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:16:23,211 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-24 11:16:23,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:23,227 INFO L142 QuantifierPusher]: treesize reduction 20, result has 55.6 percent of original size [2021-03-24 11:16:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:16:23,244 INFO L142 QuantifierPusher]: treesize reduction 20, result has 65.5 percent of original size [2021-03-24 11:16:23,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:23,273 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:16:23,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:16:23,307 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:16:23,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:16:23,330 INFO L142 QuantifierPusher]: treesize reduction 12, result has 72.7 percent of original size [2021-03-24 11:16:23,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:23,351 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:16:23,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:23,381 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:16:23,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:23,411 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 11:16:23,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:16:23,453 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 11:16:23,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:16:23,466 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 11:16:23,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:23,502 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 11:16:23,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:16:23,540 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-24 11:16:23,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:16:23,564 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:16:23,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:23,590 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 11:16:23,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:23,622 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 11:16:23,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:16:23,638 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 11:16:23,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:23,667 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.1 percent of original size [2021-03-24 11:16:23,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:16:23,699 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:16:23,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:16:23,717 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:23,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:23,736 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:23,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:23,737 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:23,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:23,755 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 11:16:23,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657685511] [2021-03-24 11:16:23,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:23,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:16:23,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597532405] [2021-03-24 11:16:23,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:16:23,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:23,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:16:23,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:16:23,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:23,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 394 transitions, 6425 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 11:16:23,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:23,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:23,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:25,766 INFO L129 PetriNetUnfolder]: 736/2684 cut-off events. [2021-03-24 11:16:25,767 INFO L130 PetriNetUnfolder]: For 43562/43616 co-relation queries the response was YES. [2021-03-24 11:16:25,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19152 conditions, 2684 events. 736/2684 cut-off events. For 43562/43616 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 26052 event pairs, 390 based on Foata normal form. 17/2658 useless extension candidates. Maximal degree in co-relation 19047. Up to 2258 conditions per place. [2021-03-24 11:16:25,795 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 357 selfloop transitions, 54 changer transitions 9/430 dead transitions. [2021-03-24 11:16:25,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 430 transitions, 7729 flow [2021-03-24 11:16:25,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:16:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:16:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2738 transitions. [2021-03-24 11:16:25,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49244604316546764 [2021-03-24 11:16:25,797 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2738 transitions. [2021-03-24 11:16:25,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2738 transitions. [2021-03-24 11:16:25,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:25,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2738 transitions. [2021-03-24 11:16:25,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.9) internal successors, (2738), 20 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:16:25,801 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 11:16:25,801 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 11:16:25,801 INFO L185 Difference]: Start difference. First operand has 318 places, 394 transitions, 6425 flow. Second operand 20 states and 2738 transitions. [2021-03-24 11:16:25,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 430 transitions, 7729 flow [2021-03-24 11:16:25,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 430 transitions, 7549 flow, removed 13 selfloop flow, removed 14 redundant places. [2021-03-24 11:16:25,975 INFO L241 Difference]: Finished difference. Result has 323 places, 400 transitions, 6470 flow [2021-03-24 11:16:25,975 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6251, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6470, PETRI_PLACES=323, PETRI_TRANSITIONS=400} [2021-03-24 11:16:25,975 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 257 predicate places. [2021-03-24 11:16:25,976 INFO L480 AbstractCegarLoop]: Abstraction has has 323 places, 400 transitions, 6470 flow [2021-03-24 11:16:25,976 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 11:16:25,976 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:25,976 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 11:16:25,976 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-24 11:16:25,976 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 11:16:25,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:25,977 INFO L82 PathProgramCache]: Analyzing trace with hash 504923289, now seen corresponding path program 21 times [2021-03-24 11:16:25,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:25,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967488053] [2021-03-24 11:16:25,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:26,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:26,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:26,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:26,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:26,042 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:16:26,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:26,058 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:16:26,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:26,077 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:16:26,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:26,111 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:16:26,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:26,152 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:26,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:26,168 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:16:26,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:26,183 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:16:26,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:16:26,211 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:16:26,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:16:26,238 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:16:26,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:16:26,266 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:16:26,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:26,298 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:16:26,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:26,330 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:16:26,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:16:26,344 INFO L142 QuantifierPusher]: treesize reduction 35, result has 58.3 percent of original size [2021-03-24 11:16:26,344 INFO L147 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size 33 [2021-03-24 11:16:26,382 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:16:26,383 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 11:16:26,421 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:16:26,421 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:16:26,460 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:16:26,460 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:16:26,500 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:16:26,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:26,525 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:16:26,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:26,544 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:16:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:26,545 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:16:26,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:16:26,579 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:26,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:26,603 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:26,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:26,625 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:26,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:26,646 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 11:16:26,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967488053] [2021-03-24 11:16:26,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:26,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:26,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912405430] [2021-03-24 11:16:26,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:26,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:26,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:26,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:26,648 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:26,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 400 transitions, 6470 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 11:16:26,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:26,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:26,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:27,517 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-03-24 11:16:27,788 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-03-24 11:16:27,987 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2021-03-24 11:16:29,012 INFO L129 PetriNetUnfolder]: 745/2711 cut-off events. [2021-03-24 11:16:29,012 INFO L130 PetriNetUnfolder]: For 43978/44032 co-relation queries the response was YES. [2021-03-24 11:16:29,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19301 conditions, 2711 events. 745/2711 cut-off events. For 43978/44032 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 26349 event pairs, 389 based on Foata normal form. 35/2704 useless extension candidates. Maximal degree in co-relation 19195. Up to 2107 conditions per place. [2021-03-24 11:16:29,042 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 303 selfloop transitions, 92 changer transitions 20/425 dead transitions. [2021-03-24 11:16:29,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 425 transitions, 7645 flow [2021-03-24 11:16:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2021-03-24 11:16:29,044 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4944044764188649 [2021-03-24 11:16:29,044 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2474 transitions. [2021-03-24 11:16:29,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2474 transitions. [2021-03-24 11:16:29,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:29,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2474 transitions. [2021-03-24 11:16:29,046 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 11:16:29,047 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 11:16:29,048 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 11:16:29,048 INFO L185 Difference]: Start difference. First operand has 323 places, 400 transitions, 6470 flow. Second operand 18 states and 2474 transitions. [2021-03-24 11:16:29,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 425 transitions, 7645 flow [2021-03-24 11:16:29,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 425 transitions, 7511 flow, removed 20 selfloop flow, removed 13 redundant places. [2021-03-24 11:16:29,228 INFO L241 Difference]: Finished difference. Result has 329 places, 399 transitions, 6523 flow [2021-03-24 11:16:29,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6338, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6523, PETRI_PLACES=329, PETRI_TRANSITIONS=399} [2021-03-24 11:16:29,229 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 263 predicate places. [2021-03-24 11:16:29,229 INFO L480 AbstractCegarLoop]: Abstraction has has 329 places, 399 transitions, 6523 flow [2021-03-24 11:16:29,229 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 11:16:29,229 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:29,229 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 11:16:29,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-24 11:16:29,229 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 11:16:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:29,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1672923487, now seen corresponding path program 22 times [2021-03-24 11:16:29,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:29,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806069603] [2021-03-24 11:16:29,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:29,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:29,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:29,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:29,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:29,307 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:16:29,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:29,324 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:16:29,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:29,343 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:16:29,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:29,379 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:16:29,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:29,421 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:29,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:29,437 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:16:29,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:29,452 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:16:29,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:16:29,482 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:16:29,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:16:29,509 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:16:29,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:16:29,539 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:16:29,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:29,573 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:16:29,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:29,607 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:16:29,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:16:29,621 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 11:16:29,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:29,645 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:16:29,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:29,669 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:16:29,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:29,697 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-24 11:16:29,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:29,722 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:16:29,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:29,723 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:16:29,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:29,751 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:16:29,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:29,770 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:16:29,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:16:29,806 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:29,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:29,832 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:29,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:29,856 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:29,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:29,878 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 11:16:29,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806069603] [2021-03-24 11:16:29,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:29,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:29,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543595498] [2021-03-24 11:16:29,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:29,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:29,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:29,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:29,881 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:29,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 399 transitions, 6523 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 11:16:29,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:29,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:29,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:31,633 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-24 11:16:32,264 INFO L129 PetriNetUnfolder]: 768/2775 cut-off events. [2021-03-24 11:16:32,264 INFO L130 PetriNetUnfolder]: For 48068/48117 co-relation queries the response was YES. [2021-03-24 11:16:32,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20139 conditions, 2775 events. 768/2775 cut-off events. For 48068/48117 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 27005 event pairs, 399 based on Foata normal form. 22/2757 useless extension candidates. Maximal degree in co-relation 20030. Up to 2079 conditions per place. [2021-03-24 11:16:32,296 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 320 selfloop transitions, 97 changer transitions 28/455 dead transitions. [2021-03-24 11:16:32,296 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 455 transitions, 8266 flow [2021-03-24 11:16:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2481 transitions. [2021-03-24 11:16:32,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4958033573141487 [2021-03-24 11:16:32,298 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2481 transitions. [2021-03-24 11:16:32,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2481 transitions. [2021-03-24 11:16:32,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:32,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2481 transitions. [2021-03-24 11:16:32,299 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 11:16:32,301 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 11:16:32,301 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 11:16:32,301 INFO L185 Difference]: Start difference. First operand has 329 places, 399 transitions, 6523 flow. Second operand 18 states and 2481 transitions. [2021-03-24 11:16:32,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 455 transitions, 8266 flow [2021-03-24 11:16:32,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 455 transitions, 8076 flow, removed 15 selfloop flow, removed 15 redundant places. [2021-03-24 11:16:32,508 INFO L241 Difference]: Finished difference. Result has 331 places, 412 transitions, 6824 flow [2021-03-24 11:16:32,509 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6371, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6824, PETRI_PLACES=331, PETRI_TRANSITIONS=412} [2021-03-24 11:16:32,509 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 265 predicate places. [2021-03-24 11:16:32,509 INFO L480 AbstractCegarLoop]: Abstraction has has 331 places, 412 transitions, 6824 flow [2021-03-24 11:16:32,509 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 11:16:32,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:32,509 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 11:16:32,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-24 11:16:32,510 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 11:16:32,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:32,510 INFO L82 PathProgramCache]: Analyzing trace with hash -186136773, now seen corresponding path program 23 times [2021-03-24 11:16:32,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:32,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352076998] [2021-03-24 11:16:32,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:32,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:32,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:32,570 INFO L142 QuantifierPusher]: treesize reduction 10, result has 60.0 percent of original size [2021-03-24 11:16:32,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:32,579 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-24 11:16:32,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:32,596 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:16:32,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:32,616 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 11:16:32,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:16:32,647 INFO L142 QuantifierPusher]: treesize reduction 24, result has 71.1 percent of original size [2021-03-24 11:16:32,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:16:32,689 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.0 percent of original size [2021-03-24 11:16:32,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:16:32,755 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.6 percent of original size [2021-03-24 11:16:32,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:16:32,792 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:16:32,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:32,820 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.6 percent of original size [2021-03-24 11:16:32,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:16:32,847 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:16:32,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:16:32,886 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:16:32,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:16:32,926 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.6 percent of original size [2021-03-24 11:16:32,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 11:16:32,973 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.8 percent of original size [2021-03-24 11:16:32,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 11:16:32,988 INFO L142 QuantifierPusher]: treesize reduction 41, result has 58.2 percent of original size [2021-03-24 11:16:32,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 11:16:33,029 INFO L142 QuantifierPusher]: treesize reduction 39, result has 64.5 percent of original size [2021-03-24 11:16:33,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 11:16:33,075 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.8 percent of original size [2021-03-24 11:16:33,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 11:16:33,090 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-24 11:16:33,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:16:33,116 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:16:33,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:33,143 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 11:16:33,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:33,178 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 11:16:33,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:16:33,195 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 11:16:33,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:33,227 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:16:33,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:33,259 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:16:33,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:33,294 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:33,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:33,315 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:33,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:33,316 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:33,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:33,336 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 11:16:33,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352076998] [2021-03-24 11:16:33,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:33,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:16:33,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729082486] [2021-03-24 11:16:33,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:16:33,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:33,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:16:33,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:16:33,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:16:33,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 412 transitions, 6824 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 11:16:33,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:33,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:16:33,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:33,916 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2021-03-24 11:16:34,066 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-03-24 11:16:34,218 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2021-03-24 11:16:36,105 INFO L129 PetriNetUnfolder]: 746/2730 cut-off events. [2021-03-24 11:16:36,105 INFO L130 PetriNetUnfolder]: For 47529/47583 co-relation queries the response was YES. [2021-03-24 11:16:36,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19854 conditions, 2730 events. 746/2730 cut-off events. For 47529/47583 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 26686 event pairs, 316 based on Foata normal form. 31/2725 useless extension candidates. Maximal degree in co-relation 19745. Up to 1715 conditions per place. [2021-03-24 11:16:36,134 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 214 selfloop transitions, 208 changer transitions 38/466 dead transitions. [2021-03-24 11:16:36,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 466 transitions, 8525 flow [2021-03-24 11:16:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-24 11:16:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-24 11:16:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1979 transitions. [2021-03-24 11:16:36,136 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3235775016350556 [2021-03-24 11:16:36,136 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1979 transitions. [2021-03-24 11:16:36,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1979 transitions. [2021-03-24 11:16:36,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:36,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1979 transitions. [2021-03-24 11:16:36,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 89.95454545454545) internal successors, (1979), 22 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:16:36,140 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 11:16:36,140 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 11:16:36,140 INFO L185 Difference]: Start difference. First operand has 331 places, 412 transitions, 6824 flow. Second operand 22 states and 1979 transitions. [2021-03-24 11:16:36,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 466 transitions, 8525 flow [2021-03-24 11:16:36,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 466 transitions, 8292 flow, removed 34 selfloop flow, removed 12 redundant places. [2021-03-24 11:16:36,344 INFO L241 Difference]: Finished difference. Result has 340 places, 397 transitions, 6851 flow [2021-03-24 11:16:36,344 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6609, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=6851, PETRI_PLACES=340, PETRI_TRANSITIONS=397} [2021-03-24 11:16:36,344 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 274 predicate places. [2021-03-24 11:16:36,344 INFO L480 AbstractCegarLoop]: Abstraction has has 340 places, 397 transitions, 6851 flow [2021-03-24 11:16:36,345 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 11:16:36,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:36,345 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 11:16:36,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-24 11:16:36,345 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 11:16:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:36,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1179647659, now seen corresponding path program 24 times [2021-03-24 11:16:36,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:36,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992117569] [2021-03-24 11:16:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:36,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:36,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:36,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:36,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:16:36,427 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-24 11:16:36,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:36,445 INFO L142 QuantifierPusher]: treesize reduction 36, result has 43.8 percent of original size [2021-03-24 11:16:36,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:36,473 INFO L142 QuantifierPusher]: treesize reduction 45, result has 52.1 percent of original size [2021-03-24 11:16:36,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:16:36,513 INFO L142 QuantifierPusher]: treesize reduction 33, result has 68.3 percent of original size [2021-03-24 11:16:36,513 INFO L147 QuantifierPusher]: treesize reduction 8, result has 88.7 percent of original size 63 [2021-03-24 11:16:36,563 INFO L142 QuantifierPusher]: treesize reduction 16, result has 74.6 percent of original size [2021-03-24 11:16:36,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:16:36,599 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:16:36,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:16:36,631 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 11:16:36,631 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:16:36,672 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 11:16:36,672 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:16:36,712 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 11:16:36,712 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:16:36,745 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:16:36,745 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:16:36,757 INFO L142 QuantifierPusher]: treesize reduction 21, result has 61.1 percent of original size [2021-03-24 11:16:36,757 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:36,784 INFO L142 QuantifierPusher]: treesize reduction 21, result has 61.1 percent of original size [2021-03-24 11:16:36,785 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:36,813 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:16:36,813 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:16:36,843 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 11:16:36,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:16:36,892 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:16:36,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:16:36,922 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:16:36,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:36,942 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:16:36,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:36,959 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:36,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:36,959 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:16:36,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:36,980 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:36,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:37,002 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:37,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:37,023 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:37,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:37,042 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 11:16:37,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992117569] [2021-03-24 11:16:37,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:37,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:16:37,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340312913] [2021-03-24 11:16:37,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:16:37,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:37,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:16:37,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:16:37,045 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:37,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 397 transitions, 6851 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 11:16:37,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:37,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:37,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:39,066 INFO L129 PetriNetUnfolder]: 742/2697 cut-off events. [2021-03-24 11:16:39,066 INFO L130 PetriNetUnfolder]: For 49755/49793 co-relation queries the response was YES. [2021-03-24 11:16:39,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20044 conditions, 2697 events. 742/2697 cut-off events. For 49755/49793 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 26165 event pairs, 396 based on Foata normal form. 8/2660 useless extension candidates. Maximal degree in co-relation 19934. Up to 2264 conditions per place. [2021-03-24 11:16:39,090 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 354 selfloop transitions, 47 changer transitions 25/436 dead transitions. [2021-03-24 11:16:39,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 436 transitions, 8273 flow [2021-03-24 11:16:39,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:16:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:16:39,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2598 transitions. [2021-03-24 11:16:39,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49185914426353655 [2021-03-24 11:16:39,092 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2598 transitions. [2021-03-24 11:16:39,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2598 transitions. [2021-03-24 11:16:39,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:39,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2598 transitions. [2021-03-24 11:16:39,094 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 11:16:39,096 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 11:16:39,096 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 11:16:39,096 INFO L185 Difference]: Start difference. First operand has 340 places, 397 transitions, 6851 flow. Second operand 19 states and 2598 transitions. [2021-03-24 11:16:39,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 436 transitions, 8273 flow [2021-03-24 11:16:39,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 436 transitions, 7799 flow, removed 48 selfloop flow, removed 20 redundant places. [2021-03-24 11:16:39,288 INFO L241 Difference]: Finished difference. Result has 331 places, 399 transitions, 6575 flow [2021-03-24 11:16:39,288 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6401, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6575, PETRI_PLACES=331, PETRI_TRANSITIONS=399} [2021-03-24 11:16:39,288 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 265 predicate places. [2021-03-24 11:16:39,288 INFO L480 AbstractCegarLoop]: Abstraction has has 331 places, 399 transitions, 6575 flow [2021-03-24 11:16:39,289 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 11:16:39,289 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:39,289 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 11:16:39,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-24 11:16:39,289 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 11:16:39,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:39,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1336289043, now seen corresponding path program 25 times [2021-03-24 11:16:39,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:39,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451732257] [2021-03-24 11:16:39,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:39,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:39,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:39,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:39,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:39,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:39,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:39,391 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.9 percent of original size [2021-03-24 11:16:39,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:39,413 INFO L142 QuantifierPusher]: treesize reduction 36, result has 56.1 percent of original size [2021-03-24 11:16:39,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:39,448 INFO L142 QuantifierPusher]: treesize reduction 28, result has 69.6 percent of original size [2021-03-24 11:16:39,449 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:16:39,494 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 11:16:39,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:39,512 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 11:16:39,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:39,529 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:39,530 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:39,563 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:39,564 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:39,599 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:16:39,600 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:16:39,639 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:16:39,640 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:16:39,653 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:39,653 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:39,686 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:39,686 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:39,719 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 11:16:39,719 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:16:39,752 INFO L142 QuantifierPusher]: treesize reduction 51, result has 39.3 percent of original size [2021-03-24 11:16:39,753 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:39,785 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 11:16:39,786 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:16:39,821 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.2 percent of original size [2021-03-24 11:16:39,821 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:16:39,856 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:16:39,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:39,878 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:16:39,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:39,895 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:39,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:39,896 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:16:39,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:39,917 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:39,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:39,939 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:39,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:39,958 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:39,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:39,977 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 11:16:39,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451732257] [2021-03-24 11:16:39,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:39,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:39,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937863229] [2021-03-24 11:16:39,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:39,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:39,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:39,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:39,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:39,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 399 transitions, 6575 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 11:16:39,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:39,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:39,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:40,656 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 11:16:40,816 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-24 11:16:41,056 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-24 11:16:42,218 INFO L129 PetriNetUnfolder]: 757/2754 cut-off events. [2021-03-24 11:16:42,219 INFO L130 PetriNetUnfolder]: For 46424/46463 co-relation queries the response was YES. [2021-03-24 11:16:42,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19819 conditions, 2754 events. 757/2754 cut-off events. For 46424/46463 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 26842 event pairs, 390 based on Foata normal form. 29/2737 useless extension candidates. Maximal degree in co-relation 19710. Up to 2105 conditions per place. [2021-03-24 11:16:42,248 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 302 selfloop transitions, 109 changer transitions 19/440 dead transitions. [2021-03-24 11:16:42,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 440 transitions, 8104 flow [2021-03-24 11:16:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:42,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:42,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2478 transitions. [2021-03-24 11:16:42,250 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4952038369304556 [2021-03-24 11:16:42,250 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2478 transitions. [2021-03-24 11:16:42,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2478 transitions. [2021-03-24 11:16:42,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:42,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2478 transitions. [2021-03-24 11:16:42,251 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 11:16:42,253 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 11:16:42,254 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 11:16:42,254 INFO L185 Difference]: Start difference. First operand has 331 places, 399 transitions, 6575 flow. Second operand 18 states and 2478 transitions. [2021-03-24 11:16:42,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 440 transitions, 8104 flow [2021-03-24 11:16:42,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 440 transitions, 7972 flow, removed 12 selfloop flow, removed 16 redundant places. [2021-03-24 11:16:42,444 INFO L241 Difference]: Finished difference. Result has 332 places, 409 transitions, 6924 flow [2021-03-24 11:16:42,444 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6455, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6924, PETRI_PLACES=332, PETRI_TRANSITIONS=409} [2021-03-24 11:16:42,444 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 266 predicate places. [2021-03-24 11:16:42,444 INFO L480 AbstractCegarLoop]: Abstraction has has 332 places, 409 transitions, 6924 flow [2021-03-24 11:16:42,445 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 11:16:42,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:42,445 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 11:16:42,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-24 11:16:42,445 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 11:16:42,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:42,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1505847055, now seen corresponding path program 26 times [2021-03-24 11:16:42,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:42,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008583063] [2021-03-24 11:16:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:42,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:42,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:42,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:42,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:42,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:42,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:42,512 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.9 percent of original size [2021-03-24 11:16:42,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:42,534 INFO L142 QuantifierPusher]: treesize reduction 36, result has 56.1 percent of original size [2021-03-24 11:16:42,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:42,570 INFO L142 QuantifierPusher]: treesize reduction 28, result has 69.6 percent of original size [2021-03-24 11:16:42,570 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:16:42,616 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 11:16:42,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:42,634 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 11:16:42,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:42,652 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:42,652 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:42,686 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:42,687 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:42,722 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:16:42,723 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:16:42,763 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:16:42,763 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:16:42,777 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:42,777 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:42,810 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:42,810 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:42,843 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:16:42,843 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:42,876 INFO L142 QuantifierPusher]: treesize reduction 51, result has 39.3 percent of original size [2021-03-24 11:16:42,877 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:42,910 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 11:16:42,911 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:16:42,946 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.2 percent of original size [2021-03-24 11:16:42,947 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:16:42,982 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:16:42,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:43,005 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:16:43,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:43,022 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:43,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:43,023 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:16:43,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:43,045 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:43,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:43,068 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:43,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:43,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:43,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:43,111 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 11:16:43,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008583063] [2021-03-24 11:16:43,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:43,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:43,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82053371] [2021-03-24 11:16:43,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:43,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:43,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:43,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:43,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:43,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 409 transitions, 6924 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 11:16:43,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:43,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:43,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:44,191 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-24 11:16:45,378 INFO L129 PetriNetUnfolder]: 764/2779 cut-off events. [2021-03-24 11:16:45,378 INFO L130 PetriNetUnfolder]: For 49523/49562 co-relation queries the response was YES. [2021-03-24 11:16:45,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20366 conditions, 2779 events. 764/2779 cut-off events. For 49523/49562 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 27108 event pairs, 387 based on Foata normal form. 21/2754 useless extension candidates. Maximal degree in co-relation 20256. Up to 2123 conditions per place. [2021-03-24 11:16:45,407 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 317 selfloop transitions, 104 changer transitions 19/450 dead transitions. [2021-03-24 11:16:45,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 450 transitions, 8518 flow [2021-03-24 11:16:45,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:45,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:45,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2478 transitions. [2021-03-24 11:16:45,409 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4952038369304556 [2021-03-24 11:16:45,409 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2478 transitions. [2021-03-24 11:16:45,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2478 transitions. [2021-03-24 11:16:45,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:45,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2478 transitions. [2021-03-24 11:16:45,411 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 11:16:45,413 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 11:16:45,413 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 11:16:45,413 INFO L185 Difference]: Start difference. First operand has 332 places, 409 transitions, 6924 flow. Second operand 18 states and 2478 transitions. [2021-03-24 11:16:45,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 450 transitions, 8518 flow [2021-03-24 11:16:45,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 450 transitions, 8185 flow, removed 45 selfloop flow, removed 15 redundant places. [2021-03-24 11:16:45,624 INFO L241 Difference]: Finished difference. Result has 335 places, 418 transitions, 7071 flow [2021-03-24 11:16:45,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6605, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7071, PETRI_PLACES=335, PETRI_TRANSITIONS=418} [2021-03-24 11:16:45,624 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 269 predicate places. [2021-03-24 11:16:45,624 INFO L480 AbstractCegarLoop]: Abstraction has has 335 places, 418 transitions, 7071 flow [2021-03-24 11:16:45,624 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 11:16:45,624 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:45,625 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:45,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-24 11:16:45,625 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 11:16:45,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:45,625 INFO L82 PathProgramCache]: Analyzing trace with hash -2031501143, now seen corresponding path program 27 times [2021-03-24 11:16:45,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:45,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297743479] [2021-03-24 11:16:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:45,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:45,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:45,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:45,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:45,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:45,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:45,694 INFO L142 QuantifierPusher]: treesize reduction 29, result has 53.2 percent of original size [2021-03-24 11:16:45,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:45,715 INFO L142 QuantifierPusher]: treesize reduction 39, result has 54.1 percent of original size [2021-03-24 11:16:45,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:45,751 INFO L142 QuantifierPusher]: treesize reduction 31, result has 67.4 percent of original size [2021-03-24 11:16:45,751 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:16:45,797 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-03-24 11:16:45,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:45,815 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.0 percent of original size [2021-03-24 11:16:45,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:45,832 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:45,833 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:45,866 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:45,867 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:45,901 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:16:45,902 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:16:45,941 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:16:45,941 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:16:45,954 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:45,955 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:45,986 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:45,986 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:46,018 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:16:46,019 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:46,051 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:46,051 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:46,086 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 11:16:46,086 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:16:46,136 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:16:46,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:16:46,167 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-24 11:16:46,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:16:46,168 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:16:46,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:46,191 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:46,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:46,207 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:16:46,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:46,229 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:46,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:46,252 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:46,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:46,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:46,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:46,295 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 11:16:46,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297743479] [2021-03-24 11:16:46,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:46,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:46,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310053729] [2021-03-24 11:16:46,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:46,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:46,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:46,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:46,297 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:46,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 418 transitions, 7071 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 11:16:46,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:46,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:46,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:47,032 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 11:16:47,247 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2021-03-24 11:16:48,674 INFO L129 PetriNetUnfolder]: 782/2821 cut-off events. [2021-03-24 11:16:48,674 INFO L130 PetriNetUnfolder]: For 54204/54249 co-relation queries the response was YES. [2021-03-24 11:16:48,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21150 conditions, 2821 events. 782/2821 cut-off events. For 54204/54249 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 27552 event pairs, 394 based on Foata normal form. 22/2798 useless extension candidates. Maximal degree in co-relation 21038. Up to 2106 conditions per place. [2021-03-24 11:16:48,706 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 317 selfloop transitions, 120 changer transitions 23/470 dead transitions. [2021-03-24 11:16:48,706 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 470 transitions, 8868 flow [2021-03-24 11:16:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2485 transitions. [2021-03-24 11:16:48,708 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4966027178257394 [2021-03-24 11:16:48,708 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2485 transitions. [2021-03-24 11:16:48,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2485 transitions. [2021-03-24 11:16:48,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:48,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2485 transitions. [2021-03-24 11:16:48,709 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 11:16:48,711 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 11:16:48,711 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 11:16:48,711 INFO L185 Difference]: Start difference. First operand has 335 places, 418 transitions, 7071 flow. Second operand 18 states and 2485 transitions. [2021-03-24 11:16:48,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 470 transitions, 8868 flow [2021-03-24 11:16:48,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 470 transitions, 8623 flow, removed 57 selfloop flow, removed 13 redundant places. [2021-03-24 11:16:48,962 INFO L241 Difference]: Finished difference. Result has 341 places, 426 transitions, 7370 flow [2021-03-24 11:16:48,963 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6831, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7370, PETRI_PLACES=341, PETRI_TRANSITIONS=426} [2021-03-24 11:16:48,963 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 275 predicate places. [2021-03-24 11:16:48,963 INFO L480 AbstractCegarLoop]: Abstraction has has 341 places, 426 transitions, 7370 flow [2021-03-24 11:16:48,963 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 11:16:48,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:48,963 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 11:16:48,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-24 11:16:48,963 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 11:16:48,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:48,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1083578263, now seen corresponding path program 28 times [2021-03-24 11:16:48,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:48,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831495533] [2021-03-24 11:16:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:49,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:49,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:49,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:49,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:49,020 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:16:49,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:49,037 INFO L142 QuantifierPusher]: treesize reduction 29, result has 51.7 percent of original size [2021-03-24 11:16:49,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:16:49,059 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-03-24 11:16:49,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:16:49,094 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.7 percent of original size [2021-03-24 11:16:49,095 INFO L147 QuantifierPusher]: treesize reduction 5, result has 92.6 percent of original size 63 [2021-03-24 11:16:49,136 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.8 percent of original size [2021-03-24 11:16:49,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:16:49,164 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size [2021-03-24 11:16:49,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:16:49,190 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:16:49,190 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:16:49,223 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:16:49,223 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:16:49,258 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-03-24 11:16:49,258 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 11:16:49,293 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-03-24 11:16:49,294 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:16:49,307 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.4 percent of original size [2021-03-24 11:16:49,307 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:49,319 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-24 11:16:49,320 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:49,351 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-24 11:16:49,351 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:49,383 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.4 percent of original size [2021-03-24 11:16:49,384 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:49,418 INFO L142 QuantifierPusher]: treesize reduction 46, result has 48.9 percent of original size [2021-03-24 11:16:49,418 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:16:49,454 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:16:49,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:16:49,475 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:16:49,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:16:49,490 INFO L142 QuantifierPusher]: treesize reduction 16, result has 52.9 percent of original size [2021-03-24 11:16:49,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:16:49,509 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:16:49,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:16:49,531 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-03-24 11:16:49,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:16:49,550 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:16:49,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:49,571 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:16:49,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:49,571 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:49,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:49,591 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 11:16:49,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831495533] [2021-03-24 11:16:49,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:49,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:16:49,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866704197] [2021-03-24 11:16:49,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:16:49,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:49,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:16:49,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:16:49,593 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:49,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 426 transitions, 7370 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 11:16:49,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:49,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:49,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:51,874 INFO L129 PetriNetUnfolder]: 774/2806 cut-off events. [2021-03-24 11:16:51,875 INFO L130 PetriNetUnfolder]: For 57522/57563 co-relation queries the response was YES. [2021-03-24 11:16:51,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21379 conditions, 2806 events. 774/2806 cut-off events. For 57522/57563 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 27446 event pairs, 402 based on Foata normal form. 20/2778 useless extension candidates. Maximal degree in co-relation 21264. Up to 2125 conditions per place. [2021-03-24 11:16:51,906 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 317 selfloop transitions, 133 changer transitions 12/472 dead transitions. [2021-03-24 11:16:51,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 472 transitions, 9069 flow [2021-03-24 11:16:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:16:51,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:16:51,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2616 transitions. [2021-03-24 11:16:51,908 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49526694433926544 [2021-03-24 11:16:51,908 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2616 transitions. [2021-03-24 11:16:51,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2616 transitions. [2021-03-24 11:16:51,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:51,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2616 transitions. [2021-03-24 11:16:51,910 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 11:16:51,912 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 11:16:51,912 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 11:16:51,912 INFO L185 Difference]: Start difference. First operand has 341 places, 426 transitions, 7370 flow. Second operand 19 states and 2616 transitions. [2021-03-24 11:16:51,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 472 transitions, 9069 flow [2021-03-24 11:16:52,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 472 transitions, 8836 flow, removed 53 selfloop flow, removed 13 redundant places. [2021-03-24 11:16:52,161 INFO L241 Difference]: Finished difference. Result has 347 places, 432 transitions, 7601 flow [2021-03-24 11:16:52,161 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7144, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7601, PETRI_PLACES=347, PETRI_TRANSITIONS=432} [2021-03-24 11:16:52,161 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 281 predicate places. [2021-03-24 11:16:52,161 INFO L480 AbstractCegarLoop]: Abstraction has has 347 places, 432 transitions, 7601 flow [2021-03-24 11:16:52,161 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 11:16:52,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:52,162 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 11:16:52,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-24 11:16:52,162 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 11:16:52,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:52,162 INFO L82 PathProgramCache]: Analyzing trace with hash 758718343, now seen corresponding path program 29 times [2021-03-24 11:16:52,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:52,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607532730] [2021-03-24 11:16:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:52,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:52,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:52,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:52,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:52,235 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:16:52,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:52,252 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:16:52,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:16:52,289 INFO L142 QuantifierPusher]: treesize reduction 34, result has 61.8 percent of original size [2021-03-24 11:16:52,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:16:52,341 INFO L142 QuantifierPusher]: treesize reduction 29, result has 70.7 percent of original size [2021-03-24 11:16:52,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:16:52,393 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.8 percent of original size [2021-03-24 11:16:52,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:16:52,421 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size [2021-03-24 11:16:52,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:16:52,448 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.9 percent of original size [2021-03-24 11:16:52,448 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:16:52,483 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.9 percent of original size [2021-03-24 11:16:52,483 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:16:52,519 INFO L142 QuantifierPusher]: treesize reduction 16, result has 75.0 percent of original size [2021-03-24 11:16:52,519 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 11:16:52,555 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:16:52,555 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:16:52,569 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:16:52,569 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:52,581 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:16:52,581 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:52,612 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:16:52,613 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:52,644 INFO L142 QuantifierPusher]: treesize reduction 41, result has 49.4 percent of original size [2021-03-24 11:16:52,645 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:16:52,680 INFO L142 QuantifierPusher]: treesize reduction 39, result has 56.7 percent of original size [2021-03-24 11:16:52,681 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 11:16:52,720 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:16:52,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:16:52,741 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:16:52,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:16:52,775 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:16:52,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:16:52,801 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:16:52,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:16:52,817 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-03-24 11:16:52,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:16:52,831 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:52,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:52,846 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:52,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:52,846 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:52,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:52,861 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 11:16:52,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607532730] [2021-03-24 11:16:52,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:52,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:16:52,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280811663] [2021-03-24 11:16:52,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:16:52,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:52,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:16:52,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:16:52,863 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:52,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 432 transitions, 7601 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 11:16:52,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:52,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:52,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:54,862 INFO L129 PetriNetUnfolder]: 781/2834 cut-off events. [2021-03-24 11:16:54,862 INFO L130 PetriNetUnfolder]: For 59432/59485 co-relation queries the response was YES. [2021-03-24 11:16:54,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21809 conditions, 2834 events. 781/2834 cut-off events. For 59432/59485 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 27814 event pairs, 404 based on Foata normal form. 26/2817 useless extension candidates. Maximal degree in co-relation 21692. Up to 2192 conditions per place. [2021-03-24 11:16:54,900 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 332 selfloop transitions, 112 changer transitions 9/463 dead transitions. [2021-03-24 11:16:54,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 463 transitions, 9009 flow [2021-03-24 11:16:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:16:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:16:54,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2610 transitions. [2021-03-24 11:16:54,902 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4941310109806891 [2021-03-24 11:16:54,902 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2610 transitions. [2021-03-24 11:16:54,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2610 transitions. [2021-03-24 11:16:54,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:54,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2610 transitions. [2021-03-24 11:16:54,904 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 11:16:54,906 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 11:16:54,906 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 11:16:54,906 INFO L185 Difference]: Start difference. First operand has 347 places, 432 transitions, 7601 flow. Second operand 19 states and 2610 transitions. [2021-03-24 11:16:54,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 463 transitions, 9009 flow [2021-03-24 11:16:55,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 463 transitions, 8670 flow, removed 53 selfloop flow, removed 13 redundant places. [2021-03-24 11:16:55,219 INFO L241 Difference]: Finished difference. Result has 355 places, 441 transitions, 7743 flow [2021-03-24 11:16:55,220 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7266, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7743, PETRI_PLACES=355, PETRI_TRANSITIONS=441} [2021-03-24 11:16:55,220 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 289 predicate places. [2021-03-24 11:16:55,220 INFO L480 AbstractCegarLoop]: Abstraction has has 355 places, 441 transitions, 7743 flow [2021-03-24 11:16:55,221 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 11:16:55,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:55,221 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 11:16:55,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-24 11:16:55,221 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 11:16:55,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:55,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1162004133, now seen corresponding path program 30 times [2021-03-24 11:16:55,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:55,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956108349] [2021-03-24 11:16:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:55,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:55,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:55,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:55,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:55,291 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:16:55,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:55,308 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:16:55,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:55,327 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:16:55,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:16:55,362 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:16:55,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:16:55,403 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:55,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:55,418 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:16:55,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:55,434 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-03-24 11:16:55,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:55,466 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:55,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:55,497 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:55,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:55,527 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:16:55,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:16:55,560 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:16:55,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:55,599 INFO L142 QuantifierPusher]: treesize reduction 71, result has 43.2 percent of original size [2021-03-24 11:16:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:16:55,642 INFO L142 QuantifierPusher]: treesize reduction 71, result has 40.8 percent of original size [2021-03-24 11:16:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:16:55,661 INFO L142 QuantifierPusher]: treesize reduction 68, result has 41.9 percent of original size [2021-03-24 11:16:55,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:16:55,703 INFO L142 QuantifierPusher]: treesize reduction 68, result has 38.7 percent of original size [2021-03-24 11:16:55,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:16:55,744 INFO L142 QuantifierPusher]: treesize reduction 69, result has 45.7 percent of original size [2021-03-24 11:16:55,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:16:55,792 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:16:55,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:55,817 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:16:55,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:55,836 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:16:55,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:16:55,837 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:16:55,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:16:55,872 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:16:55,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:55,918 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:16:55,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:55,940 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:55,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:55,962 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 11:16:55,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956108349] [2021-03-24 11:16:55,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:55,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:55,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471353015] [2021-03-24 11:16:55,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:55,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:55,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:55,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:55,964 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:55,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 441 transitions, 7743 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 11:16:55,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:55,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:55,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:16:56,737 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:16:56,962 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-24 11:16:57,197 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-03-24 11:16:57,510 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-03-24 11:16:58,588 INFO L129 PetriNetUnfolder]: 790/2861 cut-off events. [2021-03-24 11:16:58,589 INFO L130 PetriNetUnfolder]: For 63901/63944 co-relation queries the response was YES. [2021-03-24 11:16:58,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22280 conditions, 2861 events. 790/2861 cut-off events. For 63901/63944 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 28107 event pairs, 414 based on Foata normal form. 10/2826 useless extension candidates. Maximal degree in co-relation 22159. Up to 2316 conditions per place. [2021-03-24 11:16:58,622 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 359 selfloop transitions, 67 changer transitions 31/467 dead transitions. [2021-03-24 11:16:58,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 467 transitions, 8977 flow [2021-03-24 11:16:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:16:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:16:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 11:16:58,624 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 11:16:58,624 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 11:16:58,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 11:16:58,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:16:58,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 11:16:58,626 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 11:16:58,628 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 11:16:58,628 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 11:16:58,628 INFO L185 Difference]: Start difference. First operand has 355 places, 441 transitions, 7743 flow. Second operand 18 states and 2473 transitions. [2021-03-24 11:16:58,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 467 transitions, 8977 flow [2021-03-24 11:16:59,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 467 transitions, 8665 flow, removed 60 selfloop flow, removed 13 redundant places. [2021-03-24 11:16:59,011 INFO L241 Difference]: Finished difference. Result has 361 places, 428 transitions, 7358 flow [2021-03-24 11:16:59,011 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7433, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7358, PETRI_PLACES=361, PETRI_TRANSITIONS=428} [2021-03-24 11:16:59,011 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 295 predicate places. [2021-03-24 11:16:59,011 INFO L480 AbstractCegarLoop]: Abstraction has has 361 places, 428 transitions, 7358 flow [2021-03-24 11:16:59,012 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 11:16:59,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:16:59,012 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 11:16:59,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-24 11:16:59,012 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 11:16:59,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:16:59,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1702605149, now seen corresponding path program 31 times [2021-03-24 11:16:59,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:16:59,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249145598] [2021-03-24 11:16:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:16:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:16:59,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:59,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:16:59,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:59,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:16:59,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:16:59,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:16:59,077 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.9 percent of original size [2021-03-24 11:16:59,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:16:59,098 INFO L142 QuantifierPusher]: treesize reduction 36, result has 56.1 percent of original size [2021-03-24 11:16:59,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:16:59,132 INFO L142 QuantifierPusher]: treesize reduction 28, result has 69.6 percent of original size [2021-03-24 11:16:59,133 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:16:59,177 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 11:16:59,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:16:59,194 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 11:16:59,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:16:59,211 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:59,212 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:59,245 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:16:59,245 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:16:59,280 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:16:59,280 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:16:59,319 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:16:59,319 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:16:59,332 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:16:59,333 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:16:59,364 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:16:59,364 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:59,395 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:16:59,396 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:16:59,428 INFO L142 QuantifierPusher]: treesize reduction 51, result has 39.3 percent of original size [2021-03-24 11:16:59,428 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:16:59,460 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 11:16:59,461 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:16:59,495 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.2 percent of original size [2021-03-24 11:16:59,496 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:16:59,530 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:16:59,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:59,552 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:16:59,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:16:59,569 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:59,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:59,570 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:16:59,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:59,591 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:16:59,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:16:59,614 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:16:59,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:16:59,634 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:16:59,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:16:59,654 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 11:16:59,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249145598] [2021-03-24 11:16:59,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:16:59,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:16:59,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981196462] [2021-03-24 11:16:59,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:16:59,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:16:59,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:16:59,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:16:59,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:16:59,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 428 transitions, 7358 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 11:16:59,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:16:59,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:16:59,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:00,569 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-03-24 11:17:00,745 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-03-24 11:17:02,010 INFO L129 PetriNetUnfolder]: 776/2831 cut-off events. [2021-03-24 11:17:02,010 INFO L130 PetriNetUnfolder]: For 65911/65952 co-relation queries the response was YES. [2021-03-24 11:17:02,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22155 conditions, 2831 events. 776/2831 cut-off events. For 65911/65952 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 27768 event pairs, 410 based on Foata normal form. 27/2813 useless extension candidates. Maximal degree in co-relation 22031. Up to 2168 conditions per place. [2021-03-24 11:17:02,039 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 325 selfloop transitions, 114 changer transitions 19/468 dead transitions. [2021-03-24 11:17:02,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 468 transitions, 8961 flow [2021-03-24 11:17:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2477 transitions. [2021-03-24 11:17:02,041 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49500399680255797 [2021-03-24 11:17:02,041 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2477 transitions. [2021-03-24 11:17:02,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2477 transitions. [2021-03-24 11:17:02,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:02,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2477 transitions. [2021-03-24 11:17:02,042 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 11:17:02,044 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 11:17:02,045 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 11:17:02,045 INFO L185 Difference]: Start difference. First operand has 361 places, 428 transitions, 7358 flow. Second operand 18 states and 2477 transitions. [2021-03-24 11:17:02,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 468 transitions, 8961 flow [2021-03-24 11:17:02,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 468 transitions, 8793 flow, removed 14 selfloop flow, removed 15 redundant places. [2021-03-24 11:17:02,326 INFO L241 Difference]: Finished difference. Result has 361 places, 431 transitions, 7551 flow [2021-03-24 11:17:02,326 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7200, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7551, PETRI_PLACES=361, PETRI_TRANSITIONS=431} [2021-03-24 11:17:02,327 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 295 predicate places. [2021-03-24 11:17:02,327 INFO L480 AbstractCegarLoop]: Abstraction has has 361 places, 431 transitions, 7551 flow [2021-03-24 11:17:02,327 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 11:17:02,327 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:02,327 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 11:17:02,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-24 11:17:02,327 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 11:17:02,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:02,328 INFO L82 PathProgramCache]: Analyzing trace with hash -488690317, now seen corresponding path program 32 times [2021-03-24 11:17:02,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:02,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777187189] [2021-03-24 11:17:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:02,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:02,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:02,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:02,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:02,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:02,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:02,393 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.9 percent of original size [2021-03-24 11:17:02,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:17:02,415 INFO L142 QuantifierPusher]: treesize reduction 36, result has 56.1 percent of original size [2021-03-24 11:17:02,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:17:02,449 INFO L142 QuantifierPusher]: treesize reduction 28, result has 69.6 percent of original size [2021-03-24 11:17:02,450 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:17:02,494 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 11:17:02,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:02,511 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 11:17:02,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:02,528 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:17:02,529 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:17:02,562 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:17:02,562 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:17:02,597 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:17:02,598 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:17:02,637 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:17:02,637 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:17:02,651 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:17:02,651 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:02,683 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:17:02,683 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:02,715 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:17:02,716 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:17:02,748 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:17:02,748 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:02,783 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 11:17:02,783 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:17:02,818 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 11:17:02,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:17:02,840 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:17:02,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:02,861 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:17:02,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:17:02,878 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:17:02,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:02,879 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:17:02,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:02,900 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:17:02,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:02,923 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:02,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:02,944 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:02,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:02,964 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 11:17:02,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777187189] [2021-03-24 11:17:02,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:02,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:02,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691477614] [2021-03-24 11:17:02,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:02,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:02,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:02,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:02,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:02,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 431 transitions, 7551 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 11:17:02,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:02,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:02,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:03,908 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2021-03-24 11:17:05,487 INFO L129 PetriNetUnfolder]: 760/2796 cut-off events. [2021-03-24 11:17:05,487 INFO L130 PetriNetUnfolder]: For 65404/65443 co-relation queries the response was YES. [2021-03-24 11:17:05,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21904 conditions, 2796 events. 760/2796 cut-off events. For 65404/65443 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 27461 event pairs, 392 based on Foata normal form. 21/2775 useless extension candidates. Maximal degree in co-relation 21780. Up to 2104 conditions per place. [2021-03-24 11:17:05,521 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 321 selfloop transitions, 122 changer transitions 19/472 dead transitions. [2021-03-24 11:17:05,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 472 transitions, 9131 flow [2021-03-24 11:17:05,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:05,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:05,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2485 transitions. [2021-03-24 11:17:05,523 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4966027178257394 [2021-03-24 11:17:05,523 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2485 transitions. [2021-03-24 11:17:05,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2485 transitions. [2021-03-24 11:17:05,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:05,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2485 transitions. [2021-03-24 11:17:05,525 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 11:17:05,527 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 11:17:05,527 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 11:17:05,527 INFO L185 Difference]: Start difference. First operand has 361 places, 431 transitions, 7551 flow. Second operand 18 states and 2485 transitions. [2021-03-24 11:17:05,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 472 transitions, 9131 flow [2021-03-24 11:17:05,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 472 transitions, 8871 flow, removed 24 selfloop flow, removed 14 redundant places. [2021-03-24 11:17:05,830 INFO L241 Difference]: Finished difference. Result has 364 places, 434 transitions, 7649 flow [2021-03-24 11:17:05,831 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7295, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7649, PETRI_PLACES=364, PETRI_TRANSITIONS=434} [2021-03-24 11:17:05,831 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 298 predicate places. [2021-03-24 11:17:05,831 INFO L480 AbstractCegarLoop]: Abstraction has has 364 places, 434 transitions, 7649 flow [2021-03-24 11:17:05,831 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 11:17:05,831 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:05,831 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 11:17:05,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-24 11:17:05,832 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 11:17:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:05,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1871474217, now seen corresponding path program 33 times [2021-03-24 11:17:05,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:05,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417645499] [2021-03-24 11:17:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:05,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:05,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:05,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:05,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:05,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:05,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:05,898 INFO L142 QuantifierPusher]: treesize reduction 29, result has 53.2 percent of original size [2021-03-24 11:17:05,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:17:05,920 INFO L142 QuantifierPusher]: treesize reduction 39, result has 54.1 percent of original size [2021-03-24 11:17:05,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:17:05,957 INFO L142 QuantifierPusher]: treesize reduction 31, result has 67.4 percent of original size [2021-03-24 11:17:05,957 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:17:06,002 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-03-24 11:17:06,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:06,020 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.0 percent of original size [2021-03-24 11:17:06,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:06,037 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:17:06,038 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:17:06,072 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:17:06,072 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:17:06,107 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:17:06,107 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:17:06,147 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:17:06,147 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:17:06,160 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:17:06,161 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:06,193 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:17:06,193 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:06,225 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:17:06,225 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:17:06,258 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.7 percent of original size [2021-03-24 11:17:06,258 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:17:06,294 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 11:17:06,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:17:06,345 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:17:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:17:06,376 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:17:06,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:06,397 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:17:06,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:17:06,414 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:06,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:06,415 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:17:06,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:06,436 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:06,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:06,459 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:06,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:06,480 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:06,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:06,500 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 11:17:06,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417645499] [2021-03-24 11:17:06,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:06,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:06,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789884618] [2021-03-24 11:17:06,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:06,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:06,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:06,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:06,502 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:06,503 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 434 transitions, 7649 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 11:17:06,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:06,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:06,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:07,233 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 11:17:07,444 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2021-03-24 11:17:07,658 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2021-03-24 11:17:08,912 INFO L129 PetriNetUnfolder]: 754/2781 cut-off events. [2021-03-24 11:17:08,912 INFO L130 PetriNetUnfolder]: For 68173/68216 co-relation queries the response was YES. [2021-03-24 11:17:08,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22056 conditions, 2781 events. 754/2781 cut-off events. For 68173/68216 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 27279 event pairs, 401 based on Foata normal form. 21/2761 useless extension candidates. Maximal degree in co-relation 21931. Up to 2145 conditions per place. [2021-03-24 11:17:08,944 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 341 selfloop transitions, 93 changer transitions 25/469 dead transitions. [2021-03-24 11:17:08,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 469 transitions, 9122 flow [2021-03-24 11:17:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2479 transitions. [2021-03-24 11:17:08,946 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4954036770583533 [2021-03-24 11:17:08,946 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2479 transitions. [2021-03-24 11:17:08,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2479 transitions. [2021-03-24 11:17:08,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:08,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2479 transitions. [2021-03-24 11:17:08,947 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 11:17:08,949 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 11:17:08,949 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 11:17:08,949 INFO L185 Difference]: Start difference. First operand has 364 places, 434 transitions, 7649 flow. Second operand 18 states and 2479 transitions. [2021-03-24 11:17:08,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 469 transitions, 9122 flow [2021-03-24 11:17:09,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 469 transitions, 8723 flow, removed 48 selfloop flow, removed 15 redundant places. [2021-03-24 11:17:09,257 INFO L241 Difference]: Finished difference. Result has 368 places, 429 transitions, 7425 flow [2021-03-24 11:17:09,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7265, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7425, PETRI_PLACES=368, PETRI_TRANSITIONS=429} [2021-03-24 11:17:09,257 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 302 predicate places. [2021-03-24 11:17:09,257 INFO L480 AbstractCegarLoop]: Abstraction has has 368 places, 429 transitions, 7425 flow [2021-03-24 11:17:09,258 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 11:17:09,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:09,258 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 11:17:09,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-24 11:17:09,258 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 11:17:09,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:09,258 INFO L82 PathProgramCache]: Analyzing trace with hash 955476437, now seen corresponding path program 34 times [2021-03-24 11:17:09,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:09,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25463499] [2021-03-24 11:17:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:09,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:09,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:09,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:09,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:09,315 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:09,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:09,333 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:17:09,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:17:09,355 INFO L142 QuantifierPusher]: treesize reduction 34, result has 61.8 percent of original size [2021-03-24 11:17:09,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:17:09,389 INFO L142 QuantifierPusher]: treesize reduction 29, result has 70.7 percent of original size [2021-03-24 11:17:09,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:17:09,435 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.8 percent of original size [2021-03-24 11:17:09,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:17:09,463 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size [2021-03-24 11:17:09,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:17:09,489 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.9 percent of original size [2021-03-24 11:17:09,490 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:17:09,523 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.9 percent of original size [2021-03-24 11:17:09,523 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:17:09,558 INFO L142 QuantifierPusher]: treesize reduction 16, result has 75.0 percent of original size [2021-03-24 11:17:09,559 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 11:17:09,595 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:17:09,595 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:17:09,609 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:17:09,609 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:09,621 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:17:09,622 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:17:09,652 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:17:09,653 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:17:09,684 INFO L142 QuantifierPusher]: treesize reduction 41, result has 49.4 percent of original size [2021-03-24 11:17:09,685 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:17:09,721 INFO L142 QuantifierPusher]: treesize reduction 39, result has 56.7 percent of original size [2021-03-24 11:17:09,721 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 11:17:09,762 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:17:09,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:17:09,783 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:17:09,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:17:09,797 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:17:09,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:17:09,816 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:17:09,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:17:09,837 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-03-24 11:17:09,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:17:09,856 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:09,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:09,876 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:09,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:09,877 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:09,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:09,896 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 11:17:09,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25463499] [2021-03-24 11:17:09,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:09,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:17:09,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683714118] [2021-03-24 11:17:09,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:17:09,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:09,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:17:09,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:17:09,898 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:09,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 429 transitions, 7425 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 11:17:09,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:09,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:09,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:10,951 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-03-24 11:17:12,226 INFO L129 PetriNetUnfolder]: 747/2769 cut-off events. [2021-03-24 11:17:12,227 INFO L130 PetriNetUnfolder]: For 70095/70139 co-relation queries the response was YES. [2021-03-24 11:17:12,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21900 conditions, 2769 events. 747/2769 cut-off events. For 70095/70139 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 27216 event pairs, 398 based on Foata normal form. 28/2755 useless extension candidates. Maximal degree in co-relation 21772. Up to 2125 conditions per place. [2021-03-24 11:17:12,258 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 319 selfloop transitions, 123 changer transitions 10/462 dead transitions. [2021-03-24 11:17:12,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 462 transitions, 8886 flow [2021-03-24 11:17:12,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:17:12,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:17:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2609 transitions. [2021-03-24 11:17:12,260 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49394168875425976 [2021-03-24 11:17:12,260 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2609 transitions. [2021-03-24 11:17:12,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2609 transitions. [2021-03-24 11:17:12,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:12,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2609 transitions. [2021-03-24 11:17:12,261 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 11:17:12,263 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 11:17:12,263 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 11:17:12,263 INFO L185 Difference]: Start difference. First operand has 368 places, 429 transitions, 7425 flow. Second operand 19 states and 2609 transitions. [2021-03-24 11:17:12,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 462 transitions, 8886 flow [2021-03-24 11:17:12,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 462 transitions, 8644 flow, removed 22 selfloop flow, removed 14 redundant places. [2021-03-24 11:17:12,546 INFO L241 Difference]: Finished difference. Result has 373 places, 435 transitions, 7650 flow [2021-03-24 11:17:12,546 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7189, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7650, PETRI_PLACES=373, PETRI_TRANSITIONS=435} [2021-03-24 11:17:12,546 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 307 predicate places. [2021-03-24 11:17:12,546 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 435 transitions, 7650 flow [2021-03-24 11:17:12,546 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 11:17:12,547 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:12,547 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 11:17:12,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-24 11:17:12,547 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 11:17:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:12,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1324341539, now seen corresponding path program 35 times [2021-03-24 11:17:12,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:12,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632366070] [2021-03-24 11:17:12,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:12,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:12,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:12,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:12,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:12,615 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-03-24 11:17:12,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:12,632 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:17:12,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:17:12,651 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 11:17:12,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:17:12,684 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.6 percent of original size [2021-03-24 11:17:12,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:17:12,720 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:17:12,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:12,746 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.6 percent of original size [2021-03-24 11:17:12,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:17:12,771 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:17:12,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:17:12,809 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:17:12,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:17:12,850 INFO L142 QuantifierPusher]: treesize reduction 39, result has 64.9 percent of original size [2021-03-24 11:17:12,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 11:17:12,897 INFO L142 QuantifierPusher]: treesize reduction 39, result has 65.8 percent of original size [2021-03-24 11:17:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 11:17:12,912 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.2 percent of original size [2021-03-24 11:17:12,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:17:12,926 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.2 percent of original size [2021-03-24 11:17:12,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:17:12,970 INFO L142 QuantifierPusher]: treesize reduction 54, result has 60.9 percent of original size [2021-03-24 11:17:12,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-24 11:17:13,027 INFO L142 QuantifierPusher]: treesize reduction 59, result has 56.9 percent of original size [2021-03-24 11:17:13,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-24 11:17:13,083 INFO L142 QuantifierPusher]: treesize reduction 54, result has 62.2 percent of original size [2021-03-24 11:17:13,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-24 11:17:13,146 INFO L142 QuantifierPusher]: treesize reduction 29, result has 62.3 percent of original size [2021-03-24 11:17:13,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 11:17:13,183 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:17:13,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:13,200 INFO L142 QuantifierPusher]: treesize reduction 39, result has 48.7 percent of original size [2021-03-24 11:17:13,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:17:13,233 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 11:17:13,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:13,269 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-24 11:17:13,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:17:13,290 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-03-24 11:17:13,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 11:17:13,311 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-03-24 11:17:13,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 11:17:13,312 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:13,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:13,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:13,353 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 11:17:13,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632366070] [2021-03-24 11:17:13,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:13,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:13,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86411465] [2021-03-24 11:17:13,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:13,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:13,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:13,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:13,356 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:13,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 435 transitions, 7650 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 11:17:13,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:13,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:13,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:14,127 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2021-03-24 11:17:14,353 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2021-03-24 11:17:14,608 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2021-03-24 11:17:15,908 INFO L129 PetriNetUnfolder]: 754/2796 cut-off events. [2021-03-24 11:17:15,908 INFO L130 PetriNetUnfolder]: For 71252/71305 co-relation queries the response was YES. [2021-03-24 11:17:15,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22229 conditions, 2796 events. 754/2796 cut-off events. For 71252/71305 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 27602 event pairs, 401 based on Foata normal form. 35/2792 useless extension candidates. Maximal degree in co-relation 22099. Up to 2168 conditions per place. [2021-03-24 11:17:15,942 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 330 selfloop transitions, 114 changer transitions 9/463 dead transitions. [2021-03-24 11:17:15,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 463 transitions, 8996 flow [2021-03-24 11:17:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:17:15,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:17:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2610 transitions. [2021-03-24 11:17:15,943 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4941310109806891 [2021-03-24 11:17:15,943 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2610 transitions. [2021-03-24 11:17:15,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2610 transitions. [2021-03-24 11:17:15,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:15,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2610 transitions. [2021-03-24 11:17:15,945 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 11:17:15,947 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 11:17:15,947 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 11:17:15,947 INFO L185 Difference]: Start difference. First operand has 373 places, 435 transitions, 7650 flow. Second operand 19 states and 2610 transitions. [2021-03-24 11:17:15,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 463 transitions, 8996 flow [2021-03-24 11:17:16,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 463 transitions, 8670 flow, removed 60 selfloop flow, removed 13 redundant places. [2021-03-24 11:17:16,250 INFO L241 Difference]: Finished difference. Result has 380 places, 442 transitions, 7752 flow [2021-03-24 11:17:16,250 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7338, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7752, PETRI_PLACES=380, PETRI_TRANSITIONS=442} [2021-03-24 11:17:16,250 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 314 predicate places. [2021-03-24 11:17:16,250 INFO L480 AbstractCegarLoop]: Abstraction has has 380 places, 442 transitions, 7752 flow [2021-03-24 11:17:16,250 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 11:17:16,250 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:16,250 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 11:17:16,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-24 11:17:16,251 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 11:17:16,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:16,251 INFO L82 PathProgramCache]: Analyzing trace with hash -952447011, now seen corresponding path program 36 times [2021-03-24 11:17:16,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:16,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068510000] [2021-03-24 11:17:16,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:16,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:16,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:16,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:16,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:16,314 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:16,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:16,332 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:17:16,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:17:16,357 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 11:17:16,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:17:16,397 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.7 percent of original size [2021-03-24 11:17:16,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:17:16,441 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.8 percent of original size [2021-03-24 11:17:16,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:17:16,478 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:17:16,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:16,506 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:17:16,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:17:16,532 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.1 percent of original size [2021-03-24 11:17:16,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:17:16,569 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 11:17:16,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:17:16,604 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 11:17:16,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:17:16,641 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 11:17:16,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:17:16,678 INFO L142 QuantifierPusher]: treesize reduction 31, result has 66.7 percent of original size [2021-03-24 11:17:16,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 11:17:16,723 INFO L142 QuantifierPusher]: treesize reduction 120, result has 29.8 percent of original size [2021-03-24 11:17:16,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:17:16,767 INFO L142 QuantifierPusher]: treesize reduction 120, result has 27.7 percent of original size [2021-03-24 11:17:16,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:17:16,785 INFO L142 QuantifierPusher]: treesize reduction 125, result has 24.2 percent of original size [2021-03-24 11:17:16,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:17:16,824 INFO L142 QuantifierPusher]: treesize reduction 121, result has 29.7 percent of original size [2021-03-24 11:17:16,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:17:16,869 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 11:17:16,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:16,907 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 11:17:16,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:17:16,927 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 11:17:16,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:17:16,961 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:17:16,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:16,996 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:17:16,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:17,034 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:17,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:17,058 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:17,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:17,058 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:17,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:17,080 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 11:17:17,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068510000] [2021-03-24 11:17:17,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:17,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:17:17,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740994796] [2021-03-24 11:17:17,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:17:17,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:17,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:17:17,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:17:17,083 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:17:17,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 442 transitions, 7752 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 11:17:17,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:17,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:17:17,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:17,876 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-03-24 11:17:18,109 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-03-24 11:17:18,387 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-24 11:17:18,911 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-03-24 11:17:19,840 INFO L129 PetriNetUnfolder]: 750/2781 cut-off events. [2021-03-24 11:17:19,840 INFO L130 PetriNetUnfolder]: For 72192/72236 co-relation queries the response was YES. [2021-03-24 11:17:19,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22237 conditions, 2781 events. 750/2781 cut-off events. For 72192/72236 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 27362 event pairs, 395 based on Foata normal form. 9/2749 useless extension candidates. Maximal degree in co-relation 22104. Up to 2251 conditions per place. [2021-03-24 11:17:19,873 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 364 selfloop transitions, 80 changer transitions 17/467 dead transitions. [2021-03-24 11:17:19,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 467 transitions, 8961 flow [2021-03-24 11:17:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:17:19,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:17:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1790 transitions. [2021-03-24 11:17:19,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32194244604316546 [2021-03-24 11:17:19,875 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1790 transitions. [2021-03-24 11:17:19,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1790 transitions. [2021-03-24 11:17:19,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:19,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1790 transitions. [2021-03-24 11:17:19,876 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 11:17:19,878 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 11:17:19,878 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 11:17:19,878 INFO L185 Difference]: Start difference. First operand has 380 places, 442 transitions, 7752 flow. Second operand 20 states and 1790 transitions. [2021-03-24 11:17:19,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 467 transitions, 8961 flow [2021-03-24 11:17:20,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 467 transitions, 8652 flow, removed 50 selfloop flow, removed 14 redundant places. [2021-03-24 11:17:20,189 INFO L241 Difference]: Finished difference. Result has 384 places, 435 transitions, 7483 flow [2021-03-24 11:17:20,189 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7445, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=7483, PETRI_PLACES=384, PETRI_TRANSITIONS=435} [2021-03-24 11:17:20,189 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 318 predicate places. [2021-03-24 11:17:20,189 INFO L480 AbstractCegarLoop]: Abstraction has has 384 places, 435 transitions, 7483 flow [2021-03-24 11:17:20,190 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 11:17:20,190 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:20,190 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 11:17:20,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-24 11:17:20,190 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 11:17:20,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:20,190 INFO L82 PathProgramCache]: Analyzing trace with hash 754515493, now seen corresponding path program 37 times [2021-03-24 11:17:20,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:20,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340528432] [2021-03-24 11:17:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:20,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:20,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:20,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:20,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:20,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:20,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:20,255 INFO L142 QuantifierPusher]: treesize reduction 29, result has 53.2 percent of original size [2021-03-24 11:17:20,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:17:20,277 INFO L142 QuantifierPusher]: treesize reduction 39, result has 54.1 percent of original size [2021-03-24 11:17:20,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:17:20,312 INFO L142 QuantifierPusher]: treesize reduction 31, result has 67.4 percent of original size [2021-03-24 11:17:20,313 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.3 percent of original size 61 [2021-03-24 11:17:20,356 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.7 percent of original size [2021-03-24 11:17:20,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:20,374 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.0 percent of original size [2021-03-24 11:17:20,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:20,391 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:17:20,391 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:17:20,424 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 11:17:20,425 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:17:20,460 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:17:20,460 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size 47 [2021-03-24 11:17:20,500 INFO L142 QuantifierPusher]: treesize reduction 19, result has 74.3 percent of original size [2021-03-24 11:17:20,500 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.9 percent of original size 50 [2021-03-24 11:17:20,513 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:17:20,514 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:20,545 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 11:17:20,546 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:17:20,577 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:17:20,577 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:20,610 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 11:17:20,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:17:20,630 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 11:17:20,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:17:20,651 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 11:17:20,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:17:20,681 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 11:17:20,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:20,703 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:17:20,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:17:20,720 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:20,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:20,720 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:17:20,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:20,741 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:20,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:20,764 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:20,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:20,785 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:20,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:20,805 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 11:17:20,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340528432] [2021-03-24 11:17:20,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:20,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:20,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345443996] [2021-03-24 11:17:20,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:20,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:20,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:20,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:20,807 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:20,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 435 transitions, 7483 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 11:17:20,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:20,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:20,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:23,076 INFO L129 PetriNetUnfolder]: 752/2780 cut-off events. [2021-03-24 11:17:23,076 INFO L130 PetriNetUnfolder]: For 70633/70677 co-relation queries the response was YES. [2021-03-24 11:17:23,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22080 conditions, 2780 events. 752/2780 cut-off events. For 70633/70677 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 27498 event pairs, 327 based on Foata normal form. 24/2768 useless extension candidates. Maximal degree in co-relation 21948. Up to 1804 conditions per place. [2021-03-24 11:17:23,109 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 255 selfloop transitions, 178 changer transitions 33/476 dead transitions. [2021-03-24 11:17:23,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 476 transitions, 9067 flow [2021-03-24 11:17:23,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:23,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2479 transitions. [2021-03-24 11:17:23,111 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4954036770583533 [2021-03-24 11:17:23,111 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2479 transitions. [2021-03-24 11:17:23,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2479 transitions. [2021-03-24 11:17:23,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:23,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2479 transitions. [2021-03-24 11:17:23,113 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 11:17:23,114 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 11:17:23,115 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 11:17:23,115 INFO L185 Difference]: Start difference. First operand has 384 places, 435 transitions, 7483 flow. Second operand 18 states and 2479 transitions. [2021-03-24 11:17:23,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 476 transitions, 9067 flow [2021-03-24 11:17:23,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 476 transitions, 8862 flow, removed 12 selfloop flow, removed 21 redundant places. [2021-03-24 11:17:23,422 INFO L241 Difference]: Finished difference. Result has 381 places, 420 transitions, 7490 flow [2021-03-24 11:17:23,422 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7290, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7490, PETRI_PLACES=381, PETRI_TRANSITIONS=420} [2021-03-24 11:17:23,423 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 315 predicate places. [2021-03-24 11:17:23,423 INFO L480 AbstractCegarLoop]: Abstraction has has 381 places, 420 transitions, 7490 flow [2021-03-24 11:17:23,423 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 11:17:23,423 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:23,423 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 11:17:23,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-24 11:17:23,423 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 11:17:23,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:23,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1094216155, now seen corresponding path program 38 times [2021-03-24 11:17:23,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:23,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773828028] [2021-03-24 11:17:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:23,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:23,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:23,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:23,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:23,478 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:23,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:23,495 INFO L142 QuantifierPusher]: treesize reduction 29, result has 51.7 percent of original size [2021-03-24 11:17:23,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:17:23,518 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-03-24 11:17:23,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:17:23,555 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.7 percent of original size [2021-03-24 11:17:23,555 INFO L147 QuantifierPusher]: treesize reduction 5, result has 92.6 percent of original size 63 [2021-03-24 11:17:23,595 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.8 percent of original size [2021-03-24 11:17:23,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:17:23,623 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size [2021-03-24 11:17:23,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:17:23,649 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:17:23,650 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:17:23,683 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:17:23,684 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:17:23,718 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-03-24 11:17:23,719 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 11:17:23,755 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.5 percent of original size [2021-03-24 11:17:23,755 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:17:23,768 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.4 percent of original size [2021-03-24 11:17:23,769 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:23,781 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.4 percent of original size [2021-03-24 11:17:23,781 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:23,813 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.9 percent of original size [2021-03-24 11:17:23,813 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:17:23,846 INFO L142 QuantifierPusher]: treesize reduction 48, result has 40.7 percent of original size [2021-03-24 11:17:23,846 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:17:23,878 INFO L142 QuantifierPusher]: treesize reduction 46, result has 48.9 percent of original size [2021-03-24 11:17:23,878 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:17:23,913 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:17:23,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:17:23,934 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:17:23,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:17:23,948 INFO L142 QuantifierPusher]: treesize reduction 16, result has 52.9 percent of original size [2021-03-24 11:17:23,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:17:23,968 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:17:23,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:23,988 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:23,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:24,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:17:24,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:24,030 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:17:24,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:24,030 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:24,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:24,049 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 11:17:24,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773828028] [2021-03-24 11:17:24,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:24,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:17:24,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748469085] [2021-03-24 11:17:24,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:17:24,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:24,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:17:24,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:17:24,051 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:24,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 420 transitions, 7490 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 11:17:24,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:24,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:24,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:24,897 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-03-24 11:17:25,124 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-24 11:17:26,440 INFO L129 PetriNetUnfolder]: 731/2714 cut-off events. [2021-03-24 11:17:26,440 INFO L130 PetriNetUnfolder]: For 72768/72816 co-relation queries the response was YES. [2021-03-24 11:17:26,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21868 conditions, 2714 events. 731/2714 cut-off events. For 72768/72816 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 26651 event pairs, 395 based on Foata normal form. 30/2703 useless extension candidates. Maximal degree in co-relation 21735. Up to 2109 conditions per place. [2021-03-24 11:17:26,475 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 307 selfloop transitions, 104 changer transitions 18/439 dead transitions. [2021-03-24 11:17:26,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 439 transitions, 8562 flow [2021-03-24 11:17:26,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:17:26,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:17:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2744 transitions. [2021-03-24 11:17:26,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4935251798561151 [2021-03-24 11:17:26,477 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2744 transitions. [2021-03-24 11:17:26,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2744 transitions. [2021-03-24 11:17:26,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:26,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2744 transitions. [2021-03-24 11:17:26,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 137.2) internal successors, (2744), 20 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:17:26,481 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 11:17:26,481 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 11:17:26,481 INFO L185 Difference]: Start difference. First operand has 381 places, 420 transitions, 7490 flow. Second operand 20 states and 2744 transitions. [2021-03-24 11:17:26,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 439 transitions, 8562 flow [2021-03-24 11:17:26,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 439 transitions, 7974 flow, removed 13 selfloop flow, removed 27 redundant places. [2021-03-24 11:17:26,741 INFO L241 Difference]: Finished difference. Result has 363 places, 410 transitions, 6929 flow [2021-03-24 11:17:26,742 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6908, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6929, PETRI_PLACES=363, PETRI_TRANSITIONS=410} [2021-03-24 11:17:26,742 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 297 predicate places. [2021-03-24 11:17:26,742 INFO L480 AbstractCegarLoop]: Abstraction has has 363 places, 410 transitions, 6929 flow [2021-03-24 11:17:26,742 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 11:17:26,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:26,742 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 11:17:26,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-24 11:17:26,742 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 11:17:26,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:26,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1977177343, now seen corresponding path program 39 times [2021-03-24 11:17:26,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:26,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592672492] [2021-03-24 11:17:26,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:26,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:26,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:26,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:26,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:26,801 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:26,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:26,819 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:17:26,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:17:26,844 INFO L142 QuantifierPusher]: treesize reduction 34, result has 61.8 percent of original size [2021-03-24 11:17:26,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:17:26,883 INFO L142 QuantifierPusher]: treesize reduction 29, result has 70.7 percent of original size [2021-03-24 11:17:26,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:17:26,927 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.8 percent of original size [2021-03-24 11:17:26,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:17:26,955 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size [2021-03-24 11:17:26,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:17:26,982 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.9 percent of original size [2021-03-24 11:17:26,982 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:17:27,016 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.9 percent of original size [2021-03-24 11:17:27,016 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 11:17:27,052 INFO L142 QuantifierPusher]: treesize reduction 16, result has 75.0 percent of original size [2021-03-24 11:17:27,052 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 11:17:27,089 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:17:27,089 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:17:27,102 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:17:27,103 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:27,115 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:17:27,115 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:27,147 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:17:27,147 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:17:27,179 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:17:27,179 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:17:27,213 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:17:27,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:17:27,232 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:17:27,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:17:27,252 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:17:27,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:17:27,266 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:17:27,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:17:27,285 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:17:27,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:17:27,306 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-03-24 11:17:27,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:17:27,326 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:27,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:27,346 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:27,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:27,346 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:27,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:27,366 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 11:17:27,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592672492] [2021-03-24 11:17:27,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:27,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 11:17:27,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942791669] [2021-03-24 11:17:27,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 11:17:27,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:27,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 11:17:27,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-03-24 11:17:27,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:27,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 410 transitions, 6929 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 11:17:27,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:27,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:27,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:29,211 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-03-24 11:17:29,650 INFO L129 PetriNetUnfolder]: 730/2704 cut-off events. [2021-03-24 11:17:29,650 INFO L130 PetriNetUnfolder]: For 62038/62076 co-relation queries the response was YES. [2021-03-24 11:17:29,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20765 conditions, 2704 events. 730/2704 cut-off events. For 62038/62076 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 26505 event pairs, 392 based on Foata normal form. 19/2682 useless extension candidates. Maximal degree in co-relation 20641. Up to 2090 conditions per place. [2021-03-24 11:17:29,680 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 307 selfloop transitions, 112 changer transitions 9/438 dead transitions. [2021-03-24 11:17:29,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 438 transitions, 8195 flow [2021-03-24 11:17:29,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:17:29,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:17:29,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2616 transitions. [2021-03-24 11:17:29,682 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49526694433926544 [2021-03-24 11:17:29,682 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2616 transitions. [2021-03-24 11:17:29,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2616 transitions. [2021-03-24 11:17:29,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:29,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2616 transitions. [2021-03-24 11:17:29,684 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 11:17:29,686 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 11:17:29,686 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 11:17:29,686 INFO L185 Difference]: Start difference. First operand has 363 places, 410 transitions, 6929 flow. Second operand 19 states and 2616 transitions. [2021-03-24 11:17:29,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 438 transitions, 8195 flow [2021-03-24 11:17:29,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 438 transitions, 7899 flow, removed 13 selfloop flow, removed 22 redundant places. [2021-03-24 11:17:29,942 INFO L241 Difference]: Finished difference. Result has 359 places, 413 transitions, 6971 flow [2021-03-24 11:17:29,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6637, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6971, PETRI_PLACES=359, PETRI_TRANSITIONS=413} [2021-03-24 11:17:29,942 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 293 predicate places. [2021-03-24 11:17:29,942 INFO L480 AbstractCegarLoop]: Abstraction has has 359 places, 413 transitions, 6971 flow [2021-03-24 11:17:29,943 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 11:17:29,943 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:29,943 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 11:17:29,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-24 11:17:29,943 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 11:17:29,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:29,943 INFO L82 PathProgramCache]: Analyzing trace with hash -823066835, now seen corresponding path program 40 times [2021-03-24 11:17:29,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:29,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670478746] [2021-03-24 11:17:29,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:29,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:29,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:29,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:29,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:30,007 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:30,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:30,024 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:17:30,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:30,044 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:17:30,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:30,080 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:17:30,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:17:30,120 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:17:30,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:30,145 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:17:30,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:17:30,170 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:17:30,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:17:30,204 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:17:30,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:17:30,238 INFO L142 QuantifierPusher]: treesize reduction 50, result has 57.3 percent of original size [2021-03-24 11:17:30,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:17:30,281 INFO L142 QuantifierPusher]: treesize reduction 42, result has 60.4 percent of original size [2021-03-24 11:17:30,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:17:30,323 INFO L142 QuantifierPusher]: treesize reduction 42, result has 60.4 percent of original size [2021-03-24 11:17:30,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:17:30,366 INFO L142 QuantifierPusher]: treesize reduction 42, result has 58.4 percent of original size [2021-03-24 11:17:30,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:17:30,380 INFO L142 QuantifierPusher]: treesize reduction 47, result has 53.0 percent of original size [2021-03-24 11:17:30,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:17:30,420 INFO L142 QuantifierPusher]: treesize reduction 47, result has 52.5 percent of original size [2021-03-24 11:17:30,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:17:30,462 INFO L142 QuantifierPusher]: treesize reduction 59, result has 53.9 percent of original size [2021-03-24 11:17:30,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:17:30,515 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.7 percent of original size [2021-03-24 11:17:30,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 11:17:30,575 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:17:30,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:30,612 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:17:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:30,632 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:17:30,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:30,652 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:17:30,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:30,687 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:17:30,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:30,722 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:30,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:30,744 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:30,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:30,765 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 11:17:30,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670478746] [2021-03-24 11:17:30,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:30,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:30,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595810154] [2021-03-24 11:17:30,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:30,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:30,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:30,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:30,767 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:30,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 413 transitions, 6971 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 11:17:30,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:30,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:30,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:31,521 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-03-24 11:17:31,743 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-03-24 11:17:31,986 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 11:17:32,204 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2021-03-24 11:17:32,755 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-03-24 11:17:33,249 INFO L129 PetriNetUnfolder]: 730/2710 cut-off events. [2021-03-24 11:17:33,249 INFO L130 PetriNetUnfolder]: For 62304/62346 co-relation queries the response was YES. [2021-03-24 11:17:33,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20811 conditions, 2710 events. 730/2710 cut-off events. For 62304/62346 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 26620 event pairs, 397 based on Foata normal form. 21/2691 useless extension candidates. Maximal degree in co-relation 20685. Up to 2109 conditions per place. [2021-03-24 11:17:33,280 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 319 selfloop transitions, 84 changer transitions 23/436 dead transitions. [2021-03-24 11:17:33,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 436 transitions, 8125 flow [2021-03-24 11:17:33,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 11:17:33,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 11:17:33,282 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 11:17:33,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 11:17:33,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:33,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 11:17:33,283 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 11:17:33,285 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 11:17:33,285 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 11:17:33,285 INFO L185 Difference]: Start difference. First operand has 359 places, 413 transitions, 6971 flow. Second operand 18 states and 2470 transitions. [2021-03-24 11:17:33,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 436 transitions, 8125 flow [2021-03-24 11:17:33,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 436 transitions, 7815 flow, removed 45 selfloop flow, removed 13 redundant places. [2021-03-24 11:17:33,537 INFO L241 Difference]: Finished difference. Result has 364 places, 408 transitions, 6743 flow [2021-03-24 11:17:33,537 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6669, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6743, PETRI_PLACES=364, PETRI_TRANSITIONS=408} [2021-03-24 11:17:33,537 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 298 predicate places. [2021-03-24 11:17:33,537 INFO L480 AbstractCegarLoop]: Abstraction has has 364 places, 408 transitions, 6743 flow [2021-03-24 11:17:33,538 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 11:17:33,538 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:33,538 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 11:17:33,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-24 11:17:33,538 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 11:17:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:33,538 INFO L82 PathProgramCache]: Analyzing trace with hash 578369853, now seen corresponding path program 41 times [2021-03-24 11:17:33,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:33,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182833742] [2021-03-24 11:17:33,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:33,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:33,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:33,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:33,598 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:33,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:33,616 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:17:33,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:33,636 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:17:33,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:33,672 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:17:33,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:17:33,711 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:17:33,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:33,729 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:17:33,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:33,745 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:33,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:33,775 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:33,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:33,806 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-24 11:17:33,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:17:33,840 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:33,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:33,873 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:17:33,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:17:33,885 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:17:33,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:17:33,915 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:17:33,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:17:33,945 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:17:33,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:17:33,984 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:33,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:34,011 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-24 11:17:34,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:34,035 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:17:34,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:34,060 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:17:34,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:34,079 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:17:34,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:34,080 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:17:34,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:17:34,114 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:34,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:34,139 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:34,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:34,161 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:34,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:34,182 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 11:17:34,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182833742] [2021-03-24 11:17:34,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:34,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:34,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577912153] [2021-03-24 11:17:34,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:34,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:34,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:34,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:34,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:34,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 408 transitions, 6743 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 11:17:34,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:34,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:34,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:35,906 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2021-03-24 11:17:36,584 INFO L129 PetriNetUnfolder]: 732/2711 cut-off events. [2021-03-24 11:17:36,584 INFO L130 PetriNetUnfolder]: For 64494/64530 co-relation queries the response was YES. [2021-03-24 11:17:36,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20944 conditions, 2711 events. 732/2711 cut-off events. For 64494/64530 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 26579 event pairs, 396 based on Foata normal form. 22/2694 useless extension candidates. Maximal degree in co-relation 20816. Up to 2039 conditions per place. [2021-03-24 11:17:36,614 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 294 selfloop transitions, 120 changer transitions 28/452 dead transitions. [2021-03-24 11:17:36,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 452 transitions, 8249 flow [2021-03-24 11:17:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:36,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2480 transitions. [2021-03-24 11:17:36,616 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.495603517186251 [2021-03-24 11:17:36,616 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2480 transitions. [2021-03-24 11:17:36,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2480 transitions. [2021-03-24 11:17:36,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:36,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2480 transitions. [2021-03-24 11:17:36,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.77777777777777) internal successors, (2480), 18 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:17:36,619 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 11:17:36,619 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 11:17:36,619 INFO L185 Difference]: Start difference. First operand has 364 places, 408 transitions, 6743 flow. Second operand 18 states and 2480 transitions. [2021-03-24 11:17:36,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 452 transitions, 8249 flow [2021-03-24 11:17:36,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 452 transitions, 8058 flow, removed 7 selfloop flow, removed 16 redundant places. [2021-03-24 11:17:36,879 INFO L241 Difference]: Finished difference. Result has 362 places, 408 transitions, 6860 flow [2021-03-24 11:17:36,879 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6558, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6860, PETRI_PLACES=362, PETRI_TRANSITIONS=408} [2021-03-24 11:17:36,879 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 296 predicate places. [2021-03-24 11:17:36,879 INFO L480 AbstractCegarLoop]: Abstraction has has 362 places, 408 transitions, 6860 flow [2021-03-24 11:17:36,880 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 11:17:36,880 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:36,880 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 11:17:36,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-24 11:17:36,880 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 11:17:36,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:36,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1411485013, now seen corresponding path program 42 times [2021-03-24 11:17:36,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:36,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207891712] [2021-03-24 11:17:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:36,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:36,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:36,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:36,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:36,934 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:36,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:36,951 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:17:36,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:17:36,978 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:17:36,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:17:37,018 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:17:37,018 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:17:37,062 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:17:37,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:37,078 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:17:37,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:37,094 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:17:37,095 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:17:37,124 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:17:37,124 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:17:37,155 INFO L142 QuantifierPusher]: treesize reduction 24, result has 66.2 percent of original size [2021-03-24 11:17:37,156 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.4 percent of original size 42 [2021-03-24 11:17:37,190 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:17:37,190 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:17:37,223 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:17:37,223 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:17:37,256 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:17:37,256 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:17:37,268 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:17:37,269 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:17:37,299 INFO L142 QuantifierPusher]: treesize reduction 41, result has 46.8 percent of original size [2021-03-24 11:17:37,300 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size 29 [2021-03-24 11:17:37,334 INFO L142 QuantifierPusher]: treesize reduction 39, result has 54.7 percent of original size [2021-03-24 11:17:37,334 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.1 percent of original size 40 [2021-03-24 11:17:37,373 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:17:37,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:17:37,396 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:17:37,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:17:37,411 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:17:37,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:17:37,432 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:17:37,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:37,454 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:17:37,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:37,477 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:37,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:37,498 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:37,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:37,499 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:37,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:37,520 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 11:17:37,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207891712] [2021-03-24 11:17:37,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:37,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:37,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930861395] [2021-03-24 11:17:37,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:37,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:37,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:37,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:37,522 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:37,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 408 transitions, 6860 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 11:17:37,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:37,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:37,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:38,460 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-03-24 11:17:38,640 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-03-24 11:17:39,966 INFO L129 PetriNetUnfolder]: 712/2655 cut-off events. [2021-03-24 11:17:39,966 INFO L130 PetriNetUnfolder]: For 63764/63803 co-relation queries the response was YES. [2021-03-24 11:17:39,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20612 conditions, 2655 events. 712/2655 cut-off events. For 63764/63803 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 25971 event pairs, 389 based on Foata normal form. 20/2635 useless extension candidates. Maximal degree in co-relation 20483. Up to 2061 conditions per place. [2021-03-24 11:17:39,994 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 305 selfloop transitions, 97 changer transitions 15/427 dead transitions. [2021-03-24 11:17:39,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 427 transitions, 7906 flow [2021-03-24 11:17:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:17:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:17:39,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2743 transitions. [2021-03-24 11:17:39,996 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4933453237410072 [2021-03-24 11:17:39,996 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2743 transitions. [2021-03-24 11:17:39,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2743 transitions. [2021-03-24 11:17:39,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:39,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2743 transitions. [2021-03-24 11:17:39,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 137.15) internal successors, (2743), 20 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:17:40,000 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 11:17:40,000 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 11:17:40,000 INFO L185 Difference]: Start difference. First operand has 362 places, 408 transitions, 6860 flow. Second operand 20 states and 2743 transitions. [2021-03-24 11:17:40,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 427 transitions, 7906 flow [2021-03-24 11:17:40,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 427 transitions, 7662 flow, removed 10 selfloop flow, removed 16 redundant places. [2021-03-24 11:17:40,244 INFO L241 Difference]: Finished difference. Result has 362 places, 401 transitions, 6688 flow [2021-03-24 11:17:40,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6618, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6688, PETRI_PLACES=362, PETRI_TRANSITIONS=401} [2021-03-24 11:17:40,244 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 296 predicate places. [2021-03-24 11:17:40,244 INFO L480 AbstractCegarLoop]: Abstraction has has 362 places, 401 transitions, 6688 flow [2021-03-24 11:17:40,245 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 11:17:40,245 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:40,245 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 11:17:40,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-24 11:17:40,245 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 11:17:40,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:40,245 INFO L82 PathProgramCache]: Analyzing trace with hash -171339669, now seen corresponding path program 43 times [2021-03-24 11:17:40,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:40,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656735571] [2021-03-24 11:17:40,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:40,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:40,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:40,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:40,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:40,304 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:40,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:40,322 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:17:40,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:17:40,348 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 11:17:40,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:17:40,388 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:17:40,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:17:40,430 INFO L142 QuantifierPusher]: treesize reduction 25, result has 71.6 percent of original size [2021-03-24 11:17:40,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 11:17:40,480 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:17:40,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:17:40,481 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:17:40,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:40,498 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:17:40,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:40,515 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:17:40,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:17:40,535 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:17:40,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:17:40,556 INFO L142 QuantifierPusher]: treesize reduction 27, result has 60.9 percent of original size [2021-03-24 11:17:40,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:40,580 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:17:40,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:17:40,603 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:17:40,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:17:40,626 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:17:40,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:40,639 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:17:40,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:17:40,661 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:17:40,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:40,684 INFO L142 QuantifierPusher]: treesize reduction 42, result has 49.4 percent of original size [2021-03-24 11:17:40,685 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.4 percent of original size 35 [2021-03-24 11:17:40,721 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:17:40,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:17:40,744 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:17:40,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:17:40,761 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:17:40,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:17:40,783 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 11:17:40,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:40,805 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:40,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:40,830 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:40,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:40,853 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:40,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:40,853 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:40,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:40,875 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 11:17:40,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656735571] [2021-03-24 11:17:40,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:40,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:17:40,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738082651] [2021-03-24 11:17:40,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:17:40,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:40,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:17:40,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:17:40,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:17:40,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 401 transitions, 6688 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 11:17:40,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:40,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:17:40,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:41,820 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-03-24 11:17:43,253 INFO L129 PetriNetUnfolder]: 706/2631 cut-off events. [2021-03-24 11:17:43,254 INFO L130 PetriNetUnfolder]: For 60174/60214 co-relation queries the response was YES. [2021-03-24 11:17:43,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20234 conditions, 2631 events. 706/2631 cut-off events. For 60174/60214 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 25661 event pairs, 391 based on Foata normal form. 21/2616 useless extension candidates. Maximal degree in co-relation 20108. Up to 2042 conditions per place. [2021-03-24 11:17:43,280 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 295 selfloop transitions, 97 changer transitions 23/421 dead transitions. [2021-03-24 11:17:43,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 421 transitions, 7732 flow [2021-03-24 11:17:43,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:43,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1616 transitions. [2021-03-24 11:17:43,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3229416466826539 [2021-03-24 11:17:43,282 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1616 transitions. [2021-03-24 11:17:43,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1616 transitions. [2021-03-24 11:17:43,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:43,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1616 transitions. [2021-03-24 11:17:43,283 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 11:17:43,285 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 11:17:43,285 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 11:17:43,285 INFO L185 Difference]: Start difference. First operand has 362 places, 401 transitions, 6688 flow. Second operand 18 states and 1616 transitions. [2021-03-24 11:17:43,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 421 transitions, 7732 flow [2021-03-24 11:17:43,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 421 transitions, 7501 flow, removed 11 selfloop flow, removed 20 redundant places. [2021-03-24 11:17:43,512 INFO L241 Difference]: Finished difference. Result has 356 places, 390 transitions, 6502 flow [2021-03-24 11:17:43,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6459, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6502, PETRI_PLACES=356, PETRI_TRANSITIONS=390} [2021-03-24 11:17:43,512 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 290 predicate places. [2021-03-24 11:17:43,512 INFO L480 AbstractCegarLoop]: Abstraction has has 356 places, 390 transitions, 6502 flow [2021-03-24 11:17:43,513 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 11:17:43,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:43,513 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 11:17:43,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-24 11:17:43,513 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 11:17:43,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:43,513 INFO L82 PathProgramCache]: Analyzing trace with hash -10928719, now seen corresponding path program 44 times [2021-03-24 11:17:43,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:43,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193345126] [2021-03-24 11:17:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:43,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:43,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:43,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:43,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:43,573 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:43,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:43,591 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:17:43,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:43,612 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:17:43,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:43,649 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:17:43,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:17:43,688 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:17:43,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:43,704 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:17:43,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:43,720 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:43,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:43,750 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:43,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:43,781 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-24 11:17:43,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:17:43,816 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:43,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:43,849 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:17:43,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:17:43,861 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:17:43,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:17:43,891 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:17:43,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:17:43,922 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:17:43,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:43,945 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:43,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:43,972 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-24 11:17:43,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:43,996 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:17:43,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:44,021 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:17:44,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:44,040 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:17:44,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:44,040 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:17:44,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:17:44,076 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:44,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:44,100 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:44,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:44,122 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:44,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:44,143 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 11:17:44,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193345126] [2021-03-24 11:17:44,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:44,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:44,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631222794] [2021-03-24 11:17:44,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:44,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:44,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:44,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:44,145 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:44,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 390 transitions, 6502 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 11:17:44,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:44,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:44,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:45,276 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-03-24 11:17:45,862 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-24 11:17:46,546 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-03-24 11:17:46,592 INFO L129 PetriNetUnfolder]: 713/2644 cut-off events. [2021-03-24 11:17:46,592 INFO L130 PetriNetUnfolder]: For 58031/58070 co-relation queries the response was YES. [2021-03-24 11:17:46,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20129 conditions, 2644 events. 713/2644 cut-off events. For 58031/58070 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 25756 event pairs, 399 based on Foata normal form. 25/2632 useless extension candidates. Maximal degree in co-relation 20004. Up to 2006 conditions per place. [2021-03-24 11:17:46,616 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 291 selfloop transitions, 91 changer transitions 34/426 dead transitions. [2021-03-24 11:17:46,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 426 transitions, 7828 flow [2021-03-24 11:17:46,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:46,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:46,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2477 transitions. [2021-03-24 11:17:46,618 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49500399680255797 [2021-03-24 11:17:46,618 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2477 transitions. [2021-03-24 11:17:46,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2477 transitions. [2021-03-24 11:17:46,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:46,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2477 transitions. [2021-03-24 11:17:46,620 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 11:17:46,621 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 11:17:46,622 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 11:17:46,622 INFO L185 Difference]: Start difference. First operand has 356 places, 390 transitions, 6502 flow. Second operand 18 states and 2477 transitions. [2021-03-24 11:17:46,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 426 transitions, 7828 flow [2021-03-24 11:17:46,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 426 transitions, 7543 flow, removed 22 selfloop flow, removed 22 redundant places. [2021-03-24 11:17:46,827 INFO L241 Difference]: Finished difference. Result has 345 places, 376 transitions, 6172 flow [2021-03-24 11:17:46,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6236, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6172, PETRI_PLACES=345, PETRI_TRANSITIONS=376} [2021-03-24 11:17:46,827 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 279 predicate places. [2021-03-24 11:17:46,827 INFO L480 AbstractCegarLoop]: Abstraction has has 345 places, 376 transitions, 6172 flow [2021-03-24 11:17:46,828 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 11:17:46,828 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:46,828 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 11:17:46,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-24 11:17:46,828 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 11:17:46,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:46,828 INFO L82 PathProgramCache]: Analyzing trace with hash -2144647157, now seen corresponding path program 45 times [2021-03-24 11:17:46,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:46,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278543175] [2021-03-24 11:17:46,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:46,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:46,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:46,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:46,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:46,889 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:46,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:46,908 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:17:46,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:46,929 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:17:46,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:46,967 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:17:46,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:17:47,007 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:17:47,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:47,023 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:17:47,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:47,039 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:47,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:47,069 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:47,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:47,101 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-24 11:17:47,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:17:47,136 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:47,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:47,169 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:47,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:47,203 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:17:47,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:17:47,216 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 11:17:47,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:17:47,238 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 11:17:47,238 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:17:47,278 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:17:47,278 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:17:47,317 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:17:47,318 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:17:47,359 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:17:47,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:47,383 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:17:47,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:47,402 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:17:47,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:47,403 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:17:47,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:17:47,438 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:47,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:47,462 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:47,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:47,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:47,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:47,506 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 11:17:47,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278543175] [2021-03-24 11:17:47,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:47,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:47,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94845805] [2021-03-24 11:17:47,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:47,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:47,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:47,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:47,508 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:47,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 376 transitions, 6172 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 11:17:47,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:47,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:47,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:48,246 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-03-24 11:17:48,495 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-03-24 11:17:48,694 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-03-24 11:17:48,911 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-03-24 11:17:49,967 INFO L129 PetriNetUnfolder]: 700/2616 cut-off events. [2021-03-24 11:17:49,967 INFO L130 PetriNetUnfolder]: For 53245/53284 co-relation queries the response was YES. [2021-03-24 11:17:49,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19550 conditions, 2616 events. 700/2616 cut-off events. For 53245/53284 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 25558 event pairs, 399 based on Foata normal form. 23/2601 useless extension candidates. Maximal degree in co-relation 19428. Up to 2005 conditions per place. [2021-03-24 11:17:49,990 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 271 selfloop transitions, 82 changer transitions 31/394 dead transitions. [2021-03-24 11:17:49,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 394 transitions, 7158 flow [2021-03-24 11:17:49,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:49,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:49,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2471 transitions. [2021-03-24 11:17:49,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4938049560351719 [2021-03-24 11:17:49,992 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2471 transitions. [2021-03-24 11:17:49,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2471 transitions. [2021-03-24 11:17:49,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:49,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2471 transitions. [2021-03-24 11:17:49,994 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 11:17:49,996 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 11:17:49,996 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 11:17:49,996 INFO L185 Difference]: Start difference. First operand has 345 places, 376 transitions, 6172 flow. Second operand 18 states and 2471 transitions. [2021-03-24 11:17:49,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 394 transitions, 7158 flow [2021-03-24 11:17:50,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 394 transitions, 6906 flow, removed 24 selfloop flow, removed 17 redundant places. [2021-03-24 11:17:50,195 INFO L241 Difference]: Finished difference. Result has 344 places, 358 transitions, 5801 flow [2021-03-24 11:17:50,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5926, PETRI_DIFFERENCE_MINUEND_PLACES=324, 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=18, PETRI_FLOW=5801, PETRI_PLACES=344, PETRI_TRANSITIONS=358} [2021-03-24 11:17:50,196 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 278 predicate places. [2021-03-24 11:17:50,196 INFO L480 AbstractCegarLoop]: Abstraction has has 344 places, 358 transitions, 5801 flow [2021-03-24 11:17:50,196 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 11:17:50,196 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:50,196 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 11:17:50,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-24 11:17:50,196 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 11:17:50,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:50,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1129769, now seen corresponding path program 46 times [2021-03-24 11:17:50,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:50,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355750946] [2021-03-24 11:17:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:50,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:50,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:50,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:50,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:50,255 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:50,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:50,273 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:17:50,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:50,294 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:17:50,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:50,331 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:17:50,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:17:50,370 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:17:50,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:50,386 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:17:50,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:50,402 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:50,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:50,431 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:50,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:50,463 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-24 11:17:50,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:17:50,497 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:50,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:50,530 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:50,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:50,563 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:17:50,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:17:50,576 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 11:17:50,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:17:50,598 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:17:50,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:50,621 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:17:50,622 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:17:50,661 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:17:50,662 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:17:50,703 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:17:50,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:50,728 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:17:50,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:50,747 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:17:50,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:50,748 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:17:50,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:17:50,783 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:50,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:50,807 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:50,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:50,829 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:50,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:50,850 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 11:17:50,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355750946] [2021-03-24 11:17:50,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:50,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:50,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859113994] [2021-03-24 11:17:50,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:50,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:50,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:50,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:50,852 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:50,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 358 transitions, 5801 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 11:17:50,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:50,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:50,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:52,101 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-03-24 11:17:53,064 INFO L129 PetriNetUnfolder]: 672/2535 cut-off events. [2021-03-24 11:17:53,065 INFO L130 PetriNetUnfolder]: For 47252/47295 co-relation queries the response was YES. [2021-03-24 11:17:53,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18498 conditions, 2535 events. 672/2535 cut-off events. For 47252/47295 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 24660 event pairs, 388 based on Foata normal form. 23/2521 useless extension candidates. Maximal degree in co-relation 18379. Up to 1934 conditions per place. [2021-03-24 11:17:53,094 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 255 selfloop transitions, 74 changer transitions 35/374 dead transitions. [2021-03-24 11:17:53,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 374 transitions, 6712 flow [2021-03-24 11:17:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:53,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:53,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 11:17:53,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 11:17:53,095 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 11:17:53,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 11:17:53,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:53,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 11:17:53,097 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 11:17:53,099 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 11:17:53,099 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 11:17:53,099 INFO L185 Difference]: Start difference. First operand has 344 places, 358 transitions, 5801 flow. Second operand 18 states and 2470 transitions. [2021-03-24 11:17:53,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 374 transitions, 6712 flow [2021-03-24 11:17:53,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 374 transitions, 6468 flow, removed 20 selfloop flow, removed 23 redundant places. [2021-03-24 11:17:53,326 INFO L241 Difference]: Finished difference. Result has 330 places, 334 transitions, 5343 flow [2021-03-24 11:17:53,326 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5565, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5343, PETRI_PLACES=330, PETRI_TRANSITIONS=334} [2021-03-24 11:17:53,327 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 264 predicate places. [2021-03-24 11:17:53,327 INFO L480 AbstractCegarLoop]: Abstraction has has 330 places, 334 transitions, 5343 flow [2021-03-24 11:17:53,327 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 11:17:53,327 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:53,327 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 11:17:53,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-24 11:17:53,327 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 11:17:53,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:53,328 INFO L82 PathProgramCache]: Analyzing trace with hash 634022565, now seen corresponding path program 47 times [2021-03-24 11:17:53,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:53,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432046584] [2021-03-24 11:17:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:53,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:53,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:53,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:53,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:53,389 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:53,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:53,406 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:17:53,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:53,427 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:17:53,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:53,464 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:17:53,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:17:53,503 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:17:53,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:53,519 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:17:53,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:53,536 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:53,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:53,566 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:17:53,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:17:53,597 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-24 11:17:53,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:17:53,632 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:17:53,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:53,666 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:17:53,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:17:53,678 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:17:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:17:53,708 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:17:53,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:17:53,739 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:17:53,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:53,762 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:17:53,763 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:17:53,802 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:17:53,802 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:17:53,843 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:17:53,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:53,868 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:17:53,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:17:53,886 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:17:53,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:17:53,887 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:17:53,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:17:53,923 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:17:53,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:53,947 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:17:53,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:53,969 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:53,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:53,991 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 11:17:53,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432046584] [2021-03-24 11:17:53,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:53,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:53,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030985098] [2021-03-24 11:17:53,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:53,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:53,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:53,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:53,993 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:53,994 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 334 transitions, 5343 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 11:17:53,994 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:53,994 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:53,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:54,899 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2021-03-24 11:17:55,121 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2021-03-24 11:17:55,287 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2021-03-24 11:17:56,220 INFO L129 PetriNetUnfolder]: 644/2449 cut-off events. [2021-03-24 11:17:56,221 INFO L130 PetriNetUnfolder]: For 41811/41858 co-relation queries the response was YES. [2021-03-24 11:17:56,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17428 conditions, 2449 events. 644/2449 cut-off events. For 41811/41858 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 23755 event pairs, 380 based on Foata normal form. 26/2441 useless extension candidates. Maximal degree in co-relation 17318. Up to 1872 conditions per place. [2021-03-24 11:17:56,247 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 236 selfloop transitions, 79 changer transitions 33/358 dead transitions. [2021-03-24 11:17:56,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 358 transitions, 6327 flow [2021-03-24 11:17:56,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 11:17:56,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 11:17:56,249 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 11:17:56,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 11:17:56,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:56,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 11:17:56,250 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 11:17:56,252 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 11:17:56,253 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 11:17:56,253 INFO L185 Difference]: Start difference. First operand has 330 places, 334 transitions, 5343 flow. Second operand 18 states and 2468 transitions. [2021-03-24 11:17:56,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 358 transitions, 6327 flow [2021-03-24 11:17:56,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 358 transitions, 6002 flow, removed 25 selfloop flow, removed 26 redundant places. [2021-03-24 11:17:56,400 INFO L241 Difference]: Finished difference. Result has 310 places, 316 transitions, 4798 flow [2021-03-24 11:17:56,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5027, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4798, PETRI_PLACES=310, PETRI_TRANSITIONS=316} [2021-03-24 11:17:56,400 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 244 predicate places. [2021-03-24 11:17:56,400 INFO L480 AbstractCegarLoop]: Abstraction has has 310 places, 316 transitions, 4798 flow [2021-03-24 11:17:56,401 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 11:17:56,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:56,401 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 11:17:56,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-24 11:17:56,401 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 11:17:56,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:56,401 INFO L82 PathProgramCache]: Analyzing trace with hash 859696141, now seen corresponding path program 48 times [2021-03-24 11:17:56,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:56,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770489658] [2021-03-24 11:17:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:56,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:56,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:56,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:56,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:56,456 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:56,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:56,474 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:17:56,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:17:56,498 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:17:56,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:17:56,535 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:17:56,536 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:17:56,581 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:17:56,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:17:56,643 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:17:56,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:17:56,662 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:17:56,662 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:17:56,693 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:17:56,694 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:17:56,722 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:17:56,722 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:17:56,751 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:17:56,751 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:17:56,786 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:17:56,786 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:17:56,799 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:17:56,799 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:17:56,830 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:17:56,831 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:17:56,863 INFO L142 QuantifierPusher]: treesize reduction 41, result has 46.8 percent of original size [2021-03-24 11:17:56,863 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size 29 [2021-03-24 11:17:56,900 INFO L142 QuantifierPusher]: treesize reduction 39, result has 54.7 percent of original size [2021-03-24 11:17:56,900 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.1 percent of original size 40 [2021-03-24 11:17:56,942 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:17:56,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:17:56,966 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:17:56,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:17:56,983 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:17:56,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:17:57,005 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:17:57,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:57,029 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:17:57,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:17:57,054 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:57,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:57,078 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:17:57,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:17:57,079 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:17:57,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:17:57,101 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 11:17:57,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770489658] [2021-03-24 11:17:57,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:17:57,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:17:57,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777811311] [2021-03-24 11:17:57,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:17:57,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:17:57,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:17:57,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:17:57,103 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:17:57,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 316 transitions, 4798 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 11:17:57,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:17:57,104 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:17:57,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:17:58,034 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-24 11:17:58,205 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2021-03-24 11:17:59,223 INFO L129 PetriNetUnfolder]: 619/2370 cut-off events. [2021-03-24 11:17:59,224 INFO L130 PetriNetUnfolder]: For 35617/35644 co-relation queries the response was YES. [2021-03-24 11:17:59,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16257 conditions, 2370 events. 619/2370 cut-off events. For 35617/35644 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 22845 event pairs, 373 based on Foata normal form. 21/2357 useless extension candidates. Maximal degree in co-relation 16156. Up to 1830 conditions per place. [2021-03-24 11:17:59,247 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 220 selfloop transitions, 77 changer transitions 28/335 dead transitions. [2021-03-24 11:17:59,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 335 transitions, 5718 flow [2021-03-24 11:17:59,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:17:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:17:59,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2021-03-24 11:17:59,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 11:17:59,249 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2466 transitions. [2021-03-24 11:17:59,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2466 transitions. [2021-03-24 11:17:59,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:17:59,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2466 transitions. [2021-03-24 11:17:59,250 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 11:17:59,252 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 11:17:59,252 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 11:17:59,252 INFO L185 Difference]: Start difference. First operand has 310 places, 316 transitions, 4798 flow. Second operand 18 states and 2466 transitions. [2021-03-24 11:17:59,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 335 transitions, 5718 flow [2021-03-24 11:17:59,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 335 transitions, 5493 flow, removed 15 selfloop flow, removed 19 redundant places. [2021-03-24 11:17:59,370 INFO L241 Difference]: Finished difference. Result has 300 places, 298 transitions, 4431 flow [2021-03-24 11:17:59,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4575, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4431, PETRI_PLACES=300, PETRI_TRANSITIONS=298} [2021-03-24 11:17:59,370 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 234 predicate places. [2021-03-24 11:17:59,370 INFO L480 AbstractCegarLoop]: Abstraction has has 300 places, 298 transitions, 4431 flow [2021-03-24 11:17:59,370 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 11:17:59,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:17:59,370 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 11:17:59,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-24 11:17:59,370 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 11:17:59,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:17:59,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1654318601, now seen corresponding path program 49 times [2021-03-24 11:17:59,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:17:59,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380786465] [2021-03-24 11:17:59,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:17:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:17:59,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:59,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:17:59,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:17:59,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:17:59,433 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:17:59,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:17:59,451 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-03-24 11:17:59,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:17:59,476 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:17:59,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:17:59,515 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.3 percent of original size [2021-03-24 11:17:59,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:17:59,556 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.8 percent of original size [2021-03-24 11:17:59,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:17:59,594 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:17:59,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:17:59,622 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:17:59,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:17:59,648 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:17:59,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:17:59,683 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:17:59,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:17:59,719 INFO L142 QuantifierPusher]: treesize reduction 47, result has 58.8 percent of original size [2021-03-24 11:17:59,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:17:59,764 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 11:17:59,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:17:59,807 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 11:17:59,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:17:59,821 INFO L142 QuantifierPusher]: treesize reduction 39, result has 57.6 percent of original size [2021-03-24 11:17:59,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:17:59,861 INFO L142 QuantifierPusher]: treesize reduction 39, result has 57.6 percent of original size [2021-03-24 11:17:59,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:17:59,903 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.6 percent of original size [2021-03-24 11:17:59,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 11:17:59,952 INFO L142 QuantifierPusher]: treesize reduction 54, result has 63.8 percent of original size [2021-03-24 11:17:59,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 11:18:00,023 INFO L142 QuantifierPusher]: treesize reduction 29, result has 66.3 percent of original size [2021-03-24 11:18:00,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 11:18:00,063 INFO L142 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-03-24 11:18:00,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:18:00,084 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-24 11:18:00,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:18:00,124 INFO L142 QuantifierPusher]: treesize reduction 52, result has 43.5 percent of original size [2021-03-24 11:18:00,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:00,165 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.1 percent of original size [2021-03-24 11:18:00,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:00,202 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:00,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:00,225 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:00,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:00,225 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:00,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:00,247 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 11:18:00,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380786465] [2021-03-24 11:18:00,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:00,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:18:00,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635596804] [2021-03-24 11:18:00,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:18:00,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:00,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:18:00,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:18:00,249 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:18:00,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 298 transitions, 4431 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 11:18:00,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:00,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:18:00,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:01,233 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-03-24 11:18:01,758 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-24 11:18:01,916 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-24 11:18:02,481 INFO L129 PetriNetUnfolder]: 607/2318 cut-off events. [2021-03-24 11:18:02,481 INFO L130 PetriNetUnfolder]: For 32262/32299 co-relation queries the response was YES. [2021-03-24 11:18:02,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15697 conditions, 2318 events. 607/2318 cut-off events. For 32262/32299 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 22197 event pairs, 369 based on Foata normal form. 20/2302 useless extension candidates. Maximal degree in co-relation 15600. Up to 1791 conditions per place. [2021-03-24 11:18:02,503 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 204 selfloop transitions, 70 changer transitions 38/318 dead transitions. [2021-03-24 11:18:02,503 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 318 transitions, 5321 flow [2021-03-24 11:18:02,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:02,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1608 transitions. [2021-03-24 11:18:02,504 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3213429256594724 [2021-03-24 11:18:02,504 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1608 transitions. [2021-03-24 11:18:02,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1608 transitions. [2021-03-24 11:18:02,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:02,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1608 transitions. [2021-03-24 11:18:02,505 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 11:18:02,507 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 11:18:02,507 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 11:18:02,507 INFO L185 Difference]: Start difference. First operand has 300 places, 298 transitions, 4431 flow. Second operand 18 states and 1608 transitions. [2021-03-24 11:18:02,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 318 transitions, 5321 flow [2021-03-24 11:18:02,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 318 transitions, 5131 flow, removed 16 selfloop flow, removed 20 redundant places. [2021-03-24 11:18:02,607 INFO L241 Difference]: Finished difference. Result has 278 places, 271 transitions, 4044 flow [2021-03-24 11:18:02,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4245, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4044, PETRI_PLACES=278, PETRI_TRANSITIONS=271} [2021-03-24 11:18:02,609 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 212 predicate places. [2021-03-24 11:18:02,609 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 271 transitions, 4044 flow [2021-03-24 11:18:02,609 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 11:18:02,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:02,609 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 11:18:02,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-24 11:18:02,609 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 11:18:02,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:02,609 INFO L82 PathProgramCache]: Analyzing trace with hash 145203603, now seen corresponding path program 50 times [2021-03-24 11:18:02,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:02,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849653021] [2021-03-24 11:18:02,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:02,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:02,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:02,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:02,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:02,670 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:02,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:02,689 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:18:02,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:02,710 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:18:02,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:02,747 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:18:02,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:18:02,786 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:18:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:02,803 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:18:02,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:02,819 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:18:02,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:02,850 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:18:02,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:02,878 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:18:02,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:02,907 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:18:02,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:02,937 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:18:02,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:02,972 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:18:02,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:02,986 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:18:02,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:03,019 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:18:03,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:18:03,058 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-03-24 11:18:03,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:03,083 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-24 11:18:03,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:03,109 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:03,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:03,109 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:18:03,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:03,137 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:03,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:03,156 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:18:03,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:03,194 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:03,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:03,220 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:03,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:03,243 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:03,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:03,266 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 11:18:03,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849653021] [2021-03-24 11:18:03,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:03,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:03,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264061843] [2021-03-24 11:18:03,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:03,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:03,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:03,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:03,268 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:03,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 271 transitions, 4044 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 11:18:03,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:03,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:03,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:04,216 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-03-24 11:18:05,074 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-24 11:18:05,588 INFO L129 PetriNetUnfolder]: 597/2273 cut-off events. [2021-03-24 11:18:05,588 INFO L130 PetriNetUnfolder]: For 26619/26634 co-relation queries the response was YES. [2021-03-24 11:18:05,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14579 conditions, 2273 events. 597/2273 cut-off events. For 26619/26634 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 21664 event pairs, 330 based on Foata normal form. 9/2253 useless extension candidates. Maximal degree in co-relation 14490. Up to 1680 conditions per place. [2021-03-24 11:18:05,608 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 196 selfloop transitions, 99 changer transitions 23/328 dead transitions. [2021-03-24 11:18:05,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 328 transitions, 5510 flow [2021-03-24 11:18:05,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:05,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:05,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2482 transitions. [2021-03-24 11:18:05,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49600319744204635 [2021-03-24 11:18:05,610 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2482 transitions. [2021-03-24 11:18:05,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2482 transitions. [2021-03-24 11:18:05,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:05,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2482 transitions. [2021-03-24 11:18:05,611 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 11:18:05,613 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 11:18:05,613 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 11:18:05,613 INFO L185 Difference]: Start difference. First operand has 278 places, 271 transitions, 4044 flow. Second operand 18 states and 2482 transitions. [2021-03-24 11:18:05,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 328 transitions, 5510 flow [2021-03-24 11:18:05,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 328 transitions, 5274 flow, removed 44 selfloop flow, removed 23 redundant places. [2021-03-24 11:18:05,692 INFO L241 Difference]: Finished difference. Result has 251 places, 286 transitions, 4433 flow [2021-03-24 11:18:05,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3858, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4433, PETRI_PLACES=251, PETRI_TRANSITIONS=286} [2021-03-24 11:18:05,692 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 185 predicate places. [2021-03-24 11:18:05,692 INFO L480 AbstractCegarLoop]: Abstraction has has 251 places, 286 transitions, 4433 flow [2021-03-24 11:18:05,693 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 11:18:05,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:05,693 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 11:18:05,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-24 11:18:05,693 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 11:18:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:05,693 INFO L82 PathProgramCache]: Analyzing trace with hash -977005121, now seen corresponding path program 51 times [2021-03-24 11:18:05,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:05,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158535610] [2021-03-24 11:18:05,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:05,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:05,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:05,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:05,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:05,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:05,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:05,776 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:18:05,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:05,798 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:18:05,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:05,835 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:18:05,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:18:05,876 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:18:05,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:05,903 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:18:05,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:05,929 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:18:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:05,965 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 11:18:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:06,002 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 11:18:06,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:06,035 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 11:18:06,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:06,071 INFO L142 QuantifierPusher]: treesize reduction 42, result has 60.4 percent of original size [2021-03-24 11:18:06,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:18:06,118 INFO L142 QuantifierPusher]: treesize reduction 42, result has 58.4 percent of original size [2021-03-24 11:18:06,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:18:06,134 INFO L142 QuantifierPusher]: treesize reduction 57, result has 57.1 percent of original size [2021-03-24 11:18:06,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 11:18:06,190 INFO L142 QuantifierPusher]: treesize reduction 62, result has 53.0 percent of original size [2021-03-24 11:18:06,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:18:06,246 INFO L142 QuantifierPusher]: treesize reduction 59, result has 53.9 percent of original size [2021-03-24 11:18:06,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:18:06,303 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.7 percent of original size [2021-03-24 11:18:06,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 11:18:06,367 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:18:06,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:06,406 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:18:06,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:06,428 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:18:06,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:06,449 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:18:06,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:06,486 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:18:06,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:06,524 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:06,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:06,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:06,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:06,570 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 11:18:06,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158535610] [2021-03-24 11:18:06,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:06,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:06,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822328328] [2021-03-24 11:18:06,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:06,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:06,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:06,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:06,572 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:06,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 286 transitions, 4433 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 11:18:06,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:06,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:06,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:07,348 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-24 11:18:07,595 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-24 11:18:07,892 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2021-03-24 11:18:08,100 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2021-03-24 11:18:08,502 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-03-24 11:18:08,953 INFO L129 PetriNetUnfolder]: 588/2249 cut-off events. [2021-03-24 11:18:08,954 INFO L130 PetriNetUnfolder]: For 26452/26467 co-relation queries the response was YES. [2021-03-24 11:18:08,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14410 conditions, 2249 events. 588/2249 cut-off events. For 26452/26467 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 21431 event pairs, 366 based on Foata normal form. 9/2228 useless extension candidates. Maximal degree in co-relation 14328. Up to 1800 conditions per place. [2021-03-24 11:18:08,971 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 209 selfloop transitions, 69 changer transitions 19/307 dead transitions. [2021-03-24 11:18:08,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 307 transitions, 5256 flow [2021-03-24 11:18:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:08,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 11:18:08,973 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 11:18:08,973 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 11:18:08,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 11:18:08,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:08,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 11:18:08,975 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 11:18:08,976 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 11:18:08,977 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 11:18:08,977 INFO L185 Difference]: Start difference. First operand has 251 places, 286 transitions, 4433 flow. Second operand 18 states and 2470 transitions. [2021-03-24 11:18:08,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 307 transitions, 5256 flow [2021-03-24 11:18:09,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 307 transitions, 4993 flow, removed 33 selfloop flow, removed 15 redundant places. [2021-03-24 11:18:09,057 INFO L241 Difference]: Finished difference. Result has 252 places, 282 transitions, 4242 flow [2021-03-24 11:18:09,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4179, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4242, PETRI_PLACES=252, PETRI_TRANSITIONS=282} [2021-03-24 11:18:09,057 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 186 predicate places. [2021-03-24 11:18:09,057 INFO L480 AbstractCegarLoop]: Abstraction has has 252 places, 282 transitions, 4242 flow [2021-03-24 11:18:09,057 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 11:18:09,057 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:09,057 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 11:18:09,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-24 11:18:09,058 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 11:18:09,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:09,058 INFO L82 PathProgramCache]: Analyzing trace with hash 139676879, now seen corresponding path program 52 times [2021-03-24 11:18:09,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:09,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976218128] [2021-03-24 11:18:09,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:09,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:09,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:09,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:09,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:09,120 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:09,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:09,139 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:18:09,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:09,166 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 11:18:09,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:18:09,207 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.7 percent of original size [2021-03-24 11:18:09,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:18:09,250 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:18:09,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:09,277 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:18:09,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:09,303 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:18:09,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:09,339 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:09,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:09,372 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:09,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:09,407 INFO L142 QuantifierPusher]: treesize reduction 31, result has 62.2 percent of original size [2021-03-24 11:18:09,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:18:09,449 INFO L142 QuantifierPusher]: treesize reduction 31, result has 62.2 percent of original size [2021-03-24 11:18:09,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:18:09,491 INFO L142 QuantifierPusher]: treesize reduction 54, result has 60.0 percent of original size [2021-03-24 11:18:09,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 11:18:09,551 INFO L142 QuantifierPusher]: treesize reduction 54, result has 58.5 percent of original size [2021-03-24 11:18:09,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 11:18:09,570 INFO L142 QuantifierPusher]: treesize reduction 59, result has 54.3 percent of original size [2021-03-24 11:18:09,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:18:09,626 INFO L142 QuantifierPusher]: treesize reduction 59, result has 53.9 percent of original size [2021-03-24 11:18:09,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:18:09,683 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.7 percent of original size [2021-03-24 11:18:09,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 11:18:09,748 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:18:09,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:09,788 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:18:09,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:09,811 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:18:09,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:09,846 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:18:09,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:09,886 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:09,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:09,910 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:09,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:09,910 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:09,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:09,933 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 11:18:09,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976218128] [2021-03-24 11:18:09,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:09,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:09,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918112157] [2021-03-24 11:18:09,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:09,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:09,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:09,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:09,935 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:09,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 282 transitions, 4242 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 11:18:09,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:09,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:09,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:10,686 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-03-24 11:18:10,884 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-03-24 11:18:11,147 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-03-24 11:18:11,357 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-03-24 11:18:12,244 INFO L129 PetriNetUnfolder]: 587/2250 cut-off events. [2021-03-24 11:18:12,245 INFO L130 PetriNetUnfolder]: For 24945/24960 co-relation queries the response was YES. [2021-03-24 11:18:12,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14140 conditions, 2250 events. 587/2250 cut-off events. For 24945/24960 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 21423 event pairs, 356 based on Foata normal form. 9/2230 useless extension candidates. Maximal degree in co-relation 14058. Up to 1765 conditions per place. [2021-03-24 11:18:12,259 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 227 selfloop transitions, 67 changer transitions 19/323 dead transitions. [2021-03-24 11:18:12,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 323 transitions, 5413 flow [2021-03-24 11:18:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:12,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:12,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2021-03-24 11:18:12,261 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49300559552358114 [2021-03-24 11:18:12,261 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2467 transitions. [2021-03-24 11:18:12,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2467 transitions. [2021-03-24 11:18:12,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:12,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2467 transitions. [2021-03-24 11:18:12,263 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 11:18:12,265 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 11:18:12,265 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 11:18:12,265 INFO L185 Difference]: Start difference. First operand has 252 places, 282 transitions, 4242 flow. Second operand 18 states and 2467 transitions. [2021-03-24 11:18:12,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 323 transitions, 5413 flow [2021-03-24 11:18:12,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 323 transitions, 5229 flow, removed 10 selfloop flow, removed 17 redundant places. [2021-03-24 11:18:12,334 INFO L241 Difference]: Finished difference. Result has 254 places, 293 transitions, 4460 flow [2021-03-24 11:18:12,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4074, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4460, PETRI_PLACES=254, PETRI_TRANSITIONS=293} [2021-03-24 11:18:12,334 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 188 predicate places. [2021-03-24 11:18:12,334 INFO L480 AbstractCegarLoop]: Abstraction has has 254 places, 293 transitions, 4460 flow [2021-03-24 11:18:12,335 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 11:18:12,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:12,335 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 11:18:12,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-24 11:18:12,335 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 11:18:12,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:12,335 INFO L82 PathProgramCache]: Analyzing trace with hash -309489239, now seen corresponding path program 53 times [2021-03-24 11:18:12,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:12,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078566] [2021-03-24 11:18:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:12,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:12,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:12,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:12,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:12,390 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:12,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:12,409 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-03-24 11:18:12,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:12,438 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 11:18:12,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:18:12,480 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-03-24 11:18:12,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:18:12,529 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:18:12,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:12,546 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:12,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:12,563 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:18:12,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:12,583 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:18:12,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:12,604 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:18:12,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:12,623 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:18:12,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:12,643 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:18:12,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:12,667 INFO L142 QuantifierPusher]: treesize reduction 48, result has 45.5 percent of original size [2021-03-24 11:18:12,668 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 11:18:12,701 INFO L142 QuantifierPusher]: treesize reduction 48, result has 42.2 percent of original size [2021-03-24 11:18:12,702 INFO L147 QuantifierPusher]: treesize reduction 5, result has 85.7 percent of original size 30 [2021-03-24 11:18:12,716 INFO L142 QuantifierPusher]: treesize reduction 43, result has 45.6 percent of original size [2021-03-24 11:18:12,717 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size 29 [2021-03-24 11:18:12,754 INFO L142 QuantifierPusher]: treesize reduction 48, result has 45.5 percent of original size [2021-03-24 11:18:12,754 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 11:18:12,790 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:18:12,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:12,814 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:12,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:12,831 INFO L142 QuantifierPusher]: treesize reduction 16, result has 52.9 percent of original size [2021-03-24 11:18:12,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:12,852 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:12,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:12,876 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:18:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:12,898 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:12,920 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:12,921 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:12,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:12,943 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 11:18:12,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078566] [2021-03-24 11:18:12,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:12,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:12,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487090980] [2021-03-24 11:18:12,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:12,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:12,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:12,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:12,945 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:12,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 293 transitions, 4460 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 11:18:12,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:12,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:12,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:13,758 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-03-24 11:18:14,025 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-03-24 11:18:15,052 INFO L129 PetriNetUnfolder]: 588/2260 cut-off events. [2021-03-24 11:18:15,052 INFO L130 PetriNetUnfolder]: For 24823/24838 co-relation queries the response was YES. [2021-03-24 11:18:15,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14230 conditions, 2260 events. 588/2260 cut-off events. For 24823/24838 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 21611 event pairs, 358 based on Foata normal form. 9/2240 useless extension candidates. Maximal degree in co-relation 14144. Up to 1776 conditions per place. [2021-03-24 11:18:15,074 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 211 selfloop transitions, 95 changer transitions 9/325 dead transitions. [2021-03-24 11:18:15,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 325 transitions, 5510 flow [2021-03-24 11:18:15,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:18:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:18:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2608 transitions. [2021-03-24 11:18:15,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4937523665278304 [2021-03-24 11:18:15,076 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2608 transitions. [2021-03-24 11:18:15,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2608 transitions. [2021-03-24 11:18:15,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:15,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2608 transitions. [2021-03-24 11:18:15,096 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 11:18:15,098 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 11:18:15,098 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 11:18:15,098 INFO L185 Difference]: Start difference. First operand has 254 places, 293 transitions, 4460 flow. Second operand 19 states and 2608 transitions. [2021-03-24 11:18:15,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 325 transitions, 5510 flow [2021-03-24 11:18:15,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 325 transitions, 5361 flow, removed 19 selfloop flow, removed 12 redundant places. [2021-03-24 11:18:15,188 INFO L241 Difference]: Finished difference. Result has 260 places, 303 transitions, 4711 flow [2021-03-24 11:18:15,188 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4320, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4711, PETRI_PLACES=260, PETRI_TRANSITIONS=303} [2021-03-24 11:18:15,188 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 194 predicate places. [2021-03-24 11:18:15,188 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 303 transitions, 4711 flow [2021-03-24 11:18:15,188 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 11:18:15,188 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:15,188 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 11:18:15,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-24 11:18:15,188 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 11:18:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:15,189 INFO L82 PathProgramCache]: Analyzing trace with hash 76809263, now seen corresponding path program 54 times [2021-03-24 11:18:15,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:15,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555353634] [2021-03-24 11:18:15,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:15,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:15,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:15,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:15,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:15,244 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:15,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:15,263 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:18:15,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:15,292 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:18:15,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:15,332 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:18:15,333 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:18:15,380 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:18:15,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:15,396 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:18:15,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:15,413 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:15,414 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:15,444 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:15,445 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:15,478 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:15,478 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:15,508 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:15,509 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:15,539 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:15,539 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:18:15,574 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:15,585 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:18:15,599 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:18:15,600 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:18:15,632 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:18:15,633 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:18:15,666 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:18:15,667 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:18:15,703 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:18:15,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:15,727 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:18:15,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:15,752 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:15,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:15,770 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:18:15,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:15,793 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:15,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:15,818 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:15,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:15,842 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:15,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:15,842 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:15,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:15,865 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 11:18:15,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555353634] [2021-03-24 11:18:15,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:15,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:15,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502238153] [2021-03-24 11:18:15,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:15,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:15,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:15,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:15,867 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:15,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 303 transitions, 4711 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 11:18:15,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:15,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:15,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:16,862 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:18:17,031 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:18:18,022 INFO L129 PetriNetUnfolder]: 595/2282 cut-off events. [2021-03-24 11:18:18,023 INFO L130 PetriNetUnfolder]: For 25753/25768 co-relation queries the response was YES. [2021-03-24 11:18:18,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14419 conditions, 2282 events. 595/2282 cut-off events. For 25753/25768 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 21859 event pairs, 371 based on Foata normal form. 9/2262 useless extension candidates. Maximal degree in co-relation 14333. Up to 1860 conditions per place. [2021-03-24 11:18:18,042 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 231 selfloop transitions, 65 changer transitions 19/325 dead transitions. [2021-03-24 11:18:18,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 325 transitions, 5581 flow [2021-03-24 11:18:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:18,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 11:18:18,044 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 11:18:18,044 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 11:18:18,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 11:18:18,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:18,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 11:18:18,046 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 11:18:18,048 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 11:18:18,048 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 11:18:18,048 INFO L185 Difference]: Start difference. First operand has 260 places, 303 transitions, 4711 flow. Second operand 18 states and 2468 transitions. [2021-03-24 11:18:18,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 325 transitions, 5581 flow [2021-03-24 11:18:18,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 325 transitions, 5414 flow, removed 27 selfloop flow, removed 11 redundant places. [2021-03-24 11:18:18,140 INFO L241 Difference]: Finished difference. Result has 269 places, 302 transitions, 4685 flow [2021-03-24 11:18:18,140 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4546, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4685, PETRI_PLACES=269, PETRI_TRANSITIONS=302} [2021-03-24 11:18:18,140 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 203 predicate places. [2021-03-24 11:18:18,140 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 302 transitions, 4685 flow [2021-03-24 11:18:18,141 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 11:18:18,141 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:18,141 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 11:18:18,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-24 11:18:18,141 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 11:18:18,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:18,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1015864001, now seen corresponding path program 55 times [2021-03-24 11:18:18,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:18,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876204633] [2021-03-24 11:18:18,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:18,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:18,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:18,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:18,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:18,198 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:18,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:18,230 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:18:18,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:18,269 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:18:18,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:18,309 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:18:18,309 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:18:18,354 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:18:18,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:18,370 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:18:18,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:18,387 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:18,387 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:18,417 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:18,417 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:18,444 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:18,444 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:18,472 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:18,473 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:18,501 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:18,502 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:18:18,535 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:18,536 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:18:18,549 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:18:18,550 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:18:18,581 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:18,581 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:18:18,615 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:18:18,615 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:18:18,650 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:18:18,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:18,673 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:18:18,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:18,698 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:18,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:18,715 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:18:18,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:18,737 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:18,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:18,762 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:18,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:18,785 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:18,786 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:18,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:18,808 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 11:18:18,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876204633] [2021-03-24 11:18:18,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:18,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:18,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093663894] [2021-03-24 11:18:18,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:18,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:18,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:18,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:18,810 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:18,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 302 transitions, 4685 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 11:18:18,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:18,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:18,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:19,528 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:18:19,837 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-03-24 11:18:21,031 INFO L129 PetriNetUnfolder]: 584/2232 cut-off events. [2021-03-24 11:18:21,031 INFO L130 PetriNetUnfolder]: For 26583/26598 co-relation queries the response was YES. [2021-03-24 11:18:21,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14335 conditions, 2232 events. 584/2232 cut-off events. For 26583/26598 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 21233 event pairs, 348 based on Foata normal form. 9/2213 useless extension candidates. Maximal degree in co-relation 14245. Up to 1783 conditions per place. [2021-03-24 11:18:21,053 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 237 selfloop transitions, 70 changer transitions 21/338 dead transitions. [2021-03-24 11:18:21,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 338 transitions, 5762 flow [2021-03-24 11:18:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2477 transitions. [2021-03-24 11:18:21,055 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49500399680255797 [2021-03-24 11:18:21,055 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2477 transitions. [2021-03-24 11:18:21,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2477 transitions. [2021-03-24 11:18:21,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:21,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2477 transitions. [2021-03-24 11:18:21,057 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 11:18:21,058 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 11:18:21,059 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 11:18:21,059 INFO L185 Difference]: Start difference. First operand has 269 places, 302 transitions, 4685 flow. Second operand 18 states and 2477 transitions. [2021-03-24 11:18:21,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 338 transitions, 5762 flow [2021-03-24 11:18:21,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 338 transitions, 5608 flow, removed 17 selfloop flow, removed 13 redundant places. [2021-03-24 11:18:21,158 INFO L241 Difference]: Finished difference. Result has 272 places, 307 transitions, 4784 flow [2021-03-24 11:18:21,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4547, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4784, PETRI_PLACES=272, PETRI_TRANSITIONS=307} [2021-03-24 11:18:21,158 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 206 predicate places. [2021-03-24 11:18:21,158 INFO L480 AbstractCegarLoop]: Abstraction has has 272 places, 307 transitions, 4784 flow [2021-03-24 11:18:21,159 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 11:18:21,159 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:21,159 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 11:18:21,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-24 11:18:21,159 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 11:18:21,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:21,159 INFO L82 PathProgramCache]: Analyzing trace with hash 315764155, now seen corresponding path program 56 times [2021-03-24 11:18:21,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:21,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720046489] [2021-03-24 11:18:21,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:21,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:21,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:21,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:21,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:21,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:21,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:21,242 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:18:21,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:21,270 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 11:18:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:18:21,313 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:18:21,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:18:21,358 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:18:21,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:21,376 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:21,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:21,393 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:18:21,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:21,414 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:18:21,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:21,437 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:18:21,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:21,457 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:18:21,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:21,478 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:18:21,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:21,503 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:18:21,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:21,517 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:18:21,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:21,540 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:18:21,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:21,566 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:21,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:21,589 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:18:21,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:21,614 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:21,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:21,631 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:18:21,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:21,654 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:21,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:21,680 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:18:21,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:21,702 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:21,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:21,726 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:21,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:21,727 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:21,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:21,750 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 11:18:21,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720046489] [2021-03-24 11:18:21,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:21,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:21,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42567834] [2021-03-24 11:18:21,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:21,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:21,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:21,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:21,752 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:21,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 307 transitions, 4784 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 11:18:21,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:21,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:21,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:22,746 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:18:23,934 INFO L129 PetriNetUnfolder]: 572/2203 cut-off events. [2021-03-24 11:18:23,935 INFO L130 PetriNetUnfolder]: For 25969/25984 co-relation queries the response was YES. [2021-03-24 11:18:23,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14095 conditions, 2203 events. 572/2203 cut-off events. For 25969/25984 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 20953 event pairs, 345 based on Foata normal form. 9/2184 useless extension candidates. Maximal degree in co-relation 14004. Up to 1781 conditions per place. [2021-03-24 11:18:23,954 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 237 selfloop transitions, 73 changer transitions 15/335 dead transitions. [2021-03-24 11:18:23,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 335 transitions, 5777 flow [2021-03-24 11:18:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:18:23,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:18:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2604 transitions. [2021-03-24 11:18:23,956 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4929950776221128 [2021-03-24 11:18:23,956 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2604 transitions. [2021-03-24 11:18:23,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2604 transitions. [2021-03-24 11:18:23,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:23,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2604 transitions. [2021-03-24 11:18:23,957 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 11:18:23,959 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 11:18:23,959 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 11:18:23,960 INFO L185 Difference]: Start difference. First operand has 272 places, 307 transitions, 4784 flow. Second operand 19 states and 2604 transitions. [2021-03-24 11:18:23,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 335 transitions, 5777 flow [2021-03-24 11:18:24,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 335 transitions, 5619 flow, removed 9 selfloop flow, removed 15 redundant places. [2021-03-24 11:18:24,058 INFO L241 Difference]: Finished difference. Result has 275 places, 310 transitions, 4856 flow [2021-03-24 11:18:24,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4636, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4856, PETRI_PLACES=275, PETRI_TRANSITIONS=310} [2021-03-24 11:18:24,058 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 209 predicate places. [2021-03-24 11:18:24,058 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 310 transitions, 4856 flow [2021-03-24 11:18:24,058 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 11:18:24,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:24,059 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 11:18:24,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-24 11:18:24,059 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 11:18:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:24,059 INFO L82 PathProgramCache]: Analyzing trace with hash -507529619, now seen corresponding path program 57 times [2021-03-24 11:18:24,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:24,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896472741] [2021-03-24 11:18:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:24,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:24,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:24,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:24,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:24,116 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:24,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:24,134 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:18:24,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:24,161 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:18:24,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:24,201 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:18:24,202 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:18:24,248 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:18:24,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:24,265 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:18:24,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:24,283 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:24,283 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:24,314 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:24,315 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:24,348 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:24,348 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:24,378 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:24,379 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:24,409 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:24,410 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:18:24,445 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:24,446 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:18:24,460 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:18:24,460 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:18:24,493 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:24,493 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:18:24,528 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:18:24,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:24,551 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:18:24,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:24,575 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:18:24,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:24,600 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:24,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:24,618 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:18:24,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:24,642 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:24,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:24,668 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:24,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:24,691 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:24,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:24,692 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:24,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:24,715 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 11:18:24,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896472741] [2021-03-24 11:18:24,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:24,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:24,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666454444] [2021-03-24 11:18:24,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:24,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:24,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:24,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:24,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:24,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 310 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 11:18:24,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:24,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:24,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:26,756 INFO L129 PetriNetUnfolder]: 556/2155 cut-off events. [2021-03-24 11:18:26,756 INFO L130 PetriNetUnfolder]: For 26670/26685 co-relation queries the response was YES. [2021-03-24 11:18:26,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13980 conditions, 2155 events. 556/2155 cut-off events. For 26670/26685 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 20339 event pairs, 344 based on Foata normal form. 10/2135 useless extension candidates. Maximal degree in co-relation 13889. Up to 1748 conditions per place. [2021-03-24 11:18:26,776 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 235 selfloop transitions, 70 changer transitions 11/326 dead transitions. [2021-03-24 11:18:26,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 326 transitions, 5670 flow [2021-03-24 11:18:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:26,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2021-03-24 11:18:26,778 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 11:18:26,778 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2466 transitions. [2021-03-24 11:18:26,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2466 transitions. [2021-03-24 11:18:26,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:26,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2466 transitions. [2021-03-24 11:18:26,779 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 11:18:26,781 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 11:18:26,781 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 11:18:26,781 INFO L185 Difference]: Start difference. First operand has 275 places, 310 transitions, 4856 flow. Second operand 18 states and 2466 transitions. [2021-03-24 11:18:26,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 326 transitions, 5670 flow [2021-03-24 11:18:26,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 326 transitions, 5455 flow, removed 30 selfloop flow, removed 14 redundant places. [2021-03-24 11:18:26,887 INFO L241 Difference]: Finished difference. Result has 277 places, 308 transitions, 4784 flow [2021-03-24 11:18:26,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4665, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4784, PETRI_PLACES=277, PETRI_TRANSITIONS=308} [2021-03-24 11:18:26,887 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 211 predicate places. [2021-03-24 11:18:26,887 INFO L480 AbstractCegarLoop]: Abstraction has has 277 places, 308 transitions, 4784 flow [2021-03-24 11:18:26,888 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 11:18:26,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:26,888 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 11:18:26,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-24 11:18:26,888 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 11:18:26,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:26,888 INFO L82 PathProgramCache]: Analyzing trace with hash 2020626755, now seen corresponding path program 58 times [2021-03-24 11:18:26,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:26,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054698042] [2021-03-24 11:18:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:26,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:26,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:26,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:26,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:26,963 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:26,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:26,980 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:18:26,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:27,005 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:18:27,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:27,043 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:18:27,044 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:18:27,089 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:18:27,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:27,106 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:18:27,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:27,122 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:27,122 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:27,156 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:27,156 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:27,193 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:27,193 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:27,226 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:27,227 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:27,261 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:27,261 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:18:27,300 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:27,301 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:18:27,316 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:18:27,316 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:18:27,351 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:27,352 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:18:27,389 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:18:27,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:27,412 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:18:27,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:27,438 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:18:27,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:27,455 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:18:27,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:27,479 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:18:27,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:27,504 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:27,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:27,529 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:27,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:27,551 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:27,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:27,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:27,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:27,572 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 11:18:27,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054698042] [2021-03-24 11:18:27,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:27,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:27,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533300868] [2021-03-24 11:18:27,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:27,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:27,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:27,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:27,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:27,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 308 transitions, 4784 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 11:18:27,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:27,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:27,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:29,584 INFO L129 PetriNetUnfolder]: 552/2117 cut-off events. [2021-03-24 11:18:29,584 INFO L130 PetriNetUnfolder]: For 26045/26076 co-relation queries the response was YES. [2021-03-24 11:18:29,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13701 conditions, 2117 events. 552/2117 cut-off events. For 26045/26076 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 19890 event pairs, 338 based on Foata normal form. 11/2097 useless extension candidates. Maximal degree in co-relation 13610. Up to 1735 conditions per place. [2021-03-24 11:18:29,603 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 231 selfloop transitions, 69 changer transitions 11/321 dead transitions. [2021-03-24 11:18:29,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 321 transitions, 5551 flow [2021-03-24 11:18:29,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:18:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:18:29,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2599 transitions. [2021-03-24 11:18:29,605 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4920484664899659 [2021-03-24 11:18:29,606 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2599 transitions. [2021-03-24 11:18:29,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2599 transitions. [2021-03-24 11:18:29,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:29,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2599 transitions. [2021-03-24 11:18:29,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.78947368421052) internal successors, (2599), 19 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:29,609 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 11:18:29,609 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 11:18:29,609 INFO L185 Difference]: Start difference. First operand has 277 places, 308 transitions, 4784 flow. Second operand 19 states and 2599 transitions. [2021-03-24 11:18:29,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 321 transitions, 5551 flow [2021-03-24 11:18:29,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 321 transitions, 5422 flow, removed 2 selfloop flow, removed 13 redundant places. [2021-03-24 11:18:29,710 INFO L241 Difference]: Finished difference. Result has 280 places, 303 transitions, 4724 flow [2021-03-24 11:18:29,710 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4659, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4724, PETRI_PLACES=280, PETRI_TRANSITIONS=303} [2021-03-24 11:18:29,710 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 214 predicate places. [2021-03-24 11:18:29,710 INFO L480 AbstractCegarLoop]: Abstraction has has 280 places, 303 transitions, 4724 flow [2021-03-24 11:18:29,710 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 11:18:29,711 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:29,711 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 11:18:29,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-24 11:18:29,711 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 11:18:29,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:29,711 INFO L82 PathProgramCache]: Analyzing trace with hash -392420679, now seen corresponding path program 59 times [2021-03-24 11:18:29,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:29,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160664287] [2021-03-24 11:18:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:29,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:29,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:29,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:29,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:29,774 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:29,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:29,793 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:18:29,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:29,825 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:18:29,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:18:29,867 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:18:29,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:18:29,913 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:18:29,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:29,933 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:18:29,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:29,950 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:18:29,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:29,966 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:18:29,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:29,985 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:18:29,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:30,002 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:18:30,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:30,021 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:18:30,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:30,042 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:18:30,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:30,066 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:18:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:30,092 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:18:30,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:30,108 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:18:30,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:30,132 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:18:30,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:30,158 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:18:30,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:18:30,181 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:18:30,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:30,207 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:18:30,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:30,226 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:18:30,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:30,250 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:18:30,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:30,275 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:18:30,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:30,298 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:18:30,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:30,299 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:18:30,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:18:30,320 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 11:18:30,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160664287] [2021-03-24 11:18:30,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:30,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:18:30,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376887288] [2021-03-24 11:18:30,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:18:30,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:30,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:18:30,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:18:30,322 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:18:30,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 303 transitions, 4724 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 11:18:30,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:30,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:18:30,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:31,227 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-03-24 11:18:31,543 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:18:32,497 INFO L129 PetriNetUnfolder]: 560/2136 cut-off events. [2021-03-24 11:18:32,498 INFO L130 PetriNetUnfolder]: For 26213/26228 co-relation queries the response was YES. [2021-03-24 11:18:32,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13879 conditions, 2136 events. 560/2136 cut-off events. For 26213/26228 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 20049 event pairs, 337 based on Foata normal form. 5/2111 useless extension candidates. Maximal degree in co-relation 13788. Up to 1717 conditions per place. [2021-03-24 11:18:32,517 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 241 selfloop transitions, 67 changer transitions 25/339 dead transitions. [2021-03-24 11:18:32,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 339 transitions, 5836 flow [2021-03-24 11:18:32,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:32,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1612 transitions. [2021-03-24 11:18:32,519 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32214228617106316 [2021-03-24 11:18:32,519 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1612 transitions. [2021-03-24 11:18:32,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1612 transitions. [2021-03-24 11:18:32,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:32,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1612 transitions. [2021-03-24 11:18:32,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.55555555555556) internal successors, (1612), 18 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,521 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 11:18:32,522 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 11:18:32,522 INFO L185 Difference]: Start difference. First operand has 280 places, 303 transitions, 4724 flow. Second operand 18 states and 1612 transitions. [2021-03-24 11:18:32,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 339 transitions, 5836 flow [2021-03-24 11:18:32,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 339 transitions, 5662 flow, removed 13 selfloop flow, removed 20 redundant places. [2021-03-24 11:18:32,621 INFO L241 Difference]: Finished difference. Result has 279 places, 308 transitions, 4818 flow [2021-03-24 11:18:32,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4568, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4818, PETRI_PLACES=279, PETRI_TRANSITIONS=308} [2021-03-24 11:18:32,621 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 213 predicate places. [2021-03-24 11:18:32,621 INFO L480 AbstractCegarLoop]: Abstraction has has 279 places, 308 transitions, 4818 flow [2021-03-24 11:18:32,622 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 11:18:32,622 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:32,622 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 11:18:32,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-24 11:18:32,622 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 11:18:32,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:32,622 INFO L82 PathProgramCache]: Analyzing trace with hash 2142231103, now seen corresponding path program 60 times [2021-03-24 11:18:32,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:32,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127585031] [2021-03-24 11:18:32,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:32,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:32,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:32,683 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:32,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:32,702 INFO L142 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size [2021-03-24 11:18:32,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:32,725 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:32,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:32,761 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-24 11:18:32,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:18:32,804 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:18:32,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:32,821 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:32,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:32,838 INFO L142 QuantifierPusher]: treesize reduction 16, result has 74.2 percent of original size [2021-03-24 11:18:32,838 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:18:32,871 INFO L142 QuantifierPusher]: treesize reduction 16, result has 74.2 percent of original size [2021-03-24 11:18:32,871 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:18:32,905 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:18:32,906 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:18:32,937 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:18:32,938 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:18:32,970 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-03-24 11:18:32,971 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 11:18:33,005 INFO L142 QuantifierPusher]: treesize reduction 33, result has 60.7 percent of original size [2021-03-24 11:18:33,005 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 11:18:33,060 INFO L142 QuantifierPusher]: treesize reduction 33, result has 60.7 percent of original size [2021-03-24 11:18:33,061 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 11:18:33,119 INFO L142 QuantifierPusher]: treesize reduction 40, result has 49.4 percent of original size [2021-03-24 11:18:33,119 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:18:33,136 INFO L142 QuantifierPusher]: treesize reduction 42, result has 44.0 percent of original size [2021-03-24 11:18:33,136 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 11:18:33,173 INFO L142 QuantifierPusher]: treesize reduction 33, result has 58.2 percent of original size [2021-03-24 11:18:33,174 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:18:33,230 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 11:18:33,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:33,255 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:18:33,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:33,275 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:33,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:33,276 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:18:33,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:33,299 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:33,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:33,325 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:33,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:33,348 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:33,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:33,370 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 11:18:33,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127585031] [2021-03-24 11:18:33,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:33,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:33,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532320225] [2021-03-24 11:18:33,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:33,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:33,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:33,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:33,372 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:33,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 308 transitions, 4818 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 11:18:33,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:33,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:33,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:34,116 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2021-03-24 11:18:34,295 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 11:18:34,550 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-03-24 11:18:34,824 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2021-03-24 11:18:35,699 INFO L129 PetriNetUnfolder]: 547/2088 cut-off events. [2021-03-24 11:18:35,699 INFO L130 PetriNetUnfolder]: For 26173/26188 co-relation queries the response was YES. [2021-03-24 11:18:35,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13682 conditions, 2088 events. 547/2088 cut-off events. For 26173/26188 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 19460 event pairs, 328 based on Foata normal form. 9/2070 useless extension candidates. Maximal degree in co-relation 13589. Up to 1656 conditions per place. [2021-03-24 11:18:35,717 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 233 selfloop transitions, 68 changer transitions 29/340 dead transitions. [2021-03-24 11:18:35,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 340 transitions, 5905 flow [2021-03-24 11:18:35,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 11:18:35,718 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 11:18:35,719 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 11:18:35,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 11:18:35,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:35,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 11:18:35,720 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 11:18:35,722 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 11:18:35,722 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 11:18:35,722 INFO L185 Difference]: Start difference. First operand has 279 places, 308 transitions, 4818 flow. Second operand 18 states and 2473 transitions. [2021-03-24 11:18:35,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 340 transitions, 5905 flow [2021-03-24 11:18:35,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 340 transitions, 5763 flow, removed 11 selfloop flow, removed 13 redundant places. [2021-03-24 11:18:35,819 INFO L241 Difference]: Finished difference. Result has 283 places, 306 transitions, 4821 flow [2021-03-24 11:18:35,819 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4682, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4821, PETRI_PLACES=283, PETRI_TRANSITIONS=306} [2021-03-24 11:18:35,819 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 217 predicate places. [2021-03-24 11:18:35,819 INFO L480 AbstractCegarLoop]: Abstraction has has 283 places, 306 transitions, 4821 flow [2021-03-24 11:18:35,819 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 11:18:35,819 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:35,819 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 11:18:35,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-24 11:18:35,820 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 11:18:35,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:35,820 INFO L82 PathProgramCache]: Analyzing trace with hash -2048489775, now seen corresponding path program 61 times [2021-03-24 11:18:35,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:35,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505458407] [2021-03-24 11:18:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:35,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:35,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:35,881 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:35,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:35,901 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-03-24 11:18:35,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:18:35,927 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:18:35,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:18:35,966 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.3 percent of original size [2021-03-24 11:18:35,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:18:36,009 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.8 percent of original size [2021-03-24 11:18:36,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:18:36,048 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:18:36,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:36,078 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:18:36,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:36,105 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:18:36,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:36,142 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:18:36,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:36,180 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:36,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:36,213 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:36,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:36,250 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 11:18:36,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:18:36,298 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 11:18:36,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:18:36,314 INFO L142 QuantifierPusher]: treesize reduction 54, result has 58.5 percent of original size [2021-03-24 11:18:36,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 11:18:36,372 INFO L142 QuantifierPusher]: treesize reduction 54, result has 56.5 percent of original size [2021-03-24 11:18:36,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:18:36,428 INFO L142 QuantifierPusher]: treesize reduction 54, result has 63.8 percent of original size [2021-03-24 11:18:36,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 11:18:36,503 INFO L142 QuantifierPusher]: treesize reduction 29, result has 66.3 percent of original size [2021-03-24 11:18:36,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 11:18:36,546 INFO L142 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-03-24 11:18:36,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:18:36,567 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-24 11:18:36,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:18:36,610 INFO L142 QuantifierPusher]: treesize reduction 52, result has 43.5 percent of original size [2021-03-24 11:18:36,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:36,655 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.1 percent of original size [2021-03-24 11:18:36,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:36,694 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:36,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:36,718 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:36,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:36,719 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:36,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:36,742 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 11:18:36,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505458407] [2021-03-24 11:18:36,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:36,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:18:36,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135548116] [2021-03-24 11:18:36,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:18:36,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:36,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:18:36,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:18:36,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:18:36,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 306 transitions, 4821 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 11:18:36,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:36,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:18:36,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:37,540 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-24 11:18:37,740 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-24 11:18:38,028 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2021-03-24 11:18:39,276 INFO L129 PetriNetUnfolder]: 522/1999 cut-off events. [2021-03-24 11:18:39,276 INFO L130 PetriNetUnfolder]: For 25878/25893 co-relation queries the response was YES. [2021-03-24 11:18:39,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13246 conditions, 1999 events. 522/1999 cut-off events. For 25878/25893 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 18499 event pairs, 317 based on Foata normal form. 9/1979 useless extension candidates. Maximal degree in co-relation 13151. Up to 1560 conditions per place. [2021-03-24 11:18:39,293 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 213 selfloop transitions, 89 changer transitions 18/326 dead transitions. [2021-03-24 11:18:39,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 326 transitions, 5638 flow [2021-03-24 11:18:39,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:18:39,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:18:39,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1789 transitions. [2021-03-24 11:18:39,295 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32176258992805756 [2021-03-24 11:18:39,295 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1789 transitions. [2021-03-24 11:18:39,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1789 transitions. [2021-03-24 11:18:39,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:39,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1789 transitions. [2021-03-24 11:18:39,296 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 11:18:39,298 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 11:18:39,298 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 11:18:39,298 INFO L185 Difference]: Start difference. First operand has 283 places, 306 transitions, 4821 flow. Second operand 20 states and 1789 transitions. [2021-03-24 11:18:39,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 326 transitions, 5638 flow [2021-03-24 11:18:39,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 326 transitions, 5482 flow, removed 16 selfloop flow, removed 13 redundant places. [2021-03-24 11:18:39,385 INFO L241 Difference]: Finished difference. Result has 285 places, 298 transitions, 4683 flow [2021-03-24 11:18:39,385 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4667, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4683, PETRI_PLACES=285, PETRI_TRANSITIONS=298} [2021-03-24 11:18:39,385 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 219 predicate places. [2021-03-24 11:18:39,385 INFO L480 AbstractCegarLoop]: Abstraction has has 285 places, 298 transitions, 4683 flow [2021-03-24 11:18:39,386 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 11:18:39,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:39,386 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 11:18:39,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-24 11:18:39,386 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 11:18:39,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:39,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1136482289, now seen corresponding path program 62 times [2021-03-24 11:18:39,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:39,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299710469] [2021-03-24 11:18:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:39,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:39,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:39,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:39,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:39,447 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:39,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:39,467 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:18:39,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:39,491 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:18:39,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:39,529 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:18:39,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:18:39,571 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:18:39,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:39,589 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:18:39,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:39,608 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-03-24 11:18:39,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:18:39,645 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-03-24 11:18:39,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:18:39,684 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:18:39,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:39,719 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:18:39,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:39,756 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:18:39,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:18:39,799 INFO L142 QuantifierPusher]: treesize reduction 71, result has 43.2 percent of original size [2021-03-24 11:18:39,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:18:39,845 INFO L142 QuantifierPusher]: treesize reduction 71, result has 40.8 percent of original size [2021-03-24 11:18:39,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:18:39,864 INFO L142 QuantifierPusher]: treesize reduction 71, result has 37.7 percent of original size [2021-03-24 11:18:39,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:39,907 INFO L142 QuantifierPusher]: treesize reduction 72, result has 44.6 percent of original size [2021-03-24 11:18:39,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:18:39,960 INFO L142 QuantifierPusher]: treesize reduction 69, result has 45.7 percent of original size [2021-03-24 11:18:39,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:18:40,014 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:18:40,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:40,041 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:18:40,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:40,063 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:40,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:40,064 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:18:40,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:40,103 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:40,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:40,130 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:40,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:40,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:40,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:40,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299710469] [2021-03-24 11:18:40,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:40,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:40,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021011627] [2021-03-24 11:18:40,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:40,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:40,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:40,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:40,181 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:40,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 298 transitions, 4683 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 11:18:40,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:40,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:40,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:40,835 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-24 11:18:40,997 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2021-03-24 11:18:41,203 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 11:18:41,508 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 11:18:42,614 INFO L129 PetriNetUnfolder]: 543/2059 cut-off events. [2021-03-24 11:18:42,614 INFO L130 PetriNetUnfolder]: For 26093/26108 co-relation queries the response was YES. [2021-03-24 11:18:42,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13482 conditions, 2059 events. 543/2059 cut-off events. For 26093/26108 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 19102 event pairs, 316 based on Foata normal form. 10/2041 useless extension candidates. Maximal degree in co-relation 13390. Up to 1613 conditions per place. [2021-03-24 11:18:42,633 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 233 selfloop transitions, 77 changer transitions 19/339 dead transitions. [2021-03-24 11:18:42,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 339 transitions, 5918 flow [2021-03-24 11:18:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:42,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:42,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2477 transitions. [2021-03-24 11:18:42,636 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49500399680255797 [2021-03-24 11:18:42,636 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2477 transitions. [2021-03-24 11:18:42,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2477 transitions. [2021-03-24 11:18:42,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:42,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2477 transitions. [2021-03-24 11:18:42,637 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 11:18:42,639 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 11:18:42,639 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 11:18:42,639 INFO L185 Difference]: Start difference. First operand has 285 places, 298 transitions, 4683 flow. Second operand 18 states and 2477 transitions. [2021-03-24 11:18:42,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 339 transitions, 5918 flow [2021-03-24 11:18:42,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 339 transitions, 5671 flow, removed 22 selfloop flow, removed 21 redundant places. [2021-03-24 11:18:42,777 INFO L241 Difference]: Finished difference. Result has 282 places, 308 transitions, 4839 flow [2021-03-24 11:18:42,777 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4464, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4839, PETRI_PLACES=282, PETRI_TRANSITIONS=308} [2021-03-24 11:18:42,777 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 216 predicate places. [2021-03-24 11:18:42,777 INFO L480 AbstractCegarLoop]: Abstraction has has 282 places, 308 transitions, 4839 flow [2021-03-24 11:18:42,778 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 11:18:42,778 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:42,778 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 11:18:42,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-24 11:18:42,778 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 11:18:42,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:42,778 INFO L82 PathProgramCache]: Analyzing trace with hash 329358305, now seen corresponding path program 63 times [2021-03-24 11:18:42,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:42,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817022061] [2021-03-24 11:18:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:42,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:42,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:42,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:42,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:42,842 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:42,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:42,861 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:18:42,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:42,885 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:18:42,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:42,923 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:18:42,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:18:42,965 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:18:42,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:42,982 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:18:42,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:43,000 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:18:43,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:43,033 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:18:43,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:43,067 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:18:43,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:43,098 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:18:43,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:43,130 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:18:43,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:43,167 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:18:43,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:43,182 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 11:18:43,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:18:43,208 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 11:18:43,208 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:18:43,253 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:18:43,253 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:18:43,297 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:18:43,298 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:18:43,342 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:18:43,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:43,369 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:18:43,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:43,390 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:43,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:43,391 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:18:43,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:43,429 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:43,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:43,457 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:43,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:43,482 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:43,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:43,505 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 11:18:43,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817022061] [2021-03-24 11:18:43,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:43,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:43,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302539792] [2021-03-24 11:18:43,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:43,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:43,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:43,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:43,507 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:43,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 308 transitions, 4839 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 11:18:43,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:43,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:43,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:44,276 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-03-24 11:18:44,500 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-03-24 11:18:44,756 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-03-24 11:18:44,977 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-03-24 11:18:45,849 INFO L129 PetriNetUnfolder]: 534/2035 cut-off events. [2021-03-24 11:18:45,850 INFO L130 PetriNetUnfolder]: For 25039/25054 co-relation queries the response was YES. [2021-03-24 11:18:45,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13232 conditions, 2035 events. 534/2035 cut-off events. For 25039/25054 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 18836 event pairs, 327 based on Foata normal form. 9/2018 useless extension candidates. Maximal degree in co-relation 13139. Up to 1584 conditions per place. [2021-03-24 11:18:45,867 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 221 selfloop transitions, 69 changer transitions 31/331 dead transitions. [2021-03-24 11:18:45,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 331 transitions, 5748 flow [2021-03-24 11:18:45,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 11:18:45,869 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 11:18:45,869 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 11:18:45,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 11:18:45,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:45,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 11:18:45,871 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 11:18:45,873 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 11:18:45,873 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 11:18:45,873 INFO L185 Difference]: Start difference. First operand has 282 places, 308 transitions, 4839 flow. Second operand 18 states and 2472 transitions. [2021-03-24 11:18:45,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 331 transitions, 5748 flow [2021-03-24 11:18:45,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 331 transitions, 5570 flow, removed 13 selfloop flow, removed 13 redundant places. [2021-03-24 11:18:45,958 INFO L241 Difference]: Finished difference. Result has 287 places, 296 transitions, 4612 flow [2021-03-24 11:18:45,958 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4668, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4612, PETRI_PLACES=287, PETRI_TRANSITIONS=296} [2021-03-24 11:18:45,958 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 221 predicate places. [2021-03-24 11:18:45,958 INFO L480 AbstractCegarLoop]: Abstraction has has 287 places, 296 transitions, 4612 flow [2021-03-24 11:18:45,959 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 11:18:45,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:45,959 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 11:18:45,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-24 11:18:45,959 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 11:18:45,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:45,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1303666067, now seen corresponding path program 64 times [2021-03-24 11:18:45,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:45,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803541809] [2021-03-24 11:18:45,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:46,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:46,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:46,022 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:46,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:46,042 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:18:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:46,072 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 11:18:46,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:18:46,115 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.7 percent of original size [2021-03-24 11:18:46,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:18:46,161 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:18:46,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:46,190 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:18:46,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:46,218 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:18:46,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:46,257 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:18:46,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:46,295 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:46,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:46,330 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:46,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:46,367 INFO L142 QuantifierPusher]: treesize reduction 31, result has 62.2 percent of original size [2021-03-24 11:18:46,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:18:46,410 INFO L142 QuantifierPusher]: treesize reduction 54, result has 60.0 percent of original size [2021-03-24 11:18:46,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 11:18:46,472 INFO L142 QuantifierPusher]: treesize reduction 54, result has 58.5 percent of original size [2021-03-24 11:18:46,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 11:18:46,492 INFO L142 QuantifierPusher]: treesize reduction 59, result has 54.3 percent of original size [2021-03-24 11:18:46,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:18:46,549 INFO L142 QuantifierPusher]: treesize reduction 59, result has 53.9 percent of original size [2021-03-24 11:18:46,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:18:46,608 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.7 percent of original size [2021-03-24 11:18:46,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 11:18:46,686 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:18:46,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:46,727 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:18:46,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:46,750 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:18:46,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:46,787 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:18:46,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:46,828 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,852 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,853 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:46,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:46,875 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 11:18:46,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803541809] [2021-03-24 11:18:46,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:46,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:46,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166193880] [2021-03-24 11:18:46,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:46,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:46,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:46,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:46,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:46,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 296 transitions, 4612 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 11:18:46,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:46,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:46,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:47,515 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-03-24 11:18:47,678 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-03-24 11:18:47,879 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-03-24 11:18:48,178 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-03-24 11:18:48,383 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-03-24 11:18:49,276 INFO L129 PetriNetUnfolder]: 508/1958 cut-off events. [2021-03-24 11:18:49,276 INFO L130 PetriNetUnfolder]: For 24743/24758 co-relation queries the response was YES. [2021-03-24 11:18:49,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12820 conditions, 1958 events. 508/1958 cut-off events. For 24743/24758 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 18054 event pairs, 316 based on Foata normal form. 9/1940 useless extension candidates. Maximal degree in co-relation 12725. Up to 1571 conditions per place. [2021-03-24 11:18:49,294 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 221 selfloop transitions, 64 changer transitions 19/314 dead transitions. [2021-03-24 11:18:49,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 314 transitions, 5395 flow [2021-03-24 11:18:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 11:18:49,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 11:18:49,296 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 11:18:49,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 11:18:49,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:49,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 11:18:49,298 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 11:18:49,299 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 11:18:49,300 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 11:18:49,300 INFO L185 Difference]: Start difference. First operand has 287 places, 296 transitions, 4612 flow. Second operand 18 states and 2470 transitions. [2021-03-24 11:18:49,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 314 transitions, 5395 flow [2021-03-24 11:18:49,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 314 transitions, 5226 flow, removed 19 selfloop flow, removed 13 redundant places. [2021-03-24 11:18:49,388 INFO L241 Difference]: Finished difference. Result has 289 places, 291 transitions, 4486 flow [2021-03-24 11:18:49,388 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4449, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4486, PETRI_PLACES=289, PETRI_TRANSITIONS=291} [2021-03-24 11:18:49,388 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 223 predicate places. [2021-03-24 11:18:49,388 INFO L480 AbstractCegarLoop]: Abstraction has has 289 places, 291 transitions, 4486 flow [2021-03-24 11:18:49,388 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 11:18:49,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:49,388 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 11:18:49,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-24 11:18:49,388 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 11:18:49,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:49,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1179883045, now seen corresponding path program 65 times [2021-03-24 11:18:49,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:49,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982290669] [2021-03-24 11:18:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:49,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:49,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:49,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:49,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:49,449 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:49,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:49,469 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:18:49,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:49,492 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:18:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:49,529 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:18:49,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:18:49,571 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:18:49,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:49,589 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:18:49,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:49,607 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:18:49,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:49,641 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:18:49,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:49,671 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:18:49,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:49,703 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:18:49,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:49,735 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:18:49,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:49,772 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:18:49,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:49,787 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:18:49,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:49,821 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:18:49,821 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 11:18:49,864 INFO L142 QuantifierPusher]: treesize reduction 38, result has 59.1 percent of original size [2021-03-24 11:18:49,864 INFO L147 QuantifierPusher]: treesize reduction 7, result has 87.3 percent of original size 48 [2021-03-24 11:18:49,914 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:18:49,915 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:18:49,960 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:18:49,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:49,988 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:18:49,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:50,009 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:50,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:50,010 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:18:50,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:50,049 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:50,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:50,076 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:50,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:50,101 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:50,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:50,125 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 11:18:50,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982290669] [2021-03-24 11:18:50,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:50,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:50,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299628206] [2021-03-24 11:18:50,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:50,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:50,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:50,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:50,127 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:50,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 291 transitions, 4486 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 11:18:50,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:50,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:50,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:50,883 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2021-03-24 11:18:51,129 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-03-24 11:18:51,330 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2021-03-24 11:18:52,433 INFO L129 PetriNetUnfolder]: 523/2010 cut-off events. [2021-03-24 11:18:52,433 INFO L130 PetriNetUnfolder]: For 24663/24678 co-relation queries the response was YES. [2021-03-24 11:18:52,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13053 conditions, 2010 events. 523/2010 cut-off events. For 24663/24678 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 18706 event pairs, 307 based on Foata normal form. 10/1994 useless extension candidates. Maximal degree in co-relation 12958. Up to 1548 conditions per place. [2021-03-24 11:18:52,452 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 215 selfloop transitions, 84 changer transitions 19/328 dead transitions. [2021-03-24 11:18:52,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 328 transitions, 5626 flow [2021-03-24 11:18:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2475 transitions. [2021-03-24 11:18:52,454 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49460431654676257 [2021-03-24 11:18:52,454 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2475 transitions. [2021-03-24 11:18:52,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2475 transitions. [2021-03-24 11:18:52,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:52,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2475 transitions. [2021-03-24 11:18:52,456 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 11:18:52,458 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 11:18:52,458 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 11:18:52,458 INFO L185 Difference]: Start difference. First operand has 289 places, 291 transitions, 4486 flow. Second operand 18 states and 2475 transitions. [2021-03-24 11:18:52,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 328 transitions, 5626 flow [2021-03-24 11:18:52,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 328 transitions, 5479 flow, removed 6 selfloop flow, removed 16 redundant places. [2021-03-24 11:18:52,545 INFO L241 Difference]: Finished difference. Result has 288 places, 298 transitions, 4701 flow [2021-03-24 11:18:52,545 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4347, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4701, PETRI_PLACES=288, PETRI_TRANSITIONS=298} [2021-03-24 11:18:52,545 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 222 predicate places. [2021-03-24 11:18:52,545 INFO L480 AbstractCegarLoop]: Abstraction has has 288 places, 298 transitions, 4701 flow [2021-03-24 11:18:52,545 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 11:18:52,545 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:52,545 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 11:18:52,545 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-24 11:18:52,545 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 11:18:52,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:52,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1020272519, now seen corresponding path program 66 times [2021-03-24 11:18:52,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:52,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762739960] [2021-03-24 11:18:52,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:52,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:52,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:52,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:52,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:52,603 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:52,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:52,622 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-03-24 11:18:52,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:52,654 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 11:18:52,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:18:52,697 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-03-24 11:18:52,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:18:52,747 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:18:52,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:52,765 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:52,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:52,783 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:18:52,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:52,804 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:18:52,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:52,827 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:18:52,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:52,847 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:18:52,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:52,869 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 11:18:52,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:52,892 INFO L142 QuantifierPusher]: treesize reduction 42, result has 47.5 percent of original size [2021-03-24 11:18:52,892 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:18:52,927 INFO L142 QuantifierPusher]: treesize reduction 42, result has 44.0 percent of original size [2021-03-24 11:18:52,928 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size 30 [2021-03-24 11:18:52,943 INFO L142 QuantifierPusher]: treesize reduction 44, result has 38.0 percent of original size [2021-03-24 11:18:52,943 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 11:18:52,976 INFO L142 QuantifierPusher]: treesize reduction 42, result has 47.5 percent of original size [2021-03-24 11:18:52,977 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:18:53,015 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:18:53,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:53,040 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:53,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:53,058 INFO L142 QuantifierPusher]: treesize reduction 16, result has 52.9 percent of original size [2021-03-24 11:18:53,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:53,081 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:53,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:53,106 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:53,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:53,133 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:53,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:53,134 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:53,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:53,159 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:53,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:53,182 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 11:18:53,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762739960] [2021-03-24 11:18:53,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:53,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:53,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013105521] [2021-03-24 11:18:53,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:53,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:53,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:53,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:53,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:53,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 298 transitions, 4701 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 11:18:53,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:53,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:53,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:53,960 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-03-24 11:18:54,142 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 11:18:54,428 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-03-24 11:18:55,566 INFO L129 PetriNetUnfolder]: 513/1987 cut-off events. [2021-03-24 11:18:55,567 INFO L130 PetriNetUnfolder]: For 24455/24470 co-relation queries the response was YES. [2021-03-24 11:18:55,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12940 conditions, 1987 events. 513/1987 cut-off events. For 24455/24470 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 18437 event pairs, 311 based on Foata normal form. 9/1968 useless extension candidates. Maximal degree in co-relation 12844. Up to 1575 conditions per place. [2021-03-24 11:18:55,585 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 229 selfloop transitions, 79 changer transitions 9/327 dead transitions. [2021-03-24 11:18:55,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 327 transitions, 5704 flow [2021-03-24 11:18:55,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:18:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:18:55,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2608 transitions. [2021-03-24 11:18:55,587 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4937523665278304 [2021-03-24 11:18:55,587 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2608 transitions. [2021-03-24 11:18:55,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2608 transitions. [2021-03-24 11:18:55,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:55,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2608 transitions. [2021-03-24 11:18:55,588 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 11:18:55,590 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 11:18:55,590 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 11:18:55,590 INFO L185 Difference]: Start difference. First operand has 288 places, 298 transitions, 4701 flow. Second operand 19 states and 2608 transitions. [2021-03-24 11:18:55,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 327 transitions, 5704 flow [2021-03-24 11:18:55,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 327 transitions, 5510 flow, removed 21 selfloop flow, removed 14 redundant places. [2021-03-24 11:18:55,679 INFO L241 Difference]: Finished difference. Result has 294 places, 306 transitions, 4834 flow [2021-03-24 11:18:55,679 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4509, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4834, PETRI_PLACES=294, PETRI_TRANSITIONS=306} [2021-03-24 11:18:55,679 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 228 predicate places. [2021-03-24 11:18:55,680 INFO L480 AbstractCegarLoop]: Abstraction has has 294 places, 306 transitions, 4834 flow [2021-03-24 11:18:55,680 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 11:18:55,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:55,680 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 11:18:55,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-24 11:18:55,680 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 11:18:55,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:55,680 INFO L82 PathProgramCache]: Analyzing trace with hash 11160521, now seen corresponding path program 67 times [2021-03-24 11:18:55,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:55,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547485677] [2021-03-24 11:18:55,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:55,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:55,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:55,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:55,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:55,737 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:55,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:55,755 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:18:55,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:55,783 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:18:55,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:55,834 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:18:55,835 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:18:55,900 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:18:55,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:55,924 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:18:55,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:55,948 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:55,949 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:55,992 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:55,993 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:56,041 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:56,041 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:56,084 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:56,085 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:56,127 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:18:56,127 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:18:56,178 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:56,178 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:18:56,199 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:18:56,200 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:18:56,248 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:18:56,249 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:18:56,301 INFO L142 QuantifierPusher]: treesize reduction 41, result has 46.1 percent of original size [2021-03-24 11:18:56,302 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size 28 [2021-03-24 11:18:56,357 INFO L142 QuantifierPusher]: treesize reduction 39, result has 54.1 percent of original size [2021-03-24 11:18:56,358 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:18:56,423 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:18:56,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:56,460 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:56,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:56,487 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:18:56,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:56,521 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:56,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:56,558 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:56,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:56,592 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:56,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:56,593 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:56,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:56,624 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 11:18:56,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547485677] [2021-03-24 11:18:56,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:56,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:56,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801822720] [2021-03-24 11:18:56,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:56,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:56,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:56,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:56,627 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:56,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 306 transitions, 4834 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 11:18:56,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:56,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:56,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:57,543 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-03-24 11:18:57,794 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-03-24 11:18:57,981 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-03-24 11:18:58,201 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-03-24 11:18:59,013 INFO L129 PetriNetUnfolder]: 512/1985 cut-off events. [2021-03-24 11:18:59,013 INFO L130 PetriNetUnfolder]: For 26465/26480 co-relation queries the response was YES. [2021-03-24 11:18:59,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13227 conditions, 1985 events. 512/1985 cut-off events. For 26465/26480 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 18410 event pairs, 314 based on Foata normal form. 9/1967 useless extension candidates. Maximal degree in co-relation 13128. Up to 1577 conditions per place. [2021-03-24 11:18:59,032 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 230 selfloop transitions, 66 changer transitions 20/326 dead transitions. [2021-03-24 11:18:59,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 326 transitions, 5701 flow [2021-03-24 11:18:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 11:18:59,034 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 11:18:59,034 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 11:18:59,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 11:18:59,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:59,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 11:18:59,036 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 11:18:59,038 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 11:18:59,038 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 11:18:59,038 INFO L185 Difference]: Start difference. First operand has 294 places, 306 transitions, 4834 flow. Second operand 18 states and 2468 transitions. [2021-03-24 11:18:59,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 326 transitions, 5701 flow [2021-03-24 11:18:59,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 326 transitions, 5499 flow, removed 33 selfloop flow, removed 13 redundant places. [2021-03-24 11:18:59,168 INFO L241 Difference]: Finished difference. Result has 299 places, 302 transitions, 4703 flow [2021-03-24 11:18:59,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4634, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4703, PETRI_PLACES=299, PETRI_TRANSITIONS=302} [2021-03-24 11:18:59,168 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 233 predicate places. [2021-03-24 11:18:59,168 INFO L480 AbstractCegarLoop]: Abstraction has has 299 places, 302 transitions, 4703 flow [2021-03-24 11:18:59,169 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 11:18:59,169 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:59,169 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 11:18:59,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-24 11:18:59,169 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 11:18:59,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:59,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1350654391, now seen corresponding path program 68 times [2021-03-24 11:18:59,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:59,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528401332] [2021-03-24 11:18:59,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:59,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:59,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:59,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:59,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:59,225 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:59,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:59,256 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:18:59,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:59,296 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:18:59,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:18:59,345 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:18:59,345 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:18:59,394 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:18:59,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:59,412 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:18:59,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:59,430 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:59,430 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:59,462 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:59,463 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:18:59,497 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:59,498 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:59,529 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:18:59,529 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:18:59,560 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:18:59,561 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:18:59,594 INFO L142 QuantifierPusher]: treesize reduction 42, result has 47.5 percent of original size [2021-03-24 11:18:59,594 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:18:59,630 INFO L142 QuantifierPusher]: treesize reduction 42, result has 44.0 percent of original size [2021-03-24 11:18:59,630 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size 30 [2021-03-24 11:18:59,645 INFO L142 QuantifierPusher]: treesize reduction 44, result has 38.0 percent of original size [2021-03-24 11:18:59,645 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 11:18:59,679 INFO L142 QuantifierPusher]: treesize reduction 42, result has 47.5 percent of original size [2021-03-24 11:18:59,679 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:18:59,717 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:18:59,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:59,742 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:18:59,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:59,759 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:18:59,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:59,782 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:18:59,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:59,806 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:59,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:59,833 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:59,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:59,858 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:59,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:59,858 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:59,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:59,882 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 11:18:59,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528401332] [2021-03-24 11:18:59,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:59,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:18:59,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284109714] [2021-03-24 11:18:59,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:18:59,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:59,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:18:59,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:18:59,884 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:18:59,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 302 transitions, 4703 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 11:18:59,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:59,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:18:59,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:00,655 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-03-24 11:19:00,838 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 11:19:01,115 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-03-24 11:19:02,275 INFO L129 PetriNetUnfolder]: 498/1944 cut-off events. [2021-03-24 11:19:02,275 INFO L130 PetriNetUnfolder]: For 26609/26624 co-relation queries the response was YES. [2021-03-24 11:19:02,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12971 conditions, 1944 events. 498/1944 cut-off events. For 26609/26624 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 17974 event pairs, 306 based on Foata normal form. 9/1928 useless extension candidates. Maximal degree in co-relation 12870. Up to 1539 conditions per place. [2021-03-24 11:19:02,294 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 222 selfloop transitions, 74 changer transitions 15/321 dead transitions. [2021-03-24 11:19:02,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 321 transitions, 5517 flow [2021-03-24 11:19:02,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:19:02,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:19:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2743 transitions. [2021-03-24 11:19:02,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4933453237410072 [2021-03-24 11:19:02,296 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2743 transitions. [2021-03-24 11:19:02,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2743 transitions. [2021-03-24 11:19:02,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:02,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2743 transitions. [2021-03-24 11:19:02,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 137.15) internal successors, (2743), 20 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:02,300 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 11:19:02,300 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 11:19:02,300 INFO L185 Difference]: Start difference. First operand has 299 places, 302 transitions, 4703 flow. Second operand 20 states and 2743 transitions. [2021-03-24 11:19:02,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 321 transitions, 5517 flow [2021-03-24 11:19:02,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 321 transitions, 5358 flow, removed 7 selfloop flow, removed 17 redundant places. [2021-03-24 11:19:02,397 INFO L241 Difference]: Finished difference. Result has 294 places, 295 transitions, 4564 flow [2021-03-24 11:19:02,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4546, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4564, PETRI_PLACES=294, PETRI_TRANSITIONS=295} [2021-03-24 11:19:02,397 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 228 predicate places. [2021-03-24 11:19:02,397 INFO L480 AbstractCegarLoop]: Abstraction has has 294 places, 295 transitions, 4564 flow [2021-03-24 11:19:02,398 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 11:19:02,398 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:02,398 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 11:19:02,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-24 11:19:02,398 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 11:19:02,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:02,398 INFO L82 PathProgramCache]: Analyzing trace with hash 314530153, now seen corresponding path program 69 times [2021-03-24 11:19:02,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:02,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877789552] [2021-03-24 11:19:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:02,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:02,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:02,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:02,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:02,463 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:02,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:02,483 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:19:02,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:02,512 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 11:19:02,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:19:02,554 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.7 percent of original size [2021-03-24 11:19:02,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:19:02,600 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:19:02,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:02,629 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:19:02,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:02,657 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:19:02,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:19:02,695 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:19:02,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:19:02,734 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:19:02,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:02,769 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:19:02,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:02,807 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 11:19:02,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:19:02,855 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 11:19:02,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:02,872 INFO L142 QuantifierPusher]: treesize reduction 39, result has 59.8 percent of original size [2021-03-24 11:19:02,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:19:02,919 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.2 percent of original size [2021-03-24 11:19:02,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:19:02,966 INFO L142 QuantifierPusher]: treesize reduction 59, result has 53.9 percent of original size [2021-03-24 11:19:02,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:19:03,026 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.7 percent of original size [2021-03-24 11:19:03,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 11:19:03,094 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:19:03,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:03,137 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:19:03,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:03,161 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:19:03,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:03,224 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:19:03,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:03,267 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:03,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:03,292 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:03,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:03,293 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:03,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:03,316 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 11:19:03,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877789552] [2021-03-24 11:19:03,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:03,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:03,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761627705] [2021-03-24 11:19:03,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:03,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:03,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:03,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:03,319 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:03,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 295 transitions, 4564 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 11:19:03,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:03,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:03,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:03,967 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-03-24 11:19:04,127 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-24 11:19:04,390 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-03-24 11:19:04,669 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-03-24 11:19:04,901 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-03-24 11:19:05,734 INFO L129 PetriNetUnfolder]: 493/1904 cut-off events. [2021-03-24 11:19:05,734 INFO L130 PetriNetUnfolder]: For 24868/24883 co-relation queries the response was YES. [2021-03-24 11:19:05,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12592 conditions, 1904 events. 493/1904 cut-off events. For 24868/24883 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 17430 event pairs, 300 based on Foata normal form. 9/1888 useless extension candidates. Maximal degree in co-relation 12494. Up to 1485 conditions per place. [2021-03-24 11:19:05,752 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 215 selfloop transitions, 60 changer transitions 28/313 dead transitions. [2021-03-24 11:19:05,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 313 transitions, 5368 flow [2021-03-24 11:19:05,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:05,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 11:19:05,754 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 11:19:05,754 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 11:19:05,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 11:19:05,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:05,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 11:19:05,756 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 11:19:05,758 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 11:19:05,758 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 11:19:05,758 INFO L185 Difference]: Start difference. First operand has 294 places, 295 transitions, 4564 flow. Second operand 18 states and 2468 transitions. [2021-03-24 11:19:05,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 313 transitions, 5368 flow [2021-03-24 11:19:05,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 313 transitions, 5193 flow, removed 7 selfloop flow, removed 20 redundant places. [2021-03-24 11:19:05,851 INFO L241 Difference]: Finished difference. Result has 289 places, 281 transitions, 4284 flow [2021-03-24 11:19:05,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4393, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4284, PETRI_PLACES=289, PETRI_TRANSITIONS=281} [2021-03-24 11:19:05,851 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 223 predicate places. [2021-03-24 11:19:05,851 INFO L480 AbstractCegarLoop]: Abstraction has has 289 places, 281 transitions, 4284 flow [2021-03-24 11:19:05,852 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 11:19:05,852 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:05,852 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 11:19:05,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-24 11:19:05,852 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 11:19:05,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:05,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1742726815, now seen corresponding path program 70 times [2021-03-24 11:19:05,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:05,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493589983] [2021-03-24 11:19:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:05,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:05,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:05,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:05,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:05,914 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:05,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:05,934 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:19:05,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:05,958 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:19:05,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:05,997 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:19:05,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:19:06,040 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:19:06,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:06,058 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:19:06,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:06,076 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:19:06,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:06,109 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:19:06,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:06,144 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:19:06,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:06,176 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:19:06,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:06,208 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:19:06,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:06,245 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:19:06,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:06,260 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:19:06,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:06,295 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:19:06,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:19:06,337 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-03-24 11:19:06,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:06,364 INFO L142 QuantifierPusher]: treesize reduction 30, result has 52.4 percent of original size [2021-03-24 11:19:06,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:19:06,390 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:19:06,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:06,417 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:19:06,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:06,438 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:19:06,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:06,439 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:19:06,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:06,480 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:06,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:06,507 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:06,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:06,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:06,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:06,557 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 11:19:06,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493589983] [2021-03-24 11:19:06,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:06,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:06,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095531212] [2021-03-24 11:19:06,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:06,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:06,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:06,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:06,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:06,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 281 transitions, 4284 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 11:19:06,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:06,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:06,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:07,336 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2021-03-24 11:19:07,613 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-03-24 11:19:08,840 INFO L129 PetriNetUnfolder]: 472/1838 cut-off events. [2021-03-24 11:19:08,840 INFO L130 PetriNetUnfolder]: For 23368/23381 co-relation queries the response was YES. [2021-03-24 11:19:08,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12057 conditions, 1838 events. 472/1838 cut-off events. For 23368/23381 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 16737 event pairs, 274 based on Foata normal form. 9/1824 useless extension candidates. Maximal degree in co-relation 11960. Up to 1388 conditions per place. [2021-03-24 11:19:08,859 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 199 selfloop transitions, 91 changer transitions 19/319 dead transitions. [2021-03-24 11:19:08,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 319 transitions, 5390 flow [2021-03-24 11:19:08,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:08,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:08,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2480 transitions. [2021-03-24 11:19:08,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.495603517186251 [2021-03-24 11:19:08,861 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2480 transitions. [2021-03-24 11:19:08,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2480 transitions. [2021-03-24 11:19:08,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:08,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2480 transitions. [2021-03-24 11:19:08,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.77777777777777) internal successors, (2480), 18 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:08,865 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 11:19:08,865 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 11:19:08,865 INFO L185 Difference]: Start difference. First operand has 289 places, 281 transitions, 4284 flow. Second operand 18 states and 2480 transitions. [2021-03-24 11:19:08,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 319 transitions, 5390 flow [2021-03-24 11:19:08,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 319 transitions, 5190 flow, removed 28 selfloop flow, removed 19 redundant places. [2021-03-24 11:19:08,954 INFO L241 Difference]: Finished difference. Result has 279 places, 283 transitions, 4359 flow [2021-03-24 11:19:08,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4116, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4359, PETRI_PLACES=279, PETRI_TRANSITIONS=283} [2021-03-24 11:19:08,954 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 213 predicate places. [2021-03-24 11:19:08,954 INFO L480 AbstractCegarLoop]: Abstraction has has 279 places, 283 transitions, 4359 flow [2021-03-24 11:19:08,955 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 11:19:08,955 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:08,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:08,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-24 11:19:08,955 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 11:19:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:08,955 INFO L82 PathProgramCache]: Analyzing trace with hash 870891125, now seen corresponding path program 71 times [2021-03-24 11:19:08,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:08,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834921814] [2021-03-24 11:19:08,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:09,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:09,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:09,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:09,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:09,013 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:09,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:09,031 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.2 percent of original size [2021-03-24 11:19:09,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:09,059 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 11:19:09,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:19:09,098 INFO L142 QuantifierPusher]: treesize reduction 23, result has 75.0 percent of original size [2021-03-24 11:19:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 11:19:09,150 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:19:09,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:09,166 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:09,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:09,182 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:19:09,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:09,201 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:19:09,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:09,220 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:19:09,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:09,238 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:19:09,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:09,258 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:19:09,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:19:09,283 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:09,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:09,298 INFO L142 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-03-24 11:19:09,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:09,323 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:09,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:09,350 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:09,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:09,374 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:19:09,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:09,400 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:19:09,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:09,418 INFO L142 QuantifierPusher]: treesize reduction 16, result has 52.9 percent of original size [2021-03-24 11:19:09,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:19:09,442 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:19:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:09,468 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:09,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:09,496 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:09,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:09,497 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:09,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:09,522 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:09,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:09,547 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 11:19:09,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834921814] [2021-03-24 11:19:09,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:09,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:09,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628619201] [2021-03-24 11:19:09,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:09,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:09,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:09,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:09,549 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:09,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 283 transitions, 4359 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 11:19:09,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:09,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:09,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:10,295 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-03-24 11:19:10,519 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-24 11:19:11,774 INFO L129 PetriNetUnfolder]: 460/1808 cut-off events. [2021-03-24 11:19:11,774 INFO L130 PetriNetUnfolder]: For 21775/21790 co-relation queries the response was YES. [2021-03-24 11:19:11,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11706 conditions, 1808 events. 460/1808 cut-off events. For 21775/21790 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 16452 event pairs, 271 based on Foata normal form. 10/1797 useless extension candidates. Maximal degree in co-relation 11614. Up to 1392 conditions per place. [2021-03-24 11:19:11,787 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 200 selfloop transitions, 96 changer transitions 9/315 dead transitions. [2021-03-24 11:19:11,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 315 transitions, 5392 flow [2021-03-24 11:19:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:19:11,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:19:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2612 transitions. [2021-03-24 11:19:11,789 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4945096554335479 [2021-03-24 11:19:11,789 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2612 transitions. [2021-03-24 11:19:11,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2612 transitions. [2021-03-24 11:19:11,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:11,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2612 transitions. [2021-03-24 11:19:11,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.47368421052633) internal successors, (2612), 19 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:11,792 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 11:19:11,792 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 11:19:11,792 INFO L185 Difference]: Start difference. First operand has 279 places, 283 transitions, 4359 flow. Second operand 19 states and 2612 transitions. [2021-03-24 11:19:11,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 315 transitions, 5392 flow [2021-03-24 11:19:11,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 315 transitions, 5164 flow, removed 32 selfloop flow, removed 14 redundant places. [2021-03-24 11:19:11,868 INFO L241 Difference]: Finished difference. Result has 285 places, 289 transitions, 4478 flow [2021-03-24 11:19:11,868 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4147, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4478, PETRI_PLACES=285, PETRI_TRANSITIONS=289} [2021-03-24 11:19:11,868 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 219 predicate places. [2021-03-24 11:19:11,868 INFO L480 AbstractCegarLoop]: Abstraction has has 285 places, 289 transitions, 4478 flow [2021-03-24 11:19:11,868 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 11:19:11,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:11,868 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 11:19:11,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-24 11:19:11,869 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 11:19:11,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:11,869 INFO L82 PathProgramCache]: Analyzing trace with hash 231498499, now seen corresponding path program 72 times [2021-03-24 11:19:11,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:11,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102358563] [2021-03-24 11:19:11,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:11,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:11,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:11,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:11,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:11,930 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:11,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:11,953 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-24 11:19:11,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:11,975 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.3 percent of original size [2021-03-24 11:19:11,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:12,014 INFO L142 QuantifierPusher]: treesize reduction 29, result has 67.0 percent of original size [2021-03-24 11:19:12,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:12,055 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-24 11:19:12,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:19:12,078 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-03-24 11:19:12,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:12,097 INFO L142 QuantifierPusher]: treesize reduction 20, result has 60.8 percent of original size [2021-03-24 11:19:12,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:12,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 11:19:12,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:12,134 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 11:19:12,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:12,155 INFO L142 QuantifierPusher]: treesize reduction 27, result has 51.8 percent of original size [2021-03-24 11:19:12,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:12,176 INFO L142 QuantifierPusher]: treesize reduction 27, result has 51.8 percent of original size [2021-03-24 11:19:12,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:12,197 INFO L142 QuantifierPusher]: treesize reduction 29, result has 50.0 percent of original size [2021-03-24 11:19:12,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:12,218 INFO L142 QuantifierPusher]: treesize reduction 26, result has 51.9 percent of original size [2021-03-24 11:19:12,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:12,240 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size [2021-03-24 11:19:12,241 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.1 percent of original size 37 [2021-03-24 11:19:12,285 INFO L142 QuantifierPusher]: treesize reduction 40, result has 49.4 percent of original size [2021-03-24 11:19:12,285 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size 32 [2021-03-24 11:19:12,303 INFO L142 QuantifierPusher]: treesize reduction 45, result has 42.3 percent of original size [2021-03-24 11:19:12,303 INFO L147 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size 26 [2021-03-24 11:19:12,340 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size [2021-03-24 11:19:12,341 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.1 percent of original size 37 [2021-03-24 11:19:12,398 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:19:12,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:12,426 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:12,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:12,445 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:12,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:12,467 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:19:12,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:12,491 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:12,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:12,515 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:12,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:12,537 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:19:12,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:19:12,558 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 11:19:12,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102358563] [2021-03-24 11:19:12,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:12,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:19:12,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118006242] [2021-03-24 11:19:12,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:19:12,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:12,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:19:12,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:19:12,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:19:12,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 289 transitions, 4478 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 11:19:12,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:12,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:19:12,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:13,280 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 11:19:13,542 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-03-24 11:19:13,745 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 11:19:13,954 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 11:19:14,791 INFO L129 PetriNetUnfolder]: 457/1783 cut-off events. [2021-03-24 11:19:14,792 INFO L130 PetriNetUnfolder]: For 23170/23183 co-relation queries the response was YES. [2021-03-24 11:19:14,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11868 conditions, 1783 events. 457/1783 cut-off events. For 23170/23183 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 16104 event pairs, 272 based on Foata normal form. 8/1770 useless extension candidates. Maximal degree in co-relation 11773. Up to 1413 conditions per place. [2021-03-24 11:19:14,808 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 222 selfloop transitions, 59 changer transitions 29/316 dead transitions. [2021-03-24 11:19:14,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 316 transitions, 5400 flow [2021-03-24 11:19:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1612 transitions. [2021-03-24 11:19:14,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32214228617106316 [2021-03-24 11:19:14,810 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1612 transitions. [2021-03-24 11:19:14,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1612 transitions. [2021-03-24 11:19:14,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:14,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1612 transitions. [2021-03-24 11:19:14,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.55555555555556) internal successors, (1612), 18 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:14,813 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 11:19:14,813 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 11:19:14,813 INFO L185 Difference]: Start difference. First operand has 285 places, 289 transitions, 4478 flow. Second operand 18 states and 1612 transitions. [2021-03-24 11:19:14,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 316 transitions, 5400 flow [2021-03-24 11:19:14,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 316 transitions, 5147 flow, removed 36 selfloop flow, removed 13 redundant places. [2021-03-24 11:19:14,901 INFO L241 Difference]: Finished difference. Result has 293 places, 283 transitions, 4258 flow [2021-03-24 11:19:14,901 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4237, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4258, PETRI_PLACES=293, PETRI_TRANSITIONS=283} [2021-03-24 11:19:14,901 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 227 predicate places. [2021-03-24 11:19:14,901 INFO L480 AbstractCegarLoop]: Abstraction has has 293 places, 283 transitions, 4258 flow [2021-03-24 11:19:14,902 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 11:19:14,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:14,902 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 11:19:14,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-24 11:19:14,902 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 11:19:14,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:14,902 INFO L82 PathProgramCache]: Analyzing trace with hash -2011374411, now seen corresponding path program 73 times [2021-03-24 11:19:14,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:14,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860332745] [2021-03-24 11:19:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:14,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:14,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:14,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:14,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:14,963 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:14,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:14,983 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:19:14,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:15,008 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:19:15,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:15,045 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:19:15,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:19:15,088 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:19:15,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:15,106 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:19:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:15,124 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-03-24 11:19:15,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:19:15,161 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:19:15,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:15,196 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:19:15,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:15,231 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:19:15,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:15,268 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-24 11:19:15,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:19:15,308 INFO L142 QuantifierPusher]: treesize reduction 71, result has 43.2 percent of original size [2021-03-24 11:19:15,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:19:15,388 INFO L142 QuantifierPusher]: treesize reduction 71, result has 40.8 percent of original size [2021-03-24 11:19:15,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:19:15,408 INFO L142 QuantifierPusher]: treesize reduction 71, result has 37.7 percent of original size [2021-03-24 11:19:15,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:15,457 INFO L142 QuantifierPusher]: treesize reduction 68, result has 38.7 percent of original size [2021-03-24 11:19:15,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:15,508 INFO L142 QuantifierPusher]: treesize reduction 69, result has 45.7 percent of original size [2021-03-24 11:19:15,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:19:15,567 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:19:15,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:15,597 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:19:15,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:15,620 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:19:15,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:15,621 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:19:15,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:15,662 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:15,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:15,690 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:15,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:15,716 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:15,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:15,741 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 11:19:15,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860332745] [2021-03-24 11:19:15,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:15,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:15,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456636777] [2021-03-24 11:19:15,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:15,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:15,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:15,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:15,743 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:15,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 283 transitions, 4258 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 11:19:15,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:15,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:15,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:16,388 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-03-24 11:19:16,564 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-03-24 11:19:16,768 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-03-24 11:19:17,100 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-03-24 11:19:17,336 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-03-24 11:19:18,252 INFO L129 PetriNetUnfolder]: 454/1770 cut-off events. [2021-03-24 11:19:18,252 INFO L130 PetriNetUnfolder]: For 23700/23735 co-relation queries the response was YES. [2021-03-24 11:19:18,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11752 conditions, 1770 events. 454/1770 cut-off events. For 23700/23735 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 15999 event pairs, 273 based on Foata normal form. 14/1763 useless extension candidates. Maximal degree in co-relation 11652. Up to 1366 conditions per place. [2021-03-24 11:19:18,270 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 222 selfloop transitions, 64 changer transitions 20/316 dead transitions. [2021-03-24 11:19:18,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 316 transitions, 5268 flow [2021-03-24 11:19:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2021-03-24 11:19:18,272 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 11:19:18,272 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2466 transitions. [2021-03-24 11:19:18,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2466 transitions. [2021-03-24 11:19:18,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:18,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2466 transitions. [2021-03-24 11:19:18,274 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 11:19:18,276 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 11:19:18,276 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 11:19:18,276 INFO L185 Difference]: Start difference. First operand has 293 places, 283 transitions, 4258 flow. Second operand 18 states and 2466 transitions. [2021-03-24 11:19:18,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 316 transitions, 5268 flow [2021-03-24 11:19:18,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 316 transitions, 5114 flow, removed 12 selfloop flow, removed 18 redundant places. [2021-03-24 11:19:18,369 INFO L241 Difference]: Finished difference. Result has 290 places, 291 transitions, 4386 flow [2021-03-24 11:19:18,369 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4108, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4386, PETRI_PLACES=290, PETRI_TRANSITIONS=291} [2021-03-24 11:19:18,369 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 224 predicate places. [2021-03-24 11:19:18,369 INFO L480 AbstractCegarLoop]: Abstraction has has 290 places, 291 transitions, 4386 flow [2021-03-24 11:19:18,370 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 11:19:18,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:18,370 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 11:19:18,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-24 11:19:18,370 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 11:19:18,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:18,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1929193009, now seen corresponding path program 74 times [2021-03-24 11:19:18,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:18,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495021562] [2021-03-24 11:19:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:18,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:18,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:18,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:18,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:18,430 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:18,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:18,453 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:19:18,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:18,484 INFO L142 QuantifierPusher]: treesize reduction 34, result has 59.5 percent of original size [2021-03-24 11:19:18,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:18,528 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:19:18,528 INFO L147 QuantifierPusher]: treesize reduction 5, result has 92.8 percent of original size 64 [2021-03-24 11:19:18,579 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:19:18,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:18,598 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:19:18,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:18,618 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size [2021-03-24 11:19:18,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:18,640 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size [2021-03-24 11:19:18,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:18,665 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 11:19:18,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:18,688 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 11:19:18,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:18,712 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.0 percent of original size [2021-03-24 11:19:18,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:19:18,739 INFO L142 QuantifierPusher]: treesize reduction 21, result has 61.8 percent of original size [2021-03-24 11:19:18,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:18,755 INFO L142 QuantifierPusher]: treesize reduction 23, result has 54.9 percent of original size [2021-03-24 11:19:18,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:18,781 INFO L142 QuantifierPusher]: treesize reduction 50, result has 36.7 percent of original size [2021-03-24 11:19:18,781 INFO L147 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size 24 [2021-03-24 11:19:18,818 INFO L142 QuantifierPusher]: treesize reduction 48, result has 45.5 percent of original size [2021-03-24 11:19:18,818 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 11:19:18,860 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:19:18,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:18,887 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:19:18,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:18,907 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:19:18,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:19:18,932 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:19:18,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:18,960 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:19:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:18,990 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:19:18,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:18,991 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:19:18,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:19,017 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:19,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:19,044 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 11:19:19,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495021562] [2021-03-24 11:19:19,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:19,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:19,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449432304] [2021-03-24 11:19:19,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:19,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:19,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:19,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:19,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:19,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 291 transitions, 4386 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 11:19:19,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:19,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:19,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:19,882 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-03-24 11:19:20,157 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-03-24 11:19:20,398 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-03-24 11:19:21,532 INFO L129 PetriNetUnfolder]: 445/1741 cut-off events. [2021-03-24 11:19:21,533 INFO L130 PetriNetUnfolder]: For 23400/23409 co-relation queries the response was YES. [2021-03-24 11:19:21,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11614 conditions, 1741 events. 445/1741 cut-off events. For 23400/23409 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 15644 event pairs, 268 based on Foata normal form. 5/1729 useless extension candidates. Maximal degree in co-relation 11515. Up to 1378 conditions per place. [2021-03-24 11:19:21,548 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 220 selfloop transitions, 77 changer transitions 9/316 dead transitions. [2021-03-24 11:19:21,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 316 transitions, 5327 flow [2021-03-24 11:19:21,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:19:21,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:19:21,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2605 transitions. [2021-03-24 11:19:21,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49318439984854223 [2021-03-24 11:19:21,550 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2605 transitions. [2021-03-24 11:19:21,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2605 transitions. [2021-03-24 11:19:21,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:21,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2605 transitions. [2021-03-24 11:19:21,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.10526315789474) internal successors, (2605), 19 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:21,554 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 11:19:21,554 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 11:19:21,554 INFO L185 Difference]: Start difference. First operand has 290 places, 291 transitions, 4386 flow. Second operand 19 states and 2605 transitions. [2021-03-24 11:19:21,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 316 transitions, 5327 flow [2021-03-24 11:19:21,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 316 transitions, 5189 flow, removed 19 selfloop flow, removed 12 redundant places. [2021-03-24 11:19:21,639 INFO L241 Difference]: Finished difference. Result has 295 places, 296 transitions, 4526 flow [2021-03-24 11:19:21,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4252, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4526, PETRI_PLACES=295, PETRI_TRANSITIONS=296} [2021-03-24 11:19:21,639 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 229 predicate places. [2021-03-24 11:19:21,639 INFO L480 AbstractCegarLoop]: Abstraction has has 295 places, 296 transitions, 4526 flow [2021-03-24 11:19:21,639 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 11:19:21,639 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:21,639 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 11:19:21,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-24 11:19:21,639 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 11:19:21,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:21,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1447248733, now seen corresponding path program 75 times [2021-03-24 11:19:21,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:21,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730583020] [2021-03-24 11:19:21,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:21,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:21,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:21,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:21,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:21,715 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:21,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:21,748 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-03-24 11:19:21,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:19:21,773 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:21,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:21,812 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.3 percent of original size [2021-03-24 11:19:21,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:21,858 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.8 percent of original size [2021-03-24 11:19:21,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:19:21,900 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:19:21,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:21,934 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:19:21,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:21,969 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:19:21,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:19:22,017 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:19:22,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:19:22,062 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:19:22,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:22,104 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:19:22,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:22,145 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 11:19:22,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:19:22,198 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 11:19:22,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:22,216 INFO L142 QuantifierPusher]: treesize reduction 39, result has 57.6 percent of original size [2021-03-24 11:19:22,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:19:22,264 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.6 percent of original size [2021-03-24 11:19:22,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 11:19:22,324 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-24 11:19:22,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:19:22,367 INFO L142 QuantifierPusher]: treesize reduction 29, result has 66.3 percent of original size [2021-03-24 11:19:22,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 11:19:22,417 INFO L142 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-03-24 11:19:22,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:22,442 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-24 11:19:22,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:19:22,491 INFO L142 QuantifierPusher]: treesize reduction 52, result has 43.5 percent of original size [2021-03-24 11:19:22,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:22,540 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.1 percent of original size [2021-03-24 11:19:22,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:22,585 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:22,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:22,613 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:22,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:22,614 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:22,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:22,641 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 11:19:22,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730583020] [2021-03-24 11:19:22,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:22,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:19:22,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444875915] [2021-03-24 11:19:22,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:19:22,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:22,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:19:22,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:19:22,643 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:19:22,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 296 transitions, 4526 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 11:19:22,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:22,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:19:22,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:23,504 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-24 11:19:23,752 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-03-24 11:19:24,341 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-03-24 11:19:24,546 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2021-03-24 11:19:25,285 INFO L129 PetriNetUnfolder]: 441/1728 cut-off events. [2021-03-24 11:19:25,286 INFO L130 PetriNetUnfolder]: For 23729/23738 co-relation queries the response was YES. [2021-03-24 11:19:25,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11632 conditions, 1728 events. 441/1728 cut-off events. For 23729/23738 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15499 event pairs, 267 based on Foata normal form. 7/1718 useless extension candidates. Maximal degree in co-relation 11532. Up to 1344 conditions per place. [2021-03-24 11:19:25,302 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 209 selfloop transitions, 88 changer transitions 17/320 dead transitions. [2021-03-24 11:19:25,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 320 transitions, 5387 flow [2021-03-24 11:19:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:19:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:19:25,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1793 transitions. [2021-03-24 11:19:25,304 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3224820143884892 [2021-03-24 11:19:25,304 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1793 transitions. [2021-03-24 11:19:25,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1793 transitions. [2021-03-24 11:19:25,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:25,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1793 transitions. [2021-03-24 11:19:25,305 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 11:19:25,307 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 11:19:25,307 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 11:19:25,307 INFO L185 Difference]: Start difference. First operand has 295 places, 296 transitions, 4526 flow. Second operand 20 states and 1793 transitions. [2021-03-24 11:19:25,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 320 transitions, 5387 flow [2021-03-24 11:19:25,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 320 transitions, 5179 flow, removed 36 selfloop flow, removed 13 redundant places. [2021-03-24 11:19:25,396 INFO L241 Difference]: Finished difference. Result has 300 places, 289 transitions, 4391 flow [2021-03-24 11:19:25,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4320, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4391, PETRI_PLACES=300, PETRI_TRANSITIONS=289} [2021-03-24 11:19:25,397 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 234 predicate places. [2021-03-24 11:19:25,397 INFO L480 AbstractCegarLoop]: Abstraction has has 300 places, 289 transitions, 4391 flow [2021-03-24 11:19:25,397 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 11:19:25,397 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:25,397 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 11:19:25,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-24 11:19:25,397 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 11:19:25,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:25,397 INFO L82 PathProgramCache]: Analyzing trace with hash 793646323, now seen corresponding path program 76 times [2021-03-24 11:19:25,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:25,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129763689] [2021-03-24 11:19:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:25,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:25,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:25,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:25,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:25,461 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:25,481 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-03-24 11:19:25,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:19:25,507 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:25,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:25,550 INFO L142 QuantifierPusher]: treesize reduction 30, result has 66.3 percent of original size [2021-03-24 11:19:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:25,597 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.8 percent of original size [2021-03-24 11:19:25,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:19:25,641 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 11:19:25,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:25,672 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 11:19:25,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:25,700 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:19:25,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:19:25,739 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 11:19:25,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:19:25,781 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:19:25,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:25,819 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:19:25,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:25,860 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 11:19:25,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:19:25,914 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 11:19:25,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:25,933 INFO L142 QuantifierPusher]: treesize reduction 39, result has 57.6 percent of original size [2021-03-24 11:19:25,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:19:25,982 INFO L142 QuantifierPusher]: treesize reduction 54, result has 56.5 percent of original size [2021-03-24 11:19:25,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 11:19:26,045 INFO L142 QuantifierPusher]: treesize reduction 54, result has 63.8 percent of original size [2021-03-24 11:19:26,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 11:19:26,124 INFO L142 QuantifierPusher]: treesize reduction 29, result has 66.3 percent of original size [2021-03-24 11:19:26,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 11:19:26,170 INFO L142 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-03-24 11:19:26,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:26,194 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-24 11:19:26,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:19:26,240 INFO L142 QuantifierPusher]: treesize reduction 52, result has 43.5 percent of original size [2021-03-24 11:19:26,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:26,288 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.1 percent of original size [2021-03-24 11:19:26,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:26,329 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:26,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:26,355 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:26,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:26,355 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:26,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:26,379 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 11:19:26,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129763689] [2021-03-24 11:19:26,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:26,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:19:26,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386266607] [2021-03-24 11:19:26,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:19:26,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:26,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:19:26,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:19:26,381 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:19:26,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 289 transitions, 4391 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 11:19:26,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:26,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:19:26,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:27,045 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-03-24 11:19:27,207 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-24 11:19:27,471 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-03-24 11:19:27,698 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-03-24 11:19:28,933 INFO L129 PetriNetUnfolder]: 435/1690 cut-off events. [2021-03-24 11:19:28,934 INFO L130 PetriNetUnfolder]: For 23095/23104 co-relation queries the response was YES. [2021-03-24 11:19:28,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11372 conditions, 1690 events. 435/1690 cut-off events. For 23095/23104 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 15053 event pairs, 264 based on Foata normal form. 5/1678 useless extension candidates. Maximal degree in co-relation 11272. Up to 1344 conditions per place. [2021-03-24 11:19:28,946 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 214 selfloop transitions, 71 changer transitions 18/309 dead transitions. [2021-03-24 11:19:28,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 309 transitions, 5179 flow [2021-03-24 11:19:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:19:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:19:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1786 transitions. [2021-03-24 11:19:28,948 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3212230215827338 [2021-03-24 11:19:28,948 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1786 transitions. [2021-03-24 11:19:28,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1786 transitions. [2021-03-24 11:19:28,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:28,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1786 transitions. [2021-03-24 11:19:28,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.3) internal successors, (1786), 20 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:28,951 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 11:19:28,951 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 11:19:28,951 INFO L185 Difference]: Start difference. First operand has 300 places, 289 transitions, 4391 flow. Second operand 20 states and 1786 transitions. [2021-03-24 11:19:28,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 309 transitions, 5179 flow [2021-03-24 11:19:29,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 309 transitions, 4982 flow, removed 5 selfloop flow, removed 20 redundant places. [2021-03-24 11:19:29,027 INFO L241 Difference]: Finished difference. Result has 296 places, 281 transitions, 4208 flow [2021-03-24 11:19:29,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4196, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4208, PETRI_PLACES=296, PETRI_TRANSITIONS=281} [2021-03-24 11:19:29,027 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 230 predicate places. [2021-03-24 11:19:29,027 INFO L480 AbstractCegarLoop]: Abstraction has has 296 places, 281 transitions, 4208 flow [2021-03-24 11:19:29,028 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 11:19:29,028 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:29,028 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 11:19:29,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-24 11:19:29,028 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 11:19:29,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:29,028 INFO L82 PathProgramCache]: Analyzing trace with hash -574710475, now seen corresponding path program 77 times [2021-03-24 11:19:29,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:29,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32118746] [2021-03-24 11:19:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:29,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:29,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:29,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:29,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:29,092 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:29,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:29,112 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:19:29,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:29,136 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:19:29,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:29,174 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:19:29,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:19:29,218 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:19:29,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:29,248 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:19:29,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:29,277 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:19:29,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:19:29,318 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:19:29,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:19:29,359 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:19:29,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:29,397 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:19:29,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:29,438 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:19:29,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:19:29,482 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.7 percent of original size [2021-03-24 11:19:29,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:19:29,534 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:19:29,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:29,557 INFO L142 QuantifierPusher]: treesize reduction 52, result has 50.5 percent of original size [2021-03-24 11:19:29,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:19:29,606 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:19:29,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:29,657 INFO L142 QuantifierPusher]: treesize reduction 28, result has 47.2 percent of original size [2021-03-24 11:19:29,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:29,684 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.9 percent of original size [2021-03-24 11:19:29,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:29,727 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.1 percent of original size [2021-03-24 11:19:29,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:29,753 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.1 percent of original size [2021-03-24 11:19:29,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:29,754 INFO L142 QuantifierPusher]: treesize reduction 41, result has 43.8 percent of original size [2021-03-24 11:19:29,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:29,795 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:19:29,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:29,840 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:29,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:29,866 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:29,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:29,891 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 11:19:29,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32118746] [2021-03-24 11:19:29,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:29,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:29,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379517947] [2021-03-24 11:19:29,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:29,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:29,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:29,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:29,893 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:29,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 281 transitions, 4208 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 11:19:29,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:29,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:29,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:30,573 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-03-24 11:19:30,832 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2021-03-24 11:19:31,027 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2021-03-24 11:19:31,243 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-03-24 11:19:32,235 INFO L129 PetriNetUnfolder]: 436/1683 cut-off events. [2021-03-24 11:19:32,235 INFO L130 PetriNetUnfolder]: For 21928/21934 co-relation queries the response was YES. [2021-03-24 11:19:32,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11121 conditions, 1683 events. 436/1683 cut-off events. For 21928/21934 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 14965 event pairs, 264 based on Foata normal form. 4/1668 useless extension candidates. Maximal degree in co-relation 11023. Up to 1284 conditions per place. [2021-03-24 11:19:32,252 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 196 selfloop transitions, 69 changer transitions 28/303 dead transitions. [2021-03-24 11:19:32,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 303 transitions, 5026 flow [2021-03-24 11:19:32,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:32,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 11:19:32,254 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 11:19:32,254 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 11:19:32,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 11:19:32,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:32,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 11:19:32,255 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 11:19:32,257 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 11:19:32,257 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 11:19:32,257 INFO L185 Difference]: Start difference. First operand has 296 places, 281 transitions, 4208 flow. Second operand 18 states and 2472 transitions. [2021-03-24 11:19:32,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 303 transitions, 5026 flow [2021-03-24 11:19:32,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 303 transitions, 4830 flow, removed 10 selfloop flow, removed 22 redundant places. [2021-03-24 11:19:32,343 INFO L241 Difference]: Finished difference. Result has 292 places, 268 transitions, 3995 flow [2021-03-24 11:19:32,343 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4018, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3995, PETRI_PLACES=292, PETRI_TRANSITIONS=268} [2021-03-24 11:19:32,343 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 226 predicate places. [2021-03-24 11:19:32,343 INFO L480 AbstractCegarLoop]: Abstraction has has 292 places, 268 transitions, 3995 flow [2021-03-24 11:19:32,344 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 11:19:32,344 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:32,344 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 11:19:32,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-24 11:19:32,344 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 11:19:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:32,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1757888475, now seen corresponding path program 78 times [2021-03-24 11:19:32,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:32,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815051441] [2021-03-24 11:19:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:32,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:32,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:32,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:32,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:32,411 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:32,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:32,444 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:19:32,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:32,480 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:19:32,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:19:32,527 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:19:32,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:19:32,577 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:19:32,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:32,600 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:19:32,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:32,618 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:19:32,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:32,636 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:19:32,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:32,657 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:32,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:32,676 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:32,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:32,695 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:32,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:32,717 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:19:32,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:32,742 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:19:32,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:32,792 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size [2021-03-24 11:19:32,793 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.1 percent of original size 37 [2021-03-24 11:19:32,837 INFO L142 QuantifierPusher]: treesize reduction 40, result has 49.4 percent of original size [2021-03-24 11:19:32,838 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size 32 [2021-03-24 11:19:32,856 INFO L142 QuantifierPusher]: treesize reduction 45, result has 42.3 percent of original size [2021-03-24 11:19:32,857 INFO L147 QuantifierPusher]: treesize reduction 7, result has 78.8 percent of original size 26 [2021-03-24 11:19:32,897 INFO L142 QuantifierPusher]: treesize reduction 47, result has 44.0 percent of original size [2021-03-24 11:19:32,897 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.8 percent of original size 31 [2021-03-24 11:19:32,939 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:19:32,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:32,968 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:32,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:32,988 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:19:32,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:33,014 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:19:33,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:33,041 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:33,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:33,066 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:33,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:33,067 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:19:33,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:19:33,089 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 11:19:33,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815051441] [2021-03-24 11:19:33,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:33,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:19:33,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357679778] [2021-03-24 11:19:33,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:19:33,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:33,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:19:33,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:19:33,091 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:19:33,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 268 transitions, 3995 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 11:19:33,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:33,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:19:33,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:34,020 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-03-24 11:19:34,269 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2021-03-24 11:19:34,475 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-03-24 11:19:35,496 INFO L129 PetriNetUnfolder]: 440/1694 cut-off events. [2021-03-24 11:19:35,496 INFO L130 PetriNetUnfolder]: For 22174/22180 co-relation queries the response was YES. [2021-03-24 11:19:35,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11267 conditions, 1694 events. 440/1694 cut-off events. For 22174/22180 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 15104 event pairs, 269 based on Foata normal form. 4/1680 useless extension candidates. Maximal degree in co-relation 11168. Up to 1280 conditions per place. [2021-03-24 11:19:35,524 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 202 selfloop transitions, 64 changer transitions 28/300 dead transitions. [2021-03-24 11:19:35,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 300 transitions, 4981 flow [2021-03-24 11:19:35,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:35,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1609 transitions. [2021-03-24 11:19:35,526 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3215427657873701 [2021-03-24 11:19:35,526 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1609 transitions. [2021-03-24 11:19:35,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1609 transitions. [2021-03-24 11:19:35,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:35,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1609 transitions. [2021-03-24 11:19:35,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.38888888888889) internal successors, (1609), 18 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:35,531 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 11:19:35,531 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 11:19:35,531 INFO L185 Difference]: Start difference. First operand has 292 places, 268 transitions, 3995 flow. Second operand 18 states and 1609 transitions. [2021-03-24 11:19:35,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 300 transitions, 4981 flow [2021-03-24 11:19:35,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 300 transitions, 4758 flow, removed 21 selfloop flow, removed 24 redundant places. [2021-03-24 11:19:35,672 INFO L241 Difference]: Finished difference. Result has 282 places, 269 transitions, 3954 flow [2021-03-24 11:19:35,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3786, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3954, PETRI_PLACES=282, PETRI_TRANSITIONS=269} [2021-03-24 11:19:35,672 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 216 predicate places. [2021-03-24 11:19:35,672 INFO L480 AbstractCegarLoop]: Abstraction has has 282 places, 269 transitions, 3954 flow [2021-03-24 11:19:35,673 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 11:19:35,673 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:35,673 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:35,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-24 11:19:35,673 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 11:19:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:35,673 INFO L82 PathProgramCache]: Analyzing trace with hash 70240809, now seen corresponding path program 79 times [2021-03-24 11:19:35,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:35,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702596666] [2021-03-24 11:19:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:35,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:35,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:35,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:35,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:35,738 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:35,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:35,759 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:19:35,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:35,784 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:19:35,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:35,823 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:19:35,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:19:35,869 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:19:35,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:35,899 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:19:35,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:35,928 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:19:35,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:19:35,969 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:19:35,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:19:36,011 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:19:36,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:36,049 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:19:36,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:36,091 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:19:36,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:19:36,133 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.7 percent of original size [2021-03-24 11:19:36,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:19:36,184 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:19:36,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:36,206 INFO L142 QuantifierPusher]: treesize reduction 52, result has 50.5 percent of original size [2021-03-24 11:19:36,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:19:36,255 INFO L142 QuantifierPusher]: treesize reduction 81, result has 45.3 percent of original size [2021-03-24 11:19:36,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:19:36,311 INFO L142 QuantifierPusher]: treesize reduction 76, result has 49.0 percent of original size [2021-03-24 11:19:36,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 11:19:36,368 INFO L142 QuantifierPusher]: treesize reduction 41, result has 48.1 percent of original size [2021-03-24 11:19:36,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:36,409 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:19:36,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:36,434 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:19:36,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:36,458 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:19:36,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:36,498 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:19:36,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:36,543 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:36,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:36,569 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:36,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:36,594 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 11:19:36,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702596666] [2021-03-24 11:19:36,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:36,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:36,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486083339] [2021-03-24 11:19:36,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:36,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:36,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:36,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:36,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:36,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 269 transitions, 3954 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 11:19:36,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:36,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:36,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:37,273 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-03-24 11:19:37,508 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2021-03-24 11:19:37,739 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2021-03-24 11:19:37,980 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-03-24 11:19:38,179 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-03-24 11:19:38,946 INFO L129 PetriNetUnfolder]: 421/1645 cut-off events. [2021-03-24 11:19:38,946 INFO L130 PetriNetUnfolder]: For 19515/19521 co-relation queries the response was YES. [2021-03-24 11:19:38,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10596 conditions, 1645 events. 421/1645 cut-off events. For 19515/19521 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 14606 event pairs, 264 based on Foata normal form. 4/1631 useless extension candidates. Maximal degree in co-relation 10503. Up to 1301 conditions per place. [2021-03-24 11:19:38,961 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 192 selfloop transitions, 59 changer transitions 23/284 dead transitions. [2021-03-24 11:19:38,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 284 transitions, 4653 flow [2021-03-24 11:19:38,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:38,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:38,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2021-03-24 11:19:38,963 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4926059152677858 [2021-03-24 11:19:38,963 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2021-03-24 11:19:38,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2021-03-24 11:19:38,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:38,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2021-03-24 11:19:38,964 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 11:19:38,966 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 11:19:38,966 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 11:19:38,966 INFO L185 Difference]: Start difference. First operand has 282 places, 269 transitions, 3954 flow. Second operand 18 states and 2465 transitions. [2021-03-24 11:19:38,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 284 transitions, 4653 flow [2021-03-24 11:19:39,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 284 transitions, 4518 flow, removed 9 selfloop flow, removed 13 redundant places. [2021-03-24 11:19:39,035 INFO L241 Difference]: Finished difference. Result has 284 places, 258 transitions, 3789 flow [2021-03-24 11:19:39,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3823, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3789, PETRI_PLACES=284, PETRI_TRANSITIONS=258} [2021-03-24 11:19:39,036 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 218 predicate places. [2021-03-24 11:19:39,036 INFO L480 AbstractCegarLoop]: Abstraction has has 284 places, 258 transitions, 3789 flow [2021-03-24 11:19:39,036 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 11:19:39,036 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:39,036 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 11:19:39,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-24 11:19:39,036 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 11:19:39,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:39,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1662042271, now seen corresponding path program 80 times [2021-03-24 11:19:39,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:39,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066941014] [2021-03-24 11:19:39,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:39,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:39,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:39,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:39,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:39,097 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:39,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:39,118 INFO L142 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size [2021-03-24 11:19:39,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:39,143 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:19:39,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:39,181 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-24 11:19:39,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:19:39,226 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:19:39,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:39,244 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:39,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:39,263 INFO L142 QuantifierPusher]: treesize reduction 16, result has 74.2 percent of original size [2021-03-24 11:19:39,263 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:19:39,298 INFO L142 QuantifierPusher]: treesize reduction 16, result has 74.2 percent of original size [2021-03-24 11:19:39,299 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:19:39,335 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:19:39,336 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:19:39,368 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:19:39,369 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:19:39,402 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-24 11:19:39,403 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:19:39,437 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:19:39,437 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:19:39,478 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.2 percent of original size [2021-03-24 11:19:39,479 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-24 11:19:39,521 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:19:39,521 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:19:39,540 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.9 percent of original size [2021-03-24 11:19:39,540 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:19:39,597 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:19:39,598 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:19:39,640 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 11:19:39,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:39,666 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:19:39,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:39,687 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:39,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:39,688 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:19:39,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:39,713 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:39,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:39,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:19:39,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:39,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:39,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:39,789 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 11:19:39,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066941014] [2021-03-24 11:19:39,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:39,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:39,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638923711] [2021-03-24 11:19:39,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:39,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:39,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:39,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:39,791 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:39,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 258 transitions, 3789 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 11:19:39,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:39,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:39,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:40,828 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2021-03-24 11:19:41,027 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-03-24 11:19:41,269 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-03-24 11:19:42,089 INFO L129 PetriNetUnfolder]: 412/1618 cut-off events. [2021-03-24 11:19:42,089 INFO L130 PetriNetUnfolder]: For 19098/19104 co-relation queries the response was YES. [2021-03-24 11:19:42,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10382 conditions, 1618 events. 412/1618 cut-off events. For 19098/19104 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 14358 event pairs, 262 based on Foata normal form. 4/1603 useless extension candidates. Maximal degree in co-relation 10289. Up to 1281 conditions per place. [2021-03-24 11:19:42,101 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 182 selfloop transitions, 57 changer transitions 24/273 dead transitions. [2021-03-24 11:19:42,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 273 transitions, 4471 flow [2021-03-24 11:19:42,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:42,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2021-03-24 11:19:42,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49300559552358114 [2021-03-24 11:19:42,104 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2467 transitions. [2021-03-24 11:19:42,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2467 transitions. [2021-03-24 11:19:42,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:42,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2467 transitions. [2021-03-24 11:19:42,105 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 11:19:42,107 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 11:19:42,107 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 11:19:42,107 INFO L185 Difference]: Start difference. First operand has 284 places, 258 transitions, 3789 flow. Second operand 18 states and 2467 transitions. [2021-03-24 11:19:42,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 273 transitions, 4471 flow [2021-03-24 11:19:42,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 273 transitions, 4307 flow, removed 15 selfloop flow, removed 22 redundant places. [2021-03-24 11:19:42,171 INFO L241 Difference]: Finished difference. Result has 272 places, 246 transitions, 3578 flow [2021-03-24 11:19:42,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3637, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3578, PETRI_PLACES=272, PETRI_TRANSITIONS=246} [2021-03-24 11:19:42,171 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 206 predicate places. [2021-03-24 11:19:42,171 INFO L480 AbstractCegarLoop]: Abstraction has has 272 places, 246 transitions, 3578 flow [2021-03-24 11:19:42,172 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 11:19:42,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:42,172 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 11:19:42,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-24 11:19:42,172 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 11:19:42,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:42,172 INFO L82 PathProgramCache]: Analyzing trace with hash -57329705, now seen corresponding path program 81 times [2021-03-24 11:19:42,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:42,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597540527] [2021-03-24 11:19:42,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:42,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:42,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:42,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:42,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:42,236 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:42,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:42,257 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:19:42,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:42,282 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:19:42,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:42,320 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:19:42,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:19:42,365 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:19:42,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:42,395 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:19:42,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:19:42,424 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:19:42,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:19:42,465 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:19:42,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:42,503 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:19:42,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:42,540 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:19:42,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:42,581 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:19:42,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:19:42,623 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.7 percent of original size [2021-03-24 11:19:42,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:19:42,675 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:19:42,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:19:42,698 INFO L142 QuantifierPusher]: treesize reduction 69, result has 53.7 percent of original size [2021-03-24 11:19:42,699 INFO L147 QuantifierPusher]: treesize reduction 7, result has 91.3 percent of original size 73 [2021-03-24 11:19:42,774 INFO L142 QuantifierPusher]: treesize reduction 81, result has 45.3 percent of original size [2021-03-24 11:19:42,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:19:42,829 INFO L142 QuantifierPusher]: treesize reduction 76, result has 49.0 percent of original size [2021-03-24 11:19:42,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 11:19:42,890 INFO L142 QuantifierPusher]: treesize reduction 41, result has 48.1 percent of original size [2021-03-24 11:19:42,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:42,934 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:19:42,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:42,962 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:19:42,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:42,963 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:19:42,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:43,005 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:19:43,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:43,051 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:43,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:43,078 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:43,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:43,104 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 11:19:43,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597540527] [2021-03-24 11:19:43,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:43,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:43,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700389660] [2021-03-24 11:19:43,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:43,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:43,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:43,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:43,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:43,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 246 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 11:19:43,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:43,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:43,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:43,781 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2021-03-24 11:19:44,008 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 11:19:44,221 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-03-24 11:19:44,442 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-03-24 11:19:44,705 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-03-24 11:19:45,447 INFO L129 PetriNetUnfolder]: 397/1555 cut-off events. [2021-03-24 11:19:45,447 INFO L130 PetriNetUnfolder]: For 17139/17145 co-relation queries the response was YES. [2021-03-24 11:19:45,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9777 conditions, 1555 events. 397/1555 cut-off events. For 17139/17145 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 13597 event pairs, 251 based on Foata normal form. 4/1541 useless extension candidates. Maximal degree in co-relation 9689. Up to 1228 conditions per place. [2021-03-24 11:19:45,460 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 168 selfloop transitions, 53 changer transitions 27/258 dead transitions. [2021-03-24 11:19:45,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 258 transitions, 4191 flow [2021-03-24 11:19:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:45,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2464 transitions. [2021-03-24 11:19:45,462 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4924060751398881 [2021-03-24 11:19:45,462 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2464 transitions. [2021-03-24 11:19:45,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2464 transitions. [2021-03-24 11:19:45,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:45,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2464 transitions. [2021-03-24 11:19:45,464 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 11:19:45,466 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 11:19:45,466 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 11:19:45,466 INFO L185 Difference]: Start difference. First operand has 272 places, 246 transitions, 3578 flow. Second operand 18 states and 2464 transitions. [2021-03-24 11:19:45,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 258 transitions, 4191 flow [2021-03-24 11:19:45,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 258 transitions, 4026 flow, removed 15 selfloop flow, removed 22 redundant places. [2021-03-24 11:19:45,527 INFO L241 Difference]: Finished difference. Result has 257 places, 229 transitions, 3277 flow [2021-03-24 11:19:45,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3421, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3277, PETRI_PLACES=257, PETRI_TRANSITIONS=229} [2021-03-24 11:19:45,528 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 191 predicate places. [2021-03-24 11:19:45,528 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 229 transitions, 3277 flow [2021-03-24 11:19:45,528 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 11:19:45,528 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:45,528 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 11:19:45,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-24 11:19:45,528 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 11:19:45,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:45,528 INFO L82 PathProgramCache]: Analyzing trace with hash -439619361, now seen corresponding path program 82 times [2021-03-24 11:19:45,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:45,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891204664] [2021-03-24 11:19:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:45,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:45,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:45,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:45,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:45,592 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:45,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:45,615 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:19:45,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:45,650 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:19:45,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:19:45,695 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:19:45,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:19:45,745 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:19:45,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:45,768 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:19:45,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:45,786 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:19:45,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:45,804 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:19:45,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:45,825 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:19:45,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:45,865 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:45,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:45,886 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:45,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:45,907 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:19:45,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:45,929 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:19:45,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:45,956 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:19:45,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:19:45,971 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:19:45,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:45,996 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:19:45,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:19:46,023 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:19:46,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:19:46,048 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:19:46,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:46,076 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:46,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:46,095 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:19:46,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:46,120 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:19:46,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:46,147 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:46,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:46,172 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:46,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:46,173 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:19:46,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:19:46,195 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 11:19:46,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891204664] [2021-03-24 11:19:46,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:46,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:19:46,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58467289] [2021-03-24 11:19:46,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:19:46,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:46,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:19:46,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:19:46,197 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:19:46,198 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 229 transitions, 3277 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 11:19:46,198 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:46,198 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:19:46,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:47,218 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-03-24 11:19:47,418 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:19:48,222 INFO L129 PetriNetUnfolder]: 381/1489 cut-off events. [2021-03-24 11:19:48,222 INFO L130 PetriNetUnfolder]: For 15199/15205 co-relation queries the response was YES. [2021-03-24 11:19:48,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9204 conditions, 1489 events. 381/1489 cut-off events. For 15199/15205 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 12849 event pairs, 247 based on Foata normal form. 4/1474 useless extension candidates. Maximal degree in co-relation 9122. Up to 1210 conditions per place. [2021-03-24 11:19:48,237 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 161 selfloop transitions, 48 changer transitions 22/237 dead transitions. [2021-03-24 11:19:48,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 237 transitions, 3806 flow [2021-03-24 11:19:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1598 transitions. [2021-03-24 11:19:48,239 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3193445243804956 [2021-03-24 11:19:48,239 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1598 transitions. [2021-03-24 11:19:48,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1598 transitions. [2021-03-24 11:19:48,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:48,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1598 transitions. [2021-03-24 11:19:48,245 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 11:19:48,248 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 11:19:48,248 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 11:19:48,248 INFO L185 Difference]: Start difference. First operand has 257 places, 229 transitions, 3277 flow. Second operand 18 states and 1598 transitions. [2021-03-24 11:19:48,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 237 transitions, 3806 flow [2021-03-24 11:19:48,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 237 transitions, 3506 flow, removed 33 selfloop flow, removed 24 redundant places. [2021-03-24 11:19:48,305 INFO L241 Difference]: Finished difference. Result has 235 places, 213 transitions, 2932 flow [2021-03-24 11:19:48,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2982, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2932, PETRI_PLACES=235, PETRI_TRANSITIONS=213} [2021-03-24 11:19:48,308 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 169 predicate places. [2021-03-24 11:19:48,308 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 213 transitions, 2932 flow [2021-03-24 11:19:48,308 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 11:19:48,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:48,309 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 11:19:48,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-24 11:19:48,310 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 11:19:48,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:48,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1504495617, now seen corresponding path program 83 times [2021-03-24 11:19:48,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:48,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89343995] [2021-03-24 11:19:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:48,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:48,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:48,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:48,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:48,468 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:48,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:48,488 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:19:48,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:48,510 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:19:48,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:48,546 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:19:48,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:19:48,588 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:19:48,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:48,606 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:19:48,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:48,625 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:19:48,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:48,659 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:19:48,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:48,690 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:19:48,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:48,722 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:19:48,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:48,756 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:19:48,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:48,796 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:19:48,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:48,812 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:19:48,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:48,848 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:19:48,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:48,876 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:19:48,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:48,908 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-24 11:19:48,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:48,937 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:48,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:48,938 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:19:48,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:48,970 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:19:48,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:48,991 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:19:48,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:49,033 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:49,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:49,062 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:49,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:49,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:49,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:49,115 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 11:19:49,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89343995] [2021-03-24 11:19:49,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:49,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:49,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365934077] [2021-03-24 11:19:49,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:49,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:49,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:49,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:49,117 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:49,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 213 transitions, 2932 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 11:19:49,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:49,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:49,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:49,903 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:19:50,162 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-03-24 11:19:50,324 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-03-24 11:19:50,645 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-24 11:19:50,963 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-24 11:19:51,385 INFO L129 PetriNetUnfolder]: 413/1569 cut-off events. [2021-03-24 11:19:51,385 INFO L130 PetriNetUnfolder]: For 13423/13429 co-relation queries the response was YES. [2021-03-24 11:19:51,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9221 conditions, 1569 events. 413/1569 cut-off events. For 13423/13429 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 13715 event pairs, 264 based on Foata normal form. 4/1559 useless extension candidates. Maximal degree in co-relation 9147. Up to 1166 conditions per place. [2021-03-24 11:19:51,396 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 157 selfloop transitions, 63 changer transitions 24/254 dead transitions. [2021-03-24 11:19:51,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 254 transitions, 3918 flow [2021-03-24 11:19:51,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:51,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 11:19:51,398 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 11:19:51,398 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 11:19:51,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 11:19:51,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:51,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 11:19:51,400 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 11:19:51,402 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 11:19:51,402 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 11:19:51,402 INFO L185 Difference]: Start difference. First operand has 235 places, 213 transitions, 2932 flow. Second operand 18 states and 2468 transitions. [2021-03-24 11:19:51,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 254 transitions, 3918 flow [2021-03-24 11:19:51,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 254 transitions, 3706 flow, removed 16 selfloop flow, removed 18 redundant places. [2021-03-24 11:19:51,441 INFO L241 Difference]: Finished difference. Result has 216 places, 216 transitions, 2961 flow [2021-03-24 11:19:51,441 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2732, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2961, PETRI_PLACES=216, PETRI_TRANSITIONS=216} [2021-03-24 11:19:51,441 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 150 predicate places. [2021-03-24 11:19:51,441 INFO L480 AbstractCegarLoop]: Abstraction has has 216 places, 216 transitions, 2961 flow [2021-03-24 11:19:51,442 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 11:19:51,442 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:51,442 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 11:19:51,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-24 11:19:51,442 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 11:19:51,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:51,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1384720233, now seen corresponding path program 84 times [2021-03-24 11:19:51,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:51,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751384680] [2021-03-24 11:19:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:51,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:51,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:51,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:51,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:51,497 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:51,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:51,520 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:19:51,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:51,551 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:19:51,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:19:51,595 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:19:51,596 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:19:51,650 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:19:51,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:51,669 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:19:51,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:51,689 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:19:51,689 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:19:51,724 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:19:51,725 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:19:51,756 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:19:51,757 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:19:51,789 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:19:51,790 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:19:51,825 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:19:51,825 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:19:51,861 INFO L142 QuantifierPusher]: treesize reduction 42, result has 47.5 percent of original size [2021-03-24 11:19:51,861 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:19:51,899 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.8 percent of original size [2021-03-24 11:19:51,900 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:19:51,939 INFO L142 QuantifierPusher]: treesize reduction 42, result has 43.2 percent of original size [2021-03-24 11:19:51,939 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.6 percent of original size 29 [2021-03-24 11:19:51,957 INFO L142 QuantifierPusher]: treesize reduction 44, result has 37.1 percent of original size [2021-03-24 11:19:51,958 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-24 11:19:51,995 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.8 percent of original size [2021-03-24 11:19:51,996 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:19:52,037 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:19:52,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:52,066 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:19:52,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:52,087 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:19:52,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:52,114 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:19:52,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:52,142 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:19:52,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:52,168 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:19:52,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:52,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:52,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:52,194 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 11:19:52,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751384680] [2021-03-24 11:19:52,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:52,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:19:52,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590105619] [2021-03-24 11:19:52,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:19:52,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:52,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:19:52,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:19:52,196 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:19:52,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 216 transitions, 2961 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 11:19:52,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:52,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:19:52,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:53,001 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 11:19:53,205 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-03-24 11:19:53,435 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 11:19:53,736 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 11:19:54,499 INFO L129 PetriNetUnfolder]: 399/1531 cut-off events. [2021-03-24 11:19:54,499 INFO L130 PetriNetUnfolder]: For 12808/12814 co-relation queries the response was YES. [2021-03-24 11:19:54,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8917 conditions, 1531 events. 399/1531 cut-off events. For 12808/12814 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 13353 event pairs, 248 based on Foata normal form. 4/1518 useless extension candidates. Maximal degree in co-relation 8845. Up to 1147 conditions per place. [2021-03-24 11:19:54,511 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 157 selfloop transitions, 51 changer transitions 27/245 dead transitions. [2021-03-24 11:19:54,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 245 transitions, 3760 flow [2021-03-24 11:19:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2021-03-24 11:19:54,513 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49300559552358114 [2021-03-24 11:19:54,513 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2467 transitions. [2021-03-24 11:19:54,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2467 transitions. [2021-03-24 11:19:54,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:54,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2467 transitions. [2021-03-24 11:19:54,515 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 11:19:54,516 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 11:19:54,517 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 11:19:54,517 INFO L185 Difference]: Start difference. First operand has 216 places, 216 transitions, 2961 flow. Second operand 18 states and 2467 transitions. [2021-03-24 11:19:54,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 245 transitions, 3760 flow [2021-03-24 11:19:54,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 245 transitions, 3608 flow, removed 16 selfloop flow, removed 14 redundant places. [2021-03-24 11:19:54,558 INFO L241 Difference]: Finished difference. Result has 219 places, 212 transitions, 2878 flow [2021-03-24 11:19:54,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2821, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2878, PETRI_PLACES=219, PETRI_TRANSITIONS=212} [2021-03-24 11:19:54,558 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 153 predicate places. [2021-03-24 11:19:54,558 INFO L480 AbstractCegarLoop]: Abstraction has has 219 places, 212 transitions, 2878 flow [2021-03-24 11:19:54,559 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 11:19:54,559 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:54,559 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 11:19:54,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-24 11:19:54,559 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 11:19:54,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:54,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1786180513, now seen corresponding path program 85 times [2021-03-24 11:19:54,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:54,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013175136] [2021-03-24 11:19:54,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:54,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:54,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:54,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:54,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:54,624 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:54,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:54,646 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:19:54,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:54,682 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:19:54,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:19:54,729 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:19:54,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:19:54,782 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:19:54,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:54,825 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:19:54,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:54,844 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:19:54,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:54,863 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:19:54,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:54,886 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:54,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:54,908 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:54,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:54,929 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:19:54,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:54,956 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:19:54,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:54,983 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:19:54,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:19:55,000 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:19:55,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:55,025 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:19:55,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:19:55,053 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:19:55,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:19:55,078 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:19:55,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:19:55,104 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:19:55,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:55,134 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:55,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:55,156 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:19:55,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:55,183 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:19:55,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:55,212 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:55,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:55,239 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:55,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:55,240 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:19:55,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:19:55,264 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 11:19:55,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013175136] [2021-03-24 11:19:55,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:55,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:19:55,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049735146] [2021-03-24 11:19:55,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:19:55,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:55,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:19:55,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:19:55,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:19:55,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 212 transitions, 2878 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 11:19:55,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:55,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:19:55,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:56,365 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-03-24 11:19:56,832 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 11:19:57,074 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 11:19:57,527 INFO L129 PetriNetUnfolder]: 409/1573 cut-off events. [2021-03-24 11:19:57,527 INFO L130 PetriNetUnfolder]: For 13016/13037 co-relation queries the response was YES. [2021-03-24 11:19:57,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9123 conditions, 1573 events. 409/1573 cut-off events. For 13016/13037 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 13856 event pairs, 249 based on Foata normal form. 5/1558 useless extension candidates. Maximal degree in co-relation 9050. Up to 1125 conditions per place. [2021-03-24 11:19:57,538 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 174 selfloop transitions, 58 changer transitions 30/268 dead transitions. [2021-03-24 11:19:57,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 268 transitions, 4049 flow [2021-03-24 11:19:57,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:57,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1614 transitions. [2021-03-24 11:19:57,540 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3225419664268585 [2021-03-24 11:19:57,540 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1614 transitions. [2021-03-24 11:19:57,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1614 transitions. [2021-03-24 11:19:57,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:57,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1614 transitions. [2021-03-24 11:19:57,541 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 11:19:57,543 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 11:19:57,543 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 11:19:57,543 INFO L185 Difference]: Start difference. First operand has 219 places, 212 transitions, 2878 flow. Second operand 18 states and 1614 transitions. [2021-03-24 11:19:57,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 268 transitions, 4049 flow [2021-03-24 11:19:57,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 268 transitions, 3907 flow, removed 10 selfloop flow, removed 14 redundant places. [2021-03-24 11:19:57,582 INFO L241 Difference]: Finished difference. Result has 223 places, 220 transitions, 3007 flow [2021-03-24 11:19:57,582 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2760, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3007, PETRI_PLACES=223, PETRI_TRANSITIONS=220} [2021-03-24 11:19:57,582 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 157 predicate places. [2021-03-24 11:19:57,582 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 220 transitions, 3007 flow [2021-03-24 11:19:57,582 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 11:19:57,582 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:57,582 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 11:19:57,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-24 11:19:57,582 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 11:19:57,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:57,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1934793847, now seen corresponding path program 86 times [2021-03-24 11:19:57,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:57,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806147835] [2021-03-24 11:19:57,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:57,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:57,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:57,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:57,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:57,645 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:57,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:57,666 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:19:57,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:19:57,701 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:19:57,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:19:57,747 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:19:57,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:19:57,798 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:19:57,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:19:57,821 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:19:57,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:57,840 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:19:57,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:57,858 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:19:57,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:57,879 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:57,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:57,898 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:19:57,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:57,918 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:19:57,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:57,943 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:19:57,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:57,969 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:19:57,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:57,998 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:19:57,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:19:58,016 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:19:58,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:58,043 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:19:58,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:19:58,072 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:19:58,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:19:58,098 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:19:58,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:58,128 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:58,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:58,149 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:19:58,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:58,176 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:19:58,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:58,205 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:58,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:58,232 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:58,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:58,233 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:19:58,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:19:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:58,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806147835] [2021-03-24 11:19:58,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:58,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:19:58,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822187269] [2021-03-24 11:19:58,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:19:58,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:58,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:19:58,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:19:58,260 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:19:58,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 220 transitions, 3007 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 11:19:58,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:58,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:19:58,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:59,033 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:19:59,204 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-03-24 11:19:59,535 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:20:00,446 INFO L129 PetriNetUnfolder]: 391/1517 cut-off events. [2021-03-24 11:20:00,446 INFO L130 PetriNetUnfolder]: For 12954/12960 co-relation queries the response was YES. [2021-03-24 11:20:00,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8989 conditions, 1517 events. 391/1517 cut-off events. For 12954/12960 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 13252 event pairs, 245 based on Foata normal form. 4/1504 useless extension candidates. Maximal degree in co-relation 8912. Up to 1157 conditions per place. [2021-03-24 11:20:00,457 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 163 selfloop transitions, 57 changer transitions 26/252 dead transitions. [2021-03-24 11:20:00,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 252 transitions, 3806 flow [2021-03-24 11:20:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:00,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1611 transitions. [2021-03-24 11:20:00,459 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32194244604316546 [2021-03-24 11:20:00,459 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1611 transitions. [2021-03-24 11:20:00,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1611 transitions. [2021-03-24 11:20:00,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:00,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1611 transitions. [2021-03-24 11:20:00,460 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 11:20:00,462 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 11:20:00,462 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 11:20:00,462 INFO L185 Difference]: Start difference. First operand has 223 places, 220 transitions, 3007 flow. Second operand 18 states and 1611 transitions. [2021-03-24 11:20:00,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 252 transitions, 3806 flow [2021-03-24 11:20:00,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 252 transitions, 3675 flow, removed 21 selfloop flow, removed 13 redundant places. [2021-03-24 11:20:00,501 INFO L241 Difference]: Finished difference. Result has 227 places, 221 transitions, 3030 flow [2021-03-24 11:20:00,501 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2895, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3030, PETRI_PLACES=227, PETRI_TRANSITIONS=221} [2021-03-24 11:20:00,501 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 161 predicate places. [2021-03-24 11:20:00,501 INFO L480 AbstractCegarLoop]: Abstraction has has 227 places, 221 transitions, 3030 flow [2021-03-24 11:20:00,501 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 11:20:00,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:00,501 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 11:20:00,501 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-24 11:20:00,501 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 11:20:00,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:00,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1612990093, now seen corresponding path program 87 times [2021-03-24 11:20:00,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:00,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516531383] [2021-03-24 11:20:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:00,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:00,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:00,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:00,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:00,562 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:00,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:00,584 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:20:00,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:00,609 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:20:00,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:20:00,648 INFO L142 QuantifierPusher]: treesize reduction 24, result has 70.7 percent of original size [2021-03-24 11:20:00,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:20:00,695 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:20:00,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:00,714 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:20:00,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:00,733 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:20:00,734 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:20:00,770 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:20:00,771 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:20:00,803 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:20:00,804 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:20:00,837 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:20:00,838 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 11:20:00,873 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:20:00,874 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 11:20:00,911 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:20:00,912 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:20:00,955 INFO L142 QuantifierPusher]: treesize reduction 33, result has 60.7 percent of original size [2021-03-24 11:20:00,956 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 11:20:01,019 INFO L142 QuantifierPusher]: treesize reduction 33, result has 58.2 percent of original size [2021-03-24 11:20:01,020 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:20:01,040 INFO L142 QuantifierPusher]: treesize reduction 42, result has 44.0 percent of original size [2021-03-24 11:20:01,040 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 11:20:01,079 INFO L142 QuantifierPusher]: treesize reduction 33, result has 58.2 percent of original size [2021-03-24 11:20:01,080 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:20:01,139 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 11:20:01,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:01,166 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:20:01,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:01,187 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:20:01,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:01,188 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:20:01,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:01,214 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:20:01,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:01,242 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:20:01,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:01,269 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:01,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:01,294 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 11:20:01,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516531383] [2021-03-24 11:20:01,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:01,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:01,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741029209] [2021-03-24 11:20:01,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:01,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:01,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:01,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:01,296 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:01,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 221 transitions, 3030 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 11:20:01,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:01,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:01,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:02,074 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 11:20:02,259 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-24 11:20:02,540 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-24 11:20:02,772 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-03-24 11:20:03,551 INFO L129 PetriNetUnfolder]: 374/1445 cut-off events. [2021-03-24 11:20:03,551 INFO L130 PetriNetUnfolder]: For 12198/12204 co-relation queries the response was YES. [2021-03-24 11:20:03,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8435 conditions, 1445 events. 374/1445 cut-off events. For 12198/12204 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 12418 event pairs, 234 based on Foata normal form. 4/1433 useless extension candidates. Maximal degree in co-relation 8358. Up to 1112 conditions per place. [2021-03-24 11:20:03,562 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 158 selfloop transitions, 55 changer transitions 24/247 dead transitions. [2021-03-24 11:20:03,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 247 transitions, 3770 flow [2021-03-24 11:20:03,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:03,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 11:20:03,564 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 11:20:03,565 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 11:20:03,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 11:20:03,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:03,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 11:20:03,566 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 11:20:03,568 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 11:20:03,568 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 11:20:03,568 INFO L185 Difference]: Start difference. First operand has 227 places, 221 transitions, 3030 flow. Second operand 18 states and 2468 transitions. [2021-03-24 11:20:03,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 247 transitions, 3770 flow [2021-03-24 11:20:03,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 247 transitions, 3643 flow, removed 8 selfloop flow, removed 14 redundant places. [2021-03-24 11:20:03,608 INFO L241 Difference]: Finished difference. Result has 229 places, 218 transitions, 2958 flow [2021-03-24 11:20:03,608 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2905, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2958, PETRI_PLACES=229, PETRI_TRANSITIONS=218} [2021-03-24 11:20:03,608 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 163 predicate places. [2021-03-24 11:20:03,608 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 218 transitions, 2958 flow [2021-03-24 11:20:03,608 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 11:20:03,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:03,608 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 11:20:03,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-24 11:20:03,608 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 11:20:03,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:03,609 INFO L82 PathProgramCache]: Analyzing trace with hash 2051584749, now seen corresponding path program 88 times [2021-03-24 11:20:03,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:03,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282247980] [2021-03-24 11:20:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:03,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:03,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:03,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:03,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:03,672 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:03,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:03,708 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:20:03,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:03,750 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:20:03,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:20:03,822 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:20:03,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:20:03,904 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:20:03,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:03,924 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:20:03,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:03,964 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.4 percent of original size [2021-03-24 11:20:03,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:20:04,004 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:20:04,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:04,042 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:20:04,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:04,080 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:20:04,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:20:04,123 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:20:04,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:20:04,172 INFO L142 QuantifierPusher]: treesize reduction 71, result has 43.2 percent of original size [2021-03-24 11:20:04,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:20:04,225 INFO L142 QuantifierPusher]: treesize reduction 71, result has 40.8 percent of original size [2021-03-24 11:20:04,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:20:04,247 INFO L142 QuantifierPusher]: treesize reduction 71, result has 37.7 percent of original size [2021-03-24 11:20:04,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:20:04,296 INFO L142 QuantifierPusher]: treesize reduction 72, result has 44.6 percent of original size [2021-03-24 11:20:04,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:20:04,357 INFO L142 QuantifierPusher]: treesize reduction 30, result has 52.4 percent of original size [2021-03-24 11:20:04,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:20:04,386 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:20:04,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:04,417 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:20:04,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:20:04,440 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:20:04,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:04,441 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:20:04,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:20:04,485 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:20:04,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:04,515 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:20:04,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:04,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:04,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:04,569 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 11:20:04,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282247980] [2021-03-24 11:20:04,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:04,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:04,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374829187] [2021-03-24 11:20:04,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:04,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:04,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:04,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:04,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:04,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 218 transitions, 2958 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 11:20:04,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:04,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:04,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:05,202 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2021-03-24 11:20:05,375 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2021-03-24 11:20:05,587 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-24 11:20:05,862 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-03-24 11:20:06,286 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-03-24 11:20:06,538 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-03-24 11:20:06,760 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-03-24 11:20:07,523 INFO L129 PetriNetUnfolder]: 363/1406 cut-off events. [2021-03-24 11:20:07,523 INFO L130 PetriNetUnfolder]: For 12014/12020 co-relation queries the response was YES. [2021-03-24 11:20:07,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8236 conditions, 1406 events. 363/1406 cut-off events. For 12014/12020 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 12020 event pairs, 209 based on Foata normal form. 5/1396 useless extension candidates. Maximal degree in co-relation 8159. Up to 1037 conditions per place. [2021-03-24 11:20:07,540 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 165 selfloop transitions, 63 changer transitions 19/257 dead transitions. [2021-03-24 11:20:07,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 257 transitions, 3928 flow [2021-03-24 11:20:07,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2471 transitions. [2021-03-24 11:20:07,542 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4938049560351719 [2021-03-24 11:20:07,542 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2471 transitions. [2021-03-24 11:20:07,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2471 transitions. [2021-03-24 11:20:07,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:07,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2471 transitions. [2021-03-24 11:20:07,545 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 11:20:07,547 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 11:20:07,548 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 11:20:07,548 INFO L185 Difference]: Start difference. First operand has 229 places, 218 transitions, 2958 flow. Second operand 18 states and 2471 transitions. [2021-03-24 11:20:07,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 257 transitions, 3928 flow [2021-03-24 11:20:07,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 257 transitions, 3794 flow, removed 10 selfloop flow, removed 16 redundant places. [2021-03-24 11:20:07,606 INFO L241 Difference]: Finished difference. Result has 228 places, 225 transitions, 3116 flow [2021-03-24 11:20:07,607 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2836, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3116, PETRI_PLACES=228, PETRI_TRANSITIONS=225} [2021-03-24 11:20:07,607 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 162 predicate places. [2021-03-24 11:20:07,607 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 225 transitions, 3116 flow [2021-03-24 11:20:07,607 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 11:20:07,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:07,607 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 11:20:07,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-24 11:20:07,608 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 11:20:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:07,608 INFO L82 PathProgramCache]: Analyzing trace with hash -2020061949, now seen corresponding path program 89 times [2021-03-24 11:20:07,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:07,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698938408] [2021-03-24 11:20:07,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:07,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:07,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:07,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:07,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:07,687 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:07,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:07,708 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:20:07,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:20:07,743 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:20:07,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:20:07,790 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:20:07,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:20:07,843 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:20:07,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:20:07,868 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:20:07,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:07,888 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:20:07,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:20:07,907 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:20:07,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:07,930 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:20:07,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:07,950 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:20:07,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:07,972 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:20:07,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:20:07,998 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:20:07,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:08,027 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:20:08,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:08,058 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:20:08,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:20:08,078 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:20:08,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:08,107 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:20:08,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:20:08,138 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:20:08,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:20:08,165 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:20:08,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:08,196 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:20:08,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:20:08,218 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:20:08,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:20:08,245 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:20:08,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:20:08,276 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:20:08,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:20:08,303 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:20:08,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:20:08,303 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:20:08,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:20:08,327 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 11:20:08,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698938408] [2021-03-24 11:20:08,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:08,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:20:08,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786643185] [2021-03-24 11:20:08,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:20:08,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:08,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:20:08,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:20:08,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:20:08,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 225 transitions, 3116 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 11:20:08,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:08,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:20:08,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:09,364 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-03-24 11:20:09,634 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:20:10,561 INFO L129 PetriNetUnfolder]: 355/1397 cut-off events. [2021-03-24 11:20:10,561 INFO L130 PetriNetUnfolder]: For 12258/12264 co-relation queries the response was YES. [2021-03-24 11:20:10,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8293 conditions, 1397 events. 355/1397 cut-off events. For 12258/12264 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 11980 event pairs, 218 based on Foata normal form. 4/1386 useless extension candidates. Maximal degree in co-relation 8217. Up to 1062 conditions per place. [2021-03-24 11:20:10,571 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 170 selfloop transitions, 56 changer transitions 28/260 dead transitions. [2021-03-24 11:20:10,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 260 transitions, 4035 flow [2021-03-24 11:20:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:10,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1611 transitions. [2021-03-24 11:20:10,573 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32194244604316546 [2021-03-24 11:20:10,573 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1611 transitions. [2021-03-24 11:20:10,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1611 transitions. [2021-03-24 11:20:10,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:10,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1611 transitions. [2021-03-24 11:20:10,574 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 11:20:10,576 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 11:20:10,576 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 11:20:10,576 INFO L185 Difference]: Start difference. First operand has 228 places, 225 transitions, 3116 flow. Second operand 18 states and 1611 transitions. [2021-03-24 11:20:10,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 260 transitions, 4035 flow [2021-03-24 11:20:10,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 260 transitions, 3881 flow, removed 13 selfloop flow, removed 14 redundant places. [2021-03-24 11:20:10,613 INFO L241 Difference]: Finished difference. Result has 234 places, 226 transitions, 3143 flow [2021-03-24 11:20:10,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2974, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3143, PETRI_PLACES=234, PETRI_TRANSITIONS=226} [2021-03-24 11:20:10,614 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 168 predicate places. [2021-03-24 11:20:10,614 INFO L480 AbstractCegarLoop]: Abstraction has has 234 places, 226 transitions, 3143 flow [2021-03-24 11:20:10,614 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 11:20:10,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:10,614 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 11:20:10,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-24 11:20:10,614 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 11:20:10,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:10,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1067552395, now seen corresponding path program 90 times [2021-03-24 11:20:10,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:10,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052281825] [2021-03-24 11:20:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:10,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:10,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:10,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:10,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:10,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:10,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:10,698 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:20:10,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:20:10,729 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 11:20:10,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:20:10,775 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:20:10,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:20:10,826 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:20:10,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:10,845 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:20:10,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:10,866 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:20:10,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:20:10,889 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:20:10,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:10,911 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:20:10,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:10,933 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 11:20:10,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:10,957 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 11:20:10,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:10,982 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 11:20:10,983 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 11:20:11,029 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:20:11,030 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 11:20:11,048 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.1 percent of original size [2021-03-24 11:20:11,048 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 11:20:11,091 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 11:20:11,091 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 11:20:11,154 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:20:11,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:11,182 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:20:11,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:11,201 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:20:11,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:20:11,227 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:20:11,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:11,254 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:20:11,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:20:11,279 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:20:11,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:11,306 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:20:11,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:11,307 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:11,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:11,333 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 11:20:11,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052281825] [2021-03-24 11:20:11,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:11,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:11,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060812023] [2021-03-24 11:20:11,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:11,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:11,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:11,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:11,335 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:11,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 226 transitions, 3143 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 11:20:11,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:11,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:11,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:12,149 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 11:20:12,343 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-03-24 11:20:12,625 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2021-03-24 11:20:13,710 INFO L129 PetriNetUnfolder]: 344/1363 cut-off events. [2021-03-24 11:20:13,710 INFO L130 PetriNetUnfolder]: For 12071/12077 co-relation queries the response was YES. [2021-03-24 11:20:13,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8050 conditions, 1363 events. 344/1363 cut-off events. For 12071/12077 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11643 event pairs, 206 based on Foata normal form. 4/1352 useless extension candidates. Maximal degree in co-relation 7970. Up to 1026 conditions per place. [2021-03-24 11:20:13,721 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 164 selfloop transitions, 72 changer transitions 9/255 dead transitions. [2021-03-24 11:20:13,721 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 255 transitions, 3966 flow [2021-03-24 11:20:13,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:20:13,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:20:13,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2603 transitions. [2021-03-24 11:20:13,723 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 11:20:13,723 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2603 transitions. [2021-03-24 11:20:13,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2603 transitions. [2021-03-24 11:20:13,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:13,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2603 transitions. [2021-03-24 11:20:13,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.0) internal successors, (2603), 19 states have internal predecessors, (2603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:20:13,727 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 11:20:13,727 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 11:20:13,727 INFO L185 Difference]: Start difference. First operand has 234 places, 226 transitions, 3143 flow. Second operand 19 states and 2603 transitions. [2021-03-24 11:20:13,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 255 transitions, 3966 flow [2021-03-24 11:20:13,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 255 transitions, 3860 flow, removed 5 selfloop flow, removed 13 redundant places. [2021-03-24 11:20:13,770 INFO L241 Difference]: Finished difference. Result has 238 places, 234 transitions, 3328 flow [2021-03-24 11:20:13,770 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3039, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3328, PETRI_PLACES=238, PETRI_TRANSITIONS=234} [2021-03-24 11:20:13,770 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 172 predicate places. [2021-03-24 11:20:13,770 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 234 transitions, 3328 flow [2021-03-24 11:20:13,770 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 11:20:13,770 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:13,770 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 11:20:13,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-24 11:20:13,771 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 11:20:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:13,771 INFO L82 PathProgramCache]: Analyzing trace with hash 2087620089, now seen corresponding path program 91 times [2021-03-24 11:20:13,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:13,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746219007] [2021-03-24 11:20:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:13,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:13,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:13,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:13,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:13,828 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:13,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:13,851 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:13,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:13,884 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:13,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:13,952 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:13,952 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:14,008 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:14,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:14,029 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:14,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:14,049 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:14,050 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:14,085 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:14,086 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:14,118 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:14,119 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:14,153 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:20:14,153 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:20:14,190 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 11:20:14,191 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 11:20:14,228 INFO L142 QuantifierPusher]: treesize reduction 42, result has 47.5 percent of original size [2021-03-24 11:20:14,229 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:20:14,270 INFO L142 QuantifierPusher]: treesize reduction 42, result has 44.0 percent of original size [2021-03-24 11:20:14,270 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size 30 [2021-03-24 11:20:14,287 INFO L142 QuantifierPusher]: treesize reduction 44, result has 38.0 percent of original size [2021-03-24 11:20:14,288 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 11:20:14,326 INFO L142 QuantifierPusher]: treesize reduction 42, result has 47.5 percent of original size [2021-03-24 11:20:14,326 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:20:14,369 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:20:14,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:14,397 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:20:14,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:14,416 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:20:14,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:20:14,443 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:14,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:14,471 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:14,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:14,501 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:14,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:14,502 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:14,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:14,529 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:14,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:14,555 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 11:20:14,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746219007] [2021-03-24 11:20:14,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:14,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:14,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858041614] [2021-03-24 11:20:14,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:14,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:14,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:14,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:14,557 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:14,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 234 transitions, 3328 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 11:20:14,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:14,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:14,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:15,394 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 11:20:15,610 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-03-24 11:20:15,881 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2021-03-24 11:20:16,998 INFO L129 PetriNetUnfolder]: 341/1339 cut-off events. [2021-03-24 11:20:16,998 INFO L130 PetriNetUnfolder]: For 12753/12759 co-relation queries the response was YES. [2021-03-24 11:20:17,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8145 conditions, 1339 events. 341/1339 cut-off events. For 12753/12759 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 11339 event pairs, 209 based on Foata normal form. 4/1327 useless extension candidates. Maximal degree in co-relation 8064. Up to 1014 conditions per place. [2021-03-24 11:20:17,009 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 161 selfloop transitions, 67 changer transitions 15/253 dead transitions. [2021-03-24 11:20:17,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 253 transitions, 4009 flow [2021-03-24 11:20:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:20:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:20:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2738 transitions. [2021-03-24 11:20:17,011 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49244604316546764 [2021-03-24 11:20:17,011 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2738 transitions. [2021-03-24 11:20:17,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2738 transitions. [2021-03-24 11:20:17,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:17,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2738 transitions. [2021-03-24 11:20:17,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.9) internal successors, (2738), 20 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:20:17,015 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 11:20:17,015 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 11:20:17,015 INFO L185 Difference]: Start difference. First operand has 238 places, 234 transitions, 3328 flow. Second operand 20 states and 2738 transitions. [2021-03-24 11:20:17,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 253 transitions, 4009 flow [2021-03-24 11:20:17,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 253 transitions, 3836 flow, removed 25 selfloop flow, removed 13 redundant places. [2021-03-24 11:20:17,059 INFO L241 Difference]: Finished difference. Result has 243 places, 227 transitions, 3179 flow [2021-03-24 11:20:17,059 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3160, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3179, PETRI_PLACES=243, PETRI_TRANSITIONS=227} [2021-03-24 11:20:17,059 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 177 predicate places. [2021-03-24 11:20:17,059 INFO L480 AbstractCegarLoop]: Abstraction has has 243 places, 227 transitions, 3179 flow [2021-03-24 11:20:17,060 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 11:20:17,060 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:17,060 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 11:20:17,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-24 11:20:17,060 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 11:20:17,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:17,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1686519749, now seen corresponding path program 92 times [2021-03-24 11:20:17,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:17,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803192327] [2021-03-24 11:20:17,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:17,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:17,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:17,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:17,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:17,124 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:17,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:17,147 INFO L142 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size [2021-03-24 11:20:17,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:17,173 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:17,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:20:17,213 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-24 11:20:17,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:20:17,262 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:20:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:17,282 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:20:17,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:17,304 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:20:17,306 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:20:17,343 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:20:17,344 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:20:17,377 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:20:17,378 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:20:17,413 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:20:17,413 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:20:17,448 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:20:17,449 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 11:20:17,486 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:20:17,487 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:20:17,531 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 11:20:17,531 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 11:20:17,583 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:20:17,583 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:20:17,602 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.9 percent of original size [2021-03-24 11:20:17,602 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:20:17,660 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:20:17,661 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:20:17,705 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 11:20:17,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:17,734 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:20:17,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:17,756 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:20:17,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:17,757 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:20:17,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:17,785 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:20:17,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:17,815 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:20:17,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:17,843 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:17,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:17,869 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 11:20:17,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803192327] [2021-03-24 11:20:17,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:17,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:17,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480512064] [2021-03-24 11:20:17,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:17,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:17,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:17,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:17,871 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:17,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 227 transitions, 3179 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 11:20:17,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:17,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:17,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:19,061 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-24 11:20:19,247 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-03-24 11:20:19,861 INFO L129 PetriNetUnfolder]: 336/1301 cut-off events. [2021-03-24 11:20:19,861 INFO L130 PetriNetUnfolder]: For 12283/12289 co-relation queries the response was YES. [2021-03-24 11:20:19,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7881 conditions, 1301 events. 336/1301 cut-off events. For 12283/12289 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10872 event pairs, 208 based on Foata normal form. 4/1293 useless extension candidates. Maximal degree in co-relation 7800. Up to 1025 conditions per place. [2021-03-24 11:20:19,872 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 163 selfloop transitions, 51 changer transitions 26/250 dead transitions. [2021-03-24 11:20:19,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 250 transitions, 3896 flow [2021-03-24 11:20:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:19,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2021-03-24 11:20:19,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 11:20:19,874 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2466 transitions. [2021-03-24 11:20:19,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2466 transitions. [2021-03-24 11:20:19,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:19,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2466 transitions. [2021-03-24 11:20:19,876 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 11:20:19,878 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 11:20:19,878 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 11:20:19,878 INFO L185 Difference]: Start difference. First operand has 243 places, 227 transitions, 3179 flow. Second operand 18 states and 2466 transitions. [2021-03-24 11:20:19,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 250 transitions, 3896 flow [2021-03-24 11:20:19,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 250 transitions, 3723 flow, removed 13 selfloop flow, removed 22 redundant places. [2021-03-24 11:20:19,933 INFO L241 Difference]: Finished difference. Result has 240 places, 221 transitions, 3031 flow [2021-03-24 11:20:19,934 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3014, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3031, PETRI_PLACES=240, PETRI_TRANSITIONS=221} [2021-03-24 11:20:19,934 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 174 predicate places. [2021-03-24 11:20:19,934 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 221 transitions, 3031 flow [2021-03-24 11:20:19,934 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 11:20:19,934 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:19,934 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 11:20:19,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-24 11:20:19,935 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 11:20:19,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:19,935 INFO L82 PathProgramCache]: Analyzing trace with hash -74606549, now seen corresponding path program 93 times [2021-03-24 11:20:19,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:19,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365352968] [2021-03-24 11:20:19,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:20,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:20,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:20,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:20,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:20,074 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:20,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:20,098 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:20:20,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:20:20,145 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:20:20,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:20:20,192 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:20:20,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:20:20,235 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:20:20,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:20:20,255 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:20:20,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:20,271 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:20:20,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:20:20,288 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:20:20,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:20,310 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:20:20,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:20,328 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:20:20,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:20,347 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-24 11:20:20,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:20:20,369 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:20:20,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:20,397 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:20:20,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:20:20,414 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:20:20,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:20,440 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:20:20,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:20,467 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:20:20,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:20:20,496 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:20:20,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:20:20,521 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:20:20,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:20,547 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:20:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:20:20,564 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:20:20,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:20:20,587 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:20:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:20:20,612 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:20:20,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:20:20,635 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:20:20,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:20:20,636 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:20:20,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:20:20,657 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 11:20:20,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365352968] [2021-03-24 11:20:20,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:20,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:20:20,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816233880] [2021-03-24 11:20:20,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:20:20,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:20,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:20:20,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:20:20,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:20:20,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 221 transitions, 3031 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 11:20:20,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:20,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:20:20,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:21,736 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:20:22,057 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 11:20:22,285 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:20:22,750 INFO L129 PetriNetUnfolder]: 321/1254 cut-off events. [2021-03-24 11:20:22,750 INFO L130 PetriNetUnfolder]: For 11173/11179 co-relation queries the response was YES. [2021-03-24 11:20:22,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7499 conditions, 1254 events. 321/1254 cut-off events. For 11173/11179 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10427 event pairs, 201 based on Foata normal form. 4/1246 useless extension candidates. Maximal degree in co-relation 7417. Up to 953 conditions per place. [2021-03-24 11:20:22,761 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 165 selfloop transitions, 49 changer transitions 27/247 dead transitions. [2021-03-24 11:20:22,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 247 transitions, 3809 flow [2021-03-24 11:20:22,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:22,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1606 transitions. [2021-03-24 11:20:22,763 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3209432454036771 [2021-03-24 11:20:22,763 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1606 transitions. [2021-03-24 11:20:22,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1606 transitions. [2021-03-24 11:20:22,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:22,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1606 transitions. [2021-03-24 11:20:22,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.22222222222223) internal successors, (1606), 18 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:20:22,766 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 11:20:22,766 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 11:20:22,766 INFO L185 Difference]: Start difference. First operand has 240 places, 221 transitions, 3031 flow. Second operand 18 states and 1606 transitions. [2021-03-24 11:20:22,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 247 transitions, 3809 flow [2021-03-24 11:20:22,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 247 transitions, 3681 flow, removed 10 selfloop flow, removed 17 redundant places. [2021-03-24 11:20:22,811 INFO L241 Difference]: Finished difference. Result has 238 places, 216 transitions, 2965 flow [2021-03-24 11:20:22,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2907, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2965, PETRI_PLACES=238, PETRI_TRANSITIONS=216} [2021-03-24 11:20:22,812 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 172 predicate places. [2021-03-24 11:20:22,812 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 216 transitions, 2965 flow [2021-03-24 11:20:22,812 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 11:20:22,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:22,812 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 11:20:22,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-24 11:20:22,812 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 11:20:22,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:22,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1087179925, now seen corresponding path program 94 times [2021-03-24 11:20:22,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:22,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806260164] [2021-03-24 11:20:22,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:22,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:22,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:22,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:22,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:22,874 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:22,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:22,901 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:22,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:22,936 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:22,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:23,007 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:23,008 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:23,067 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:23,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:23,088 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:23,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:23,110 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:23,111 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:23,150 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:23,150 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:23,184 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:23,185 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:23,220 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:23,221 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:23,263 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:23,264 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:23,310 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:23,311 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:23,329 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:23,329 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:23,371 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:20:23,372 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:20:23,415 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:20:23,415 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:20:23,462 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:23,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:23,492 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:20:23,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:23,525 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:23,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:23,550 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:23,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:23,582 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:23,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:23,616 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:23,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:23,647 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:23,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:23,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:23,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:23,678 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 11:20:23,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806260164] [2021-03-24 11:20:23,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:23,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:23,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162801772] [2021-03-24 11:20:23,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:23,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:23,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:23,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:23,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:23,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 216 transitions, 2965 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 11:20:23,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:23,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:23,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:25,369 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:20:25,769 INFO L129 PetriNetUnfolder]: 317/1235 cut-off events. [2021-03-24 11:20:25,769 INFO L130 PetriNetUnfolder]: For 10810/10816 co-relation queries the response was YES. [2021-03-24 11:20:25,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7290 conditions, 1235 events. 317/1235 cut-off events. For 10810/10816 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10239 event pairs, 199 based on Foata normal form. 4/1227 useless extension candidates. Maximal degree in co-relation 7210. Up to 954 conditions per place. [2021-03-24 11:20:25,778 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 157 selfloop transitions, 54 changer transitions 19/240 dead transitions. [2021-03-24 11:20:25,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 240 transitions, 3679 flow [2021-03-24 11:20:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2021-03-24 11:20:25,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4926059152677858 [2021-03-24 11:20:25,781 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2021-03-24 11:20:25,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2021-03-24 11:20:25,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:25,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2021-03-24 11:20:25,782 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 11:20:25,784 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 11:20:25,784 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 11:20:25,784 INFO L185 Difference]: Start difference. First operand has 238 places, 216 transitions, 2965 flow. Second operand 18 states and 2465 transitions. [2021-03-24 11:20:25,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 240 transitions, 3679 flow [2021-03-24 11:20:25,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 240 transitions, 3534 flow, removed 7 selfloop flow, removed 19 redundant places. [2021-03-24 11:20:25,820 INFO L241 Difference]: Finished difference. Result has 233 places, 218 transitions, 2986 flow [2021-03-24 11:20:25,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2836, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2986, PETRI_PLACES=233, PETRI_TRANSITIONS=218} [2021-03-24 11:20:25,820 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 167 predicate places. [2021-03-24 11:20:25,820 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 218 transitions, 2986 flow [2021-03-24 11:20:25,820 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 11:20:25,820 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:25,820 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 11:20:25,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-24 11:20:25,820 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 11:20:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:25,821 INFO L82 PathProgramCache]: Analyzing trace with hash 96907695, now seen corresponding path program 95 times [2021-03-24 11:20:25,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:25,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959817552] [2021-03-24 11:20:25,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:25,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:25,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:25,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:25,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:25,905 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:25,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:25,930 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:25,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:25,966 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:25,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:26,017 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:26,018 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:26,080 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:26,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:26,103 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:26,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:26,123 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:26,124 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:26,160 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:26,161 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:26,193 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:26,194 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:26,227 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:26,228 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:26,267 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:26,267 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:26,310 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:26,311 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:26,327 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:26,328 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:26,365 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:26,366 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:26,410 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:20:26,411 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:20:26,456 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:26,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:26,488 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:20:26,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:26,524 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:26,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:26,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:26,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:26,576 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:26,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:26,607 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:26,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:26,636 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:26,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:26,637 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:26,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:26,665 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 11:20:26,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959817552] [2021-03-24 11:20:26,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:26,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:26,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623727416] [2021-03-24 11:20:26,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:26,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:26,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:26,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:26,667 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:26,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 218 transitions, 2986 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 11:20:26,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:26,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:26,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:27,494 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:20:27,792 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:20:28,355 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 11:20:28,578 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:20:28,995 INFO L129 PetriNetUnfolder]: 334/1282 cut-off events. [2021-03-24 11:20:28,995 INFO L130 PetriNetUnfolder]: For 11422/11428 co-relation queries the response was YES. [2021-03-24 11:20:29,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7626 conditions, 1282 events. 334/1282 cut-off events. For 11422/11428 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10637 event pairs, 199 based on Foata normal form. 4/1273 useless extension candidates. Maximal degree in co-relation 7548. Up to 958 conditions per place. [2021-03-24 11:20:29,005 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 166 selfloop transitions, 59 changer transitions 21/256 dead transitions. [2021-03-24 11:20:29,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 256 transitions, 3911 flow [2021-03-24 11:20:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:29,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2021-03-24 11:20:29,007 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4944044764188649 [2021-03-24 11:20:29,007 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2474 transitions. [2021-03-24 11:20:29,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2474 transitions. [2021-03-24 11:20:29,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:29,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2474 transitions. [2021-03-24 11:20:29,008 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 11:20:29,010 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 11:20:29,010 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 11:20:29,010 INFO L185 Difference]: Start difference. First operand has 233 places, 218 transitions, 2986 flow. Second operand 18 states and 2474 transitions. [2021-03-24 11:20:29,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 256 transitions, 3911 flow [2021-03-24 11:20:29,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 256 transitions, 3793 flow, removed 12 selfloop flow, removed 13 redundant places. [2021-03-24 11:20:29,048 INFO L241 Difference]: Finished difference. Result has 236 places, 223 transitions, 3095 flow [2021-03-24 11:20:29,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2882, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3095, PETRI_PLACES=236, PETRI_TRANSITIONS=223} [2021-03-24 11:20:29,048 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 170 predicate places. [2021-03-24 11:20:29,048 INFO L480 AbstractCegarLoop]: Abstraction has has 236 places, 223 transitions, 3095 flow [2021-03-24 11:20:29,048 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 11:20:29,049 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:29,049 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 11:20:29,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-24 11:20:29,049 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 11:20:29,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:29,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1585406495, now seen corresponding path program 96 times [2021-03-24 11:20:29,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:29,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489335882] [2021-03-24 11:20:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:29,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:29,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:29,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:29,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:29,105 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:29,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:29,129 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:29,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:29,162 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:29,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:29,210 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:29,211 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:29,269 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:29,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:29,289 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:29,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:29,309 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:29,309 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:29,347 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:29,347 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:29,380 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:29,381 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:29,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:29,415 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:29,452 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:29,452 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:29,495 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:29,496 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:29,513 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:29,513 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:29,552 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:20:29,553 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:20:29,593 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:20:29,594 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:20:29,637 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:29,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:29,666 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:20:29,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:29,697 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:29,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:29,719 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:29,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:29,747 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:29,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:29,778 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:29,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:29,807 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:29,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:29,807 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:29,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:29,834 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 11:20:29,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489335882] [2021-03-24 11:20:29,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:29,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:29,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651355171] [2021-03-24 11:20:29,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:29,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:29,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:29,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:29,836 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:29,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 223 transitions, 3095 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 11:20:29,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:29,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:29,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:30,666 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:20:31,006 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:20:31,172 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:20:31,683 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:20:32,091 INFO L129 PetriNetUnfolder]: 329/1277 cut-off events. [2021-03-24 11:20:32,092 INFO L130 PetriNetUnfolder]: For 11683/11689 co-relation queries the response was YES. [2021-03-24 11:20:32,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7663 conditions, 1277 events. 329/1277 cut-off events. For 11683/11689 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10667 event pairs, 206 based on Foata normal form. 4/1269 useless extension candidates. Maximal degree in co-relation 7584. Up to 1018 conditions per place. [2021-03-24 11:20:32,101 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 166 selfloop transitions, 48 changer transitions 19/243 dead transitions. [2021-03-24 11:20:32,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 243 transitions, 3778 flow [2021-03-24 11:20:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:32,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:32,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2462 transitions. [2021-03-24 11:20:32,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4920063948840927 [2021-03-24 11:20:32,104 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2462 transitions. [2021-03-24 11:20:32,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2462 transitions. [2021-03-24 11:20:32,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:32,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2462 transitions. [2021-03-24 11:20:32,105 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 11:20:32,107 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 11:20:32,107 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 11:20:32,107 INFO L185 Difference]: Start difference. First operand has 236 places, 223 transitions, 3095 flow. Second operand 18 states and 2462 transitions. [2021-03-24 11:20:32,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 243 transitions, 3778 flow [2021-03-24 11:20:32,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 243 transitions, 3666 flow, removed 7 selfloop flow, removed 13 redundant places. [2021-03-24 11:20:32,148 INFO L241 Difference]: Finished difference. Result has 241 places, 222 transitions, 3085 flow [2021-03-24 11:20:32,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2989, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3085, PETRI_PLACES=241, PETRI_TRANSITIONS=222} [2021-03-24 11:20:32,149 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 175 predicate places. [2021-03-24 11:20:32,149 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 222 transitions, 3085 flow [2021-03-24 11:20:32,149 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 11:20:32,149 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:32,149 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 11:20:32,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-24 11:20:32,149 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 11:20:32,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:32,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1527095319, now seen corresponding path program 97 times [2021-03-24 11:20:32,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:32,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360076234] [2021-03-24 11:20:32,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:32,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:32,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:32,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:32,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:32,212 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:32,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:32,236 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:20:32,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:20:32,268 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 11:20:32,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:20:32,315 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:20:32,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:20:32,367 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:20:32,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:32,387 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:20:32,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:32,407 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:20:32,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:20:32,431 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:20:32,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:32,454 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:20:32,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:32,477 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:20:32,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:20:32,505 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:20:32,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:20:32,537 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:20:32,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:32,555 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:20:32,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:32,585 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:20:32,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:32,617 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:20:32,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:20:32,647 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:20:32,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:32,678 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:20:32,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:32,699 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:20:32,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:20:32,728 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:20:32,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:32,758 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:20:32,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:32,812 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:20:32,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:32,841 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:20:32,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:32,842 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:32,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:32,869 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 11:20:32,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360076234] [2021-03-24 11:20:32,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:32,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:32,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376714231] [2021-03-24 11:20:32,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:32,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:32,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:32,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:32,871 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:32,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 222 transitions, 3085 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 11:20:32,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:32,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:32,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:33,694 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:20:33,989 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:20:35,200 INFO L129 PetriNetUnfolder]: 328/1276 cut-off events. [2021-03-24 11:20:35,200 INFO L130 PetriNetUnfolder]: For 12105/12111 co-relation queries the response was YES. [2021-03-24 11:20:35,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7723 conditions, 1276 events. 328/1276 cut-off events. For 12105/12111 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10651 event pairs, 198 based on Foata normal form. 4/1268 useless extension candidates. Maximal degree in co-relation 7642. Up to 978 conditions per place. [2021-03-24 11:20:35,210 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 166 selfloop transitions, 61 changer transitions 15/252 dead transitions. [2021-03-24 11:20:35,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 252 transitions, 3931 flow [2021-03-24 11:20:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:20:35,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:20:35,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2601 transitions. [2021-03-24 11:20:35,212 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4924271109428247 [2021-03-24 11:20:35,212 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2601 transitions. [2021-03-24 11:20:35,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2601 transitions. [2021-03-24 11:20:35,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:35,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2601 transitions. [2021-03-24 11:20:35,214 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 11:20:35,215 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 11:20:35,216 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 11:20:35,216 INFO L185 Difference]: Start difference. First operand has 241 places, 222 transitions, 3085 flow. Second operand 19 states and 2601 transitions. [2021-03-24 11:20:35,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 252 transitions, 3931 flow [2021-03-24 11:20:35,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 252 transitions, 3819 flow, removed 8 selfloop flow, removed 14 redundant places. [2021-03-24 11:20:35,255 INFO L241 Difference]: Finished difference. Result has 244 places, 227 transitions, 3213 flow [2021-03-24 11:20:35,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2977, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3213, PETRI_PLACES=244, PETRI_TRANSITIONS=227} [2021-03-24 11:20:35,255 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 178 predicate places. [2021-03-24 11:20:35,256 INFO L480 AbstractCegarLoop]: Abstraction has has 244 places, 227 transitions, 3213 flow [2021-03-24 11:20:35,256 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 11:20:35,256 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:35,256 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 11:20:35,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-24 11:20:35,256 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 11:20:35,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:35,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1755126611, now seen corresponding path program 98 times [2021-03-24 11:20:35,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:35,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592215378] [2021-03-24 11:20:35,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:35,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:35,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:35,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:35,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:35,312 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:35,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:35,335 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:35,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:35,367 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:35,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:35,413 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:35,414 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:35,470 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:35,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:35,490 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:35,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:35,511 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:35,511 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:35,548 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:35,548 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:35,581 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:35,581 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:35,615 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:35,615 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:35,657 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:35,657 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:35,703 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:35,703 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:35,720 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:35,721 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:35,761 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:35,761 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:35,805 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:20:35,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:20:35,837 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:20:35,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:35,871 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:20:35,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:35,892 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:35,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:35,921 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:35,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:35,950 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:35,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:35,984 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:35,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:36,017 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:36,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:36,017 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:36,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:36,046 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 11:20:36,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592215378] [2021-03-24 11:20:36,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:36,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:36,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938318591] [2021-03-24 11:20:36,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:36,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:36,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:36,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:36,047 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:36,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 227 transitions, 3213 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 11:20:36,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:36,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:36,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:36,873 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:20:37,156 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:20:37,853 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:20:38,279 INFO L129 PetriNetUnfolder]: 311/1240 cut-off events. [2021-03-24 11:20:38,279 INFO L130 PetriNetUnfolder]: For 12768/12780 co-relation queries the response was YES. [2021-03-24 11:20:38,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7676 conditions, 1240 events. 311/1240 cut-off events. For 12768/12780 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10365 event pairs, 202 based on Foata normal form. 8/1235 useless extension candidates. Maximal degree in co-relation 7594. Up to 955 conditions per place. [2021-03-24 11:20:38,288 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 164 selfloop transitions, 58 changer transitions 11/243 dead transitions. [2021-03-24 11:20:38,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 243 transitions, 3860 flow [2021-03-24 11:20:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:38,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:38,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 11:20:38,290 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 11:20:38,290 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 11:20:38,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 11:20:38,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:38,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 11:20:38,291 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 11:20:38,293 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 11:20:38,293 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 11:20:38,293 INFO L185 Difference]: Start difference. First operand has 244 places, 227 transitions, 3213 flow. Second operand 18 states and 2463 transitions. [2021-03-24 11:20:38,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 243 transitions, 3860 flow [2021-03-24 11:20:38,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 243 transitions, 3693 flow, removed 27 selfloop flow, removed 12 redundant places. [2021-03-24 11:20:38,335 INFO L241 Difference]: Finished difference. Result has 248 places, 225 transitions, 3162 flow [2021-03-24 11:20:38,335 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3067, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3162, PETRI_PLACES=248, PETRI_TRANSITIONS=225} [2021-03-24 11:20:38,335 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 182 predicate places. [2021-03-24 11:20:38,335 INFO L480 AbstractCegarLoop]: Abstraction has has 248 places, 225 transitions, 3162 flow [2021-03-24 11:20:38,335 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 11:20:38,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:38,335 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 11:20:38,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-24 11:20:38,336 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 11:20:38,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:38,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1135814455, now seen corresponding path program 99 times [2021-03-24 11:20:38,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:38,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520572087] [2021-03-24 11:20:38,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:38,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:38,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:38,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:38,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:38,391 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:38,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:38,415 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:38,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:38,447 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:38,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:38,494 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:38,494 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:38,550 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:38,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:38,570 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:38,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:38,590 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:38,590 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:38,626 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:38,626 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:38,658 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:38,659 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:38,693 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:38,693 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:38,733 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:38,734 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:38,777 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:38,778 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:38,795 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:38,795 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:38,835 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:38,835 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:38,878 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:20:38,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:20:38,904 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:20:38,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:20:38,934 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:20:38,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:20:38,955 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:20:38,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:20:38,983 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:38,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:39,012 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:39,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:39,043 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:39,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:39,071 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:39,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:39,072 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:39,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:39,099 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 11:20:39,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520572087] [2021-03-24 11:20:39,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:39,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:39,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135248153] [2021-03-24 11:20:39,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:39,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:39,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:39,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:39,101 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:39,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 225 transitions, 3162 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 11:20:39,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:39,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:39,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:39,887 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-03-24 11:20:40,059 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:20:40,381 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:20:40,767 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-24 11:20:41,559 INFO L129 PetriNetUnfolder]: 306/1213 cut-off events. [2021-03-24 11:20:41,559 INFO L130 PetriNetUnfolder]: For 12355/12361 co-relation queries the response was YES. [2021-03-24 11:20:41,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7490 conditions, 1213 events. 306/1213 cut-off events. For 12355/12361 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 10008 event pairs, 200 based on Foata normal form. 4/1204 useless extension candidates. Maximal degree in co-relation 7407. Up to 948 conditions per place. [2021-03-24 11:20:41,568 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 160 selfloop transitions, 55 changer transitions 13/238 dead transitions. [2021-03-24 11:20:41,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 238 transitions, 3769 flow [2021-03-24 11:20:41,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:20:41,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:20:41,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2596 transitions. [2021-03-24 11:20:41,570 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49148049981067776 [2021-03-24 11:20:41,570 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2596 transitions. [2021-03-24 11:20:41,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2596 transitions. [2021-03-24 11:20:41,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:41,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2596 transitions. [2021-03-24 11:20:41,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.6315789473684) internal successors, (2596), 19 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:20:41,574 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 11:20:41,574 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 11:20:41,574 INFO L185 Difference]: Start difference. First operand has 248 places, 225 transitions, 3162 flow. Second operand 19 states and 2596 transitions. [2021-03-24 11:20:41,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 238 transitions, 3769 flow [2021-03-24 11:20:41,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 238 transitions, 3640 flow, removed 5 selfloop flow, removed 16 redundant places. [2021-03-24 11:20:41,618 INFO L241 Difference]: Finished difference. Result has 248 places, 218 transitions, 3025 flow [2021-03-24 11:20:41,618 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3037, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3025, PETRI_PLACES=248, PETRI_TRANSITIONS=218} [2021-03-24 11:20:41,618 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 182 predicate places. [2021-03-24 11:20:41,618 INFO L480 AbstractCegarLoop]: Abstraction has has 248 places, 218 transitions, 3025 flow [2021-03-24 11:20:41,619 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 11:20:41,619 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:41,619 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 11:20:41,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-24 11:20:41,619 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 11:20:41,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:41,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1988363799, now seen corresponding path program 100 times [2021-03-24 11:20:41,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:41,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688756505] [2021-03-24 11:20:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:41,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:41,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:41,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:41,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:41,687 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:41,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:41,712 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:20:41,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:41,737 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:20:41,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:20:41,779 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:20:41,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:20:41,827 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:20:41,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:41,847 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:20:41,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:41,868 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:20:41,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:20:41,905 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:20:41,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:41,940 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:20:41,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:41,976 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:20:41,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:42,012 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:20:42,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:20:42,057 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:20:42,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:42,074 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 11:20:42,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:20:42,104 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:20:42,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:42,134 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:20:42,135 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:20:42,186 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:20:42,186 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:20:42,238 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:20:42,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:42,271 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:20:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:20:42,297 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:20:42,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:42,298 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:20:42,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:20:42,344 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:20:42,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:42,375 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:20:42,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:42,404 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:42,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:42,432 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 11:20:42,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688756505] [2021-03-24 11:20:42,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:42,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:42,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131993501] [2021-03-24 11:20:42,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:42,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:42,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:42,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:42,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:42,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 218 transitions, 3025 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 11:20:42,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:42,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:42,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:43,287 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:20:43,511 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-24 11:20:43,788 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-03-24 11:20:43,990 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2021-03-24 11:20:44,394 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-03-24 11:20:44,808 INFO L129 PetriNetUnfolder]: 304/1203 cut-off events. [2021-03-24 11:20:44,808 INFO L130 PetriNetUnfolder]: For 11676/11682 co-relation queries the response was YES. [2021-03-24 11:20:44,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7305 conditions, 1203 events. 304/1203 cut-off events. For 11676/11682 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 9954 event pairs, 192 based on Foata normal form. 4/1197 useless extension candidates. Maximal degree in co-relation 7223. Up to 887 conditions per place. [2021-03-24 11:20:44,818 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 156 selfloop transitions, 48 changer transitions 28/242 dead transitions. [2021-03-24 11:20:44,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 242 transitions, 3763 flow [2021-03-24 11:20:44,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:44,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 11:20:44,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 11:20:44,820 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 11:20:44,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 11:20:44,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:44,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 11:20:44,822 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 11:20:44,824 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 11:20:44,824 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 11:20:44,824 INFO L185 Difference]: Start difference. First operand has 248 places, 218 transitions, 3025 flow. Second operand 18 states and 2463 transitions. [2021-03-24 11:20:44,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 242 transitions, 3763 flow [2021-03-24 11:20:44,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 242 transitions, 3635 flow, removed 6 selfloop flow, removed 20 redundant places. [2021-03-24 11:20:44,866 INFO L241 Difference]: Finished difference. Result has 245 places, 212 transitions, 2920 flow [2021-03-24 11:20:44,866 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2899, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2920, PETRI_PLACES=245, PETRI_TRANSITIONS=212} [2021-03-24 11:20:44,866 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 179 predicate places. [2021-03-24 11:20:44,866 INFO L480 AbstractCegarLoop]: Abstraction has has 245 places, 212 transitions, 2920 flow [2021-03-24 11:20:44,867 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 11:20:44,867 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:44,867 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 11:20:44,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-24 11:20:44,867 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 11:20:44,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:44,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1055557807, now seen corresponding path program 101 times [2021-03-24 11:20:44,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:44,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269248818] [2021-03-24 11:20:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:44,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:44,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:44,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:44,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:44,925 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:44,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:44,949 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:44,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:44,982 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:44,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:45,030 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:45,031 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:45,087 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:45,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:45,108 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:45,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:45,129 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:45,129 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:45,167 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:45,167 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:45,201 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:45,201 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:45,236 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:45,237 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:45,277 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:45,278 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:45,292 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:45,293 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:45,329 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:20:45,330 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:20:45,368 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:20:45,369 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:20:45,411 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:45,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:45,437 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:45,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:45,464 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:20:45,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:45,496 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:45,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:45,518 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:45,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:45,547 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:45,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:45,577 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:45,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:45,606 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:45,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:45,607 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:45,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:45,634 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 11:20:45,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269248818] [2021-03-24 11:20:45,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:45,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:45,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896001828] [2021-03-24 11:20:45,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:45,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:45,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:45,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:45,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:45,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 212 transitions, 2920 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 11:20:45,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:45,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:45,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:46,554 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-24 11:20:46,724 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-03-24 11:20:47,065 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-03-24 11:20:47,263 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 11:20:47,514 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 11:20:47,992 INFO L129 PetriNetUnfolder]: 310/1217 cut-off events. [2021-03-24 11:20:47,992 INFO L130 PetriNetUnfolder]: For 11507/11513 co-relation queries the response was YES. [2021-03-24 11:20:47,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7290 conditions, 1217 events. 310/1217 cut-off events. For 11507/11513 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 10067 event pairs, 194 based on Foata normal form. 4/1211 useless extension candidates. Maximal degree in co-relation 7208. Up to 902 conditions per place. [2021-03-24 11:20:48,000 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 164 selfloop transitions, 48 changer transitions 27/249 dead transitions. [2021-03-24 11:20:48,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 249 transitions, 3863 flow [2021-03-24 11:20:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:48,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:48,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2021-03-24 11:20:48,002 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49300559552358114 [2021-03-24 11:20:48,002 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2467 transitions. [2021-03-24 11:20:48,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2467 transitions. [2021-03-24 11:20:48,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:48,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2467 transitions. [2021-03-24 11:20:48,003 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 11:20:48,005 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 11:20:48,005 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 11:20:48,005 INFO L185 Difference]: Start difference. First operand has 245 places, 212 transitions, 2920 flow. Second operand 18 states and 2467 transitions. [2021-03-24 11:20:48,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 249 transitions, 3863 flow [2021-03-24 11:20:48,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 249 transitions, 3737 flow, removed 12 selfloop flow, removed 17 redundant places. [2021-03-24 11:20:48,043 INFO L241 Difference]: Finished difference. Result has 246 places, 213 transitions, 2939 flow [2021-03-24 11:20:48,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2798, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2939, PETRI_PLACES=246, PETRI_TRANSITIONS=213} [2021-03-24 11:20:48,043 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 180 predicate places. [2021-03-24 11:20:48,043 INFO L480 AbstractCegarLoop]: Abstraction has has 246 places, 213 transitions, 2939 flow [2021-03-24 11:20:48,043 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 11:20:48,043 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:48,043 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 11:20:48,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-24 11:20:48,044 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 11:20:48,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:48,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1415903029, now seen corresponding path program 102 times [2021-03-24 11:20:48,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:48,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289731504] [2021-03-24 11:20:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:48,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:48,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:48,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:48,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:48,100 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:48,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:48,124 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:48,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:48,158 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:48,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:48,207 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:48,208 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:48,267 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:48,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:48,288 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:48,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:48,310 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:48,310 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:48,350 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:48,350 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:48,386 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:48,387 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:48,424 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:48,425 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:48,468 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:48,469 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:48,484 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:48,485 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:48,523 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:20:48,523 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:20:48,563 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:20:48,564 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:20:48,606 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:20:48,606 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:20:48,652 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:48,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:48,681 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:20:48,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:48,713 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:48,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:48,736 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:48,765 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:48,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:48,796 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:48,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:48,825 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:48,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:48,826 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:48,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:48,854 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 11:20:48,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289731504] [2021-03-24 11:20:48,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:48,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:48,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799310696] [2021-03-24 11:20:48,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:48,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:48,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:48,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:48,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:48,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 213 transitions, 2939 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 11:20:48,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:48,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:48,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:49,962 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-03-24 11:20:50,158 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:20:50,646 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:20:51,072 INFO L129 PetriNetUnfolder]: 298/1183 cut-off events. [2021-03-24 11:20:51,072 INFO L130 PetriNetUnfolder]: For 11464/11470 co-relation queries the response was YES. [2021-03-24 11:20:51,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7195 conditions, 1183 events. 298/1183 cut-off events. For 11464/11470 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 9797 event pairs, 193 based on Foata normal form. 4/1177 useless extension candidates. Maximal degree in co-relation 7112. Up to 918 conditions per place. [2021-03-24 11:20:51,081 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 158 selfloop transitions, 45 changer transitions 20/233 dead transitions. [2021-03-24 11:20:51,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 233 transitions, 3628 flow [2021-03-24 11:20:51,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2021-03-24 11:20:51,083 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49160671462829736 [2021-03-24 11:20:51,083 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2021-03-24 11:20:51,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2021-03-24 11:20:51,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:51,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2021-03-24 11:20:51,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:20:51,087 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 11:20:51,087 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 11:20:51,087 INFO L185 Difference]: Start difference. First operand has 246 places, 213 transitions, 2939 flow. Second operand 18 states and 2460 transitions. [2021-03-24 11:20:51,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 233 transitions, 3628 flow [2021-03-24 11:20:51,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 233 transitions, 3532 flow, removed 15 selfloop flow, removed 12 redundant places. [2021-03-24 11:20:51,126 INFO L241 Difference]: Finished difference. Result has 250 places, 210 transitions, 2897 flow [2021-03-24 11:20:51,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2850, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2897, PETRI_PLACES=250, PETRI_TRANSITIONS=210} [2021-03-24 11:20:51,126 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 184 predicate places. [2021-03-24 11:20:51,126 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 210 transitions, 2897 flow [2021-03-24 11:20:51,127 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 11:20:51,127 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:51,127 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 11:20:51,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-24 11:20:51,127 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 11:20:51,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:51,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1832867149, now seen corresponding path program 103 times [2021-03-24 11:20:51,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:51,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965228124] [2021-03-24 11:20:51,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:51,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:51,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:51,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:51,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:51,183 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:51,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:51,208 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:51,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:51,243 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:51,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:51,292 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:51,292 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:51,350 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:51,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:51,370 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:51,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:51,390 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:51,390 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:51,429 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:51,429 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:51,463 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:51,464 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:51,499 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:51,500 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:51,543 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:51,543 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:51,558 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:51,559 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:51,596 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:51,596 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:51,636 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:20:51,636 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:20:51,677 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:51,703 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:51,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:51,731 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:20:51,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:51,762 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:51,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:51,784 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:51,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:51,813 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:51,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:51,845 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:51,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:51,874 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:51,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:51,875 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:51,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:51,901 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 11:20:51,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965228124] [2021-03-24 11:20:51,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:51,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:51,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517536405] [2021-03-24 11:20:51,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:51,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:51,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:51,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:51,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:51,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 210 transitions, 2897 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 11:20:51,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:51,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:51,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:52,817 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-24 11:20:53,502 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 11:20:53,738 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 11:20:54,131 INFO L129 PetriNetUnfolder]: 287/1133 cut-off events. [2021-03-24 11:20:54,131 INFO L130 PetriNetUnfolder]: For 10434/10440 co-relation queries the response was YES. [2021-03-24 11:20:54,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6773 conditions, 1133 events. 287/1133 cut-off events. For 10434/10440 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 9210 event pairs, 149 based on Foata normal form. 4/1127 useless extension candidates. Maximal degree in co-relation 6690. Up to 729 conditions per place. [2021-03-24 11:20:54,140 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 160 selfloop transitions, 51 changer transitions 37/258 dead transitions. [2021-03-24 11:20:54,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 258 transitions, 4013 flow [2021-03-24 11:20:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:54,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:54,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 11:20:54,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 11:20:54,142 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 11:20:54,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 11:20:54,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:54,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 11:20:54,143 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 11:20:54,145 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 11:20:54,145 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 11:20:54,145 INFO L185 Difference]: Start difference. First operand has 250 places, 210 transitions, 2897 flow. Second operand 18 states and 2473 transitions. [2021-03-24 11:20:54,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 258 transitions, 4013 flow [2021-03-24 11:20:54,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 258 transitions, 3895 flow, removed 10 selfloop flow, removed 17 redundant places. [2021-03-24 11:20:54,182 INFO L241 Difference]: Finished difference. Result has 249 places, 210 transitions, 2943 flow [2021-03-24 11:20:54,182 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2791, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2943, PETRI_PLACES=249, PETRI_TRANSITIONS=210} [2021-03-24 11:20:54,182 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 183 predicate places. [2021-03-24 11:20:54,182 INFO L480 AbstractCegarLoop]: Abstraction has has 249 places, 210 transitions, 2943 flow [2021-03-24 11:20:54,183 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 11:20:54,183 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:54,183 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 11:20:54,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-24 11:20:54,183 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 11:20:54,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:54,183 INFO L82 PathProgramCache]: Analyzing trace with hash 506955785, now seen corresponding path program 104 times [2021-03-24 11:20:54,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:54,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281692077] [2021-03-24 11:20:54,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:54,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:54,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:54,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:54,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:54,239 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:54,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:54,263 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:20:54,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:54,296 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:20:54,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:20:54,344 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:20:54,345 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:20:54,402 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:20:54,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:54,422 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:20:54,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:54,443 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:20:54,444 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:20:54,482 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:54,482 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:54,516 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:20:54,516 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:20:54,551 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:20:54,552 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:20:54,594 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:54,595 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:54,610 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:20:54,610 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:20:54,648 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:20:54,649 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:20:54,688 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:20:54,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:20:54,714 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:20:54,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:20:54,741 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:20:54,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:20:54,770 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:20:54,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:20:54,803 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:54,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:54,826 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:20:54,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:54,855 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:20:54,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:54,889 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:54,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:54,935 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:20:54,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:54,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:54,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:54,980 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 11:20:54,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281692077] [2021-03-24 11:20:54,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:54,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:54,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313381546] [2021-03-24 11:20:54,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:54,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:54,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:54,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:54,983 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:54,984 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 210 transitions, 2943 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 11:20:54,984 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:54,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:54,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:55,800 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-03-24 11:20:56,699 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 11:20:56,964 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 11:20:57,369 INFO L129 PetriNetUnfolder]: 281/1124 cut-off events. [2021-03-24 11:20:57,369 INFO L130 PetriNetUnfolder]: For 10801/10807 co-relation queries the response was YES. [2021-03-24 11:20:57,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6851 conditions, 1124 events. 281/1124 cut-off events. For 10801/10807 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 9108 event pairs, 145 based on Foata normal form. 4/1116 useless extension candidates. Maximal degree in co-relation 6768. Up to 759 conditions per place. [2021-03-24 11:20:57,378 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 161 selfloop transitions, 57 changer transitions 29/257 dead transitions. [2021-03-24 11:20:57,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 257 transitions, 4066 flow [2021-03-24 11:20:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:20:57,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:20:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2021-03-24 11:20:57,380 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4944044764188649 [2021-03-24 11:20:57,380 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2474 transitions. [2021-03-24 11:20:57,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2474 transitions. [2021-03-24 11:20:57,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:20:57,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2474 transitions. [2021-03-24 11:20:57,382 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 11:20:57,384 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 11:20:57,384 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 11:20:57,384 INFO L185 Difference]: Start difference. First operand has 249 places, 210 transitions, 2943 flow. Second operand 18 states and 2474 transitions. [2021-03-24 11:20:57,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 257 transitions, 4066 flow [2021-03-24 11:20:57,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 257 transitions, 3900 flow, removed 21 selfloop flow, removed 16 redundant places. [2021-03-24 11:20:57,421 INFO L241 Difference]: Finished difference. Result has 250 places, 215 transitions, 3049 flow [2021-03-24 11:20:57,422 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2810, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3049, PETRI_PLACES=250, PETRI_TRANSITIONS=215} [2021-03-24 11:20:57,422 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 184 predicate places. [2021-03-24 11:20:57,422 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 215 transitions, 3049 flow [2021-03-24 11:20:57,422 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 11:20:57,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:20:57,422 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 11:20:57,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-24 11:20:57,422 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 11:20:57,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:20:57,422 INFO L82 PathProgramCache]: Analyzing trace with hash -2127266093, now seen corresponding path program 105 times [2021-03-24 11:20:57,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:20:57,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700220104] [2021-03-24 11:20:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:20:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:20:57,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:57,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:20:57,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:20:57,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:20:57,482 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:20:57,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:57,526 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:20:57,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:20:57,552 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:20:57,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:20:57,591 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:20:57,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:20:57,636 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:20:57,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:20:57,656 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:20:57,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:20:57,677 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:20:57,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:20:57,714 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:20:57,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:57,748 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:20:57,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:57,782 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:20:57,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:20:57,819 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:20:57,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:20:57,864 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:20:57,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:20:57,881 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:20:57,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:20:57,918 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:20:57,919 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 11:20:57,966 INFO L142 QuantifierPusher]: treesize reduction 35, result has 53.3 percent of original size [2021-03-24 11:20:57,967 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:20:58,018 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:20:58,018 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:20:58,071 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:20:58,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:58,102 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:20:58,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:20:58,127 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:20:58,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:20:58,128 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:20:58,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:20:58,173 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:20:58,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:20:58,204 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:20:58,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:20:58,233 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:20:58,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:20:58,261 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 11:20:58,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700220104] [2021-03-24 11:20:58,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:20:58,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:20:58,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353195880] [2021-03-24 11:20:58,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:20:58,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:20:58,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:20:58,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:20:58,263 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:20:58,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 215 transitions, 3049 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 11:20:58,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:20:58,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:20:58,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:20:59,097 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:20:59,352 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-03-24 11:20:59,569 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-03-24 11:20:59,767 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 11:21:00,531 INFO L129 PetriNetUnfolder]: 229/994 cut-off events. [2021-03-24 11:21:00,531 INFO L130 PetriNetUnfolder]: For 9614/9620 co-relation queries the response was YES. [2021-03-24 11:21:00,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6086 conditions, 994 events. 229/994 cut-off events. For 9614/9620 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7900 event pairs, 132 based on Foata normal form. 4/987 useless extension candidates. Maximal degree in co-relation 6004. Up to 719 conditions per place. [2021-03-24 11:21:00,540 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 158 selfloop transitions, 49 changer transitions 19/236 dead transitions. [2021-03-24 11:21:00,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 236 transitions, 3727 flow [2021-03-24 11:21:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2461 transitions. [2021-03-24 11:21:00,542 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49180655475619506 [2021-03-24 11:21:00,542 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2461 transitions. [2021-03-24 11:21:00,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2461 transitions. [2021-03-24 11:21:00,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:00,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2461 transitions. [2021-03-24 11:21:00,544 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 11:21:00,546 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 11:21:00,546 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 11:21:00,546 INFO L185 Difference]: Start difference. First operand has 250 places, 215 transitions, 3049 flow. Second operand 18 states and 2461 transitions. [2021-03-24 11:21:00,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 236 transitions, 3727 flow [2021-03-24 11:21:00,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 236 transitions, 3588 flow, removed 13 selfloop flow, removed 14 redundant places. [2021-03-24 11:21:00,586 INFO L241 Difference]: Finished difference. Result has 253 places, 215 transitions, 3032 flow [2021-03-24 11:21:00,586 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2912, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3032, PETRI_PLACES=253, PETRI_TRANSITIONS=215} [2021-03-24 11:21:00,586 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 187 predicate places. [2021-03-24 11:21:00,586 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 215 transitions, 3032 flow [2021-03-24 11:21:00,587 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 11:21:00,587 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:00,587 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 11:21:00,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-24 11:21:00,587 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 11:21:00,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:00,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1930001737, now seen corresponding path program 106 times [2021-03-24 11:21:00,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:00,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032562941] [2021-03-24 11:21:00,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:00,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:00,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:00,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:00,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:00,652 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:00,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:00,674 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:00,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:00,703 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:00,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:00,746 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:00,747 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:00,797 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:00,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:00,815 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:00,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:00,834 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:00,835 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:00,869 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:00,869 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:00,900 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:00,900 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:00,932 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:00,932 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:00,969 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:00,970 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:00,983 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:00,984 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:01,019 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:01,019 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:01,056 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:21:01,057 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 11:21:01,094 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:21:01,095 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:21:01,136 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:21:01,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:21:01,166 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:21:01,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:01,195 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:01,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:01,216 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:01,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:01,243 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:01,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:01,273 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:01,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:01,299 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:01,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:01,300 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:01,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:01,325 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 11:21:01,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032562941] [2021-03-24 11:21:01,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:01,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:01,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930102172] [2021-03-24 11:21:01,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:01,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:01,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:01,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:01,327 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:01,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 215 transitions, 3032 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 11:21:01,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:01,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:01,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:02,238 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-24 11:21:02,426 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:02,598 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:21:03,115 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:21:03,462 INFO L129 PetriNetUnfolder]: 217/958 cut-off events. [2021-03-24 11:21:03,463 INFO L130 PetriNetUnfolder]: For 9482/9496 co-relation queries the response was YES. [2021-03-24 11:21:03,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5904 conditions, 958 events. 217/958 cut-off events. For 9482/9496 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 7560 event pairs, 133 based on Foata normal form. 4/951 useless extension candidates. Maximal degree in co-relation 5822. Up to 725 conditions per place. [2021-03-24 11:21:03,470 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 161 selfloop transitions, 44 changer transitions 13/228 dead transitions. [2021-03-24 11:21:03,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 228 transitions, 3627 flow [2021-03-24 11:21:03,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2454 transitions. [2021-03-24 11:21:03,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4904076738609113 [2021-03-24 11:21:03,472 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2454 transitions. [2021-03-24 11:21:03,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2454 transitions. [2021-03-24 11:21:03,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:03,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2454 transitions. [2021-03-24 11:21:03,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.33333333333334) internal successors, (2454), 18 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:21:03,475 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 11:21:03,475 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 11:21:03,475 INFO L185 Difference]: Start difference. First operand has 253 places, 215 transitions, 3032 flow. Second operand 18 states and 2454 transitions. [2021-03-24 11:21:03,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 228 transitions, 3627 flow [2021-03-24 11:21:03,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 228 transitions, 3525 flow, removed 7 selfloop flow, removed 15 redundant places. [2021-03-24 11:21:03,511 INFO L241 Difference]: Finished difference. Result has 254 places, 213 transitions, 3011 flow [2021-03-24 11:21:03,511 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2932, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3011, PETRI_PLACES=254, PETRI_TRANSITIONS=213} [2021-03-24 11:21:03,511 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 188 predicate places. [2021-03-24 11:21:03,511 INFO L480 AbstractCegarLoop]: Abstraction has has 254 places, 213 transitions, 3011 flow [2021-03-24 11:21:03,511 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 11:21:03,511 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:03,512 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 11:21:03,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-24 11:21:03,512 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 11:21:03,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:03,512 INFO L82 PathProgramCache]: Analyzing trace with hash 961552843, now seen corresponding path program 107 times [2021-03-24 11:21:03,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:03,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522058191] [2021-03-24 11:21:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:03,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:03,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:03,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:03,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:03,593 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:03,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:03,625 INFO L142 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size [2021-03-24 11:21:03,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:03,673 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.0 percent of original size [2021-03-24 11:21:03,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:21:03,716 INFO L142 QuantifierPusher]: treesize reduction 31, result has 65.2 percent of original size [2021-03-24 11:21:03,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:21:03,766 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:21:03,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:03,787 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:21:03,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:03,808 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:21:03,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:21:03,847 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-03-24 11:21:03,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:03,880 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-03-24 11:21:03,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:03,914 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.8 percent of original size [2021-03-24 11:21:03,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:03,949 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.9 percent of original size [2021-03-24 11:21:03,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:21:03,991 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.2 percent of original size [2021-03-24 11:21:03,991 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-24 11:21:04,034 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.2 percent of original size [2021-03-24 11:21:04,034 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-24 11:21:04,079 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 11:21:04,080 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:21:04,101 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.9 percent of original size [2021-03-24 11:21:04,102 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:21:04,164 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 11:21:04,164 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:21:04,230 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 11:21:04,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:04,260 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:21:04,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:04,284 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:04,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:04,285 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:21:04,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:04,313 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:04,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:04,344 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:21:04,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:04,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:04,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:04,399 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 11:21:04,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522058191] [2021-03-24 11:21:04,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:04,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:04,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972054750] [2021-03-24 11:21:04,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:04,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:04,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:04,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:04,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:04,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 213 transitions, 3011 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 11:21:04,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:04,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:04,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:05,237 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:21:05,456 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-03-24 11:21:05,659 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 11:21:05,976 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 11:21:06,686 INFO L129 PetriNetUnfolder]: 217/952 cut-off events. [2021-03-24 11:21:06,686 INFO L130 PetriNetUnfolder]: For 9082/9088 co-relation queries the response was YES. [2021-03-24 11:21:06,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5806 conditions, 952 events. 217/952 cut-off events. For 9082/9088 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7493 event pairs, 123 based on Foata normal form. 4/947 useless extension candidates. Maximal degree in co-relation 5724. Up to 652 conditions per place. [2021-03-24 11:21:06,694 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 147 selfloop transitions, 47 changer transitions 27/231 dead transitions. [2021-03-24 11:21:06,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 231 transitions, 3631 flow [2021-03-24 11:21:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 11:21:06,696 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 11:21:06,696 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 11:21:06,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 11:21:06,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:06,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 11:21:06,698 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 11:21:06,700 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 11:21:06,700 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 11:21:06,700 INFO L185 Difference]: Start difference. First operand has 254 places, 213 transitions, 3011 flow. Second operand 18 states and 2463 transitions. [2021-03-24 11:21:06,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 231 transitions, 3631 flow [2021-03-24 11:21:06,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 231 transitions, 3513 flow, removed 10 selfloop flow, removed 15 redundant places. [2021-03-24 11:21:06,736 INFO L241 Difference]: Finished difference. Result has 250 places, 202 transitions, 2820 flow [2021-03-24 11:21:06,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2895, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2820, PETRI_PLACES=250, PETRI_TRANSITIONS=202} [2021-03-24 11:21:06,736 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 184 predicate places. [2021-03-24 11:21:06,736 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 202 transitions, 2820 flow [2021-03-24 11:21:06,737 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 11:21:06,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:06,737 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 11:21:06,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-24 11:21:06,737 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 11:21:06,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:06,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1676886351, now seen corresponding path program 108 times [2021-03-24 11:21:06,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:06,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448767094] [2021-03-24 11:21:06,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:06,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:06,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:06,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:06,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:06,800 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:06,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:06,824 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:21:06,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:06,850 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:21:06,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:21:06,891 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:21:06,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:21:06,937 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:21:06,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:06,958 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:21:06,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:06,978 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:21:06,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:21:07,014 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:07,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:07,048 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:07,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:07,084 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:07,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:07,121 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:21:07,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:21:07,165 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:21:07,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:07,183 INFO L142 QuantifierPusher]: treesize reduction 35, result has 58.3 percent of original size [2021-03-24 11:21:07,184 INFO L147 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size 33 [2021-03-24 11:21:07,234 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:21:07,235 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 11:21:07,284 INFO L142 QuantifierPusher]: treesize reduction 38, result has 59.1 percent of original size [2021-03-24 11:21:07,285 INFO L147 QuantifierPusher]: treesize reduction 7, result has 87.3 percent of original size 48 [2021-03-24 11:21:07,341 INFO L142 QuantifierPusher]: treesize reduction 30, result has 52.4 percent of original size [2021-03-24 11:21:07,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:21:07,371 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:21:07,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:07,402 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:21:07,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:21:07,426 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:21:07,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:07,427 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:21:07,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:07,493 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:07,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:07,525 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:07,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:07,555 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:07,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:07,583 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 11:21:07,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448767094] [2021-03-24 11:21:07,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:07,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:07,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880729450] [2021-03-24 11:21:07,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:07,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:07,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:07,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:07,585 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:07,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 202 transitions, 2820 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 11:21:07,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:07,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:07,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:08,434 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:21:08,662 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-03-24 11:21:08,926 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-24 11:21:09,548 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-03-24 11:21:09,934 INFO L129 PetriNetUnfolder]: 225/979 cut-off events. [2021-03-24 11:21:09,934 INFO L130 PetriNetUnfolder]: For 9534/9540 co-relation queries the response was YES. [2021-03-24 11:21:09,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6018 conditions, 979 events. 225/979 cut-off events. For 9534/9540 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7792 event pairs, 120 based on Foata normal form. 5/973 useless extension candidates. Maximal degree in co-relation 5938. Up to 663 conditions per place. [2021-03-24 11:21:09,941 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 153 selfloop transitions, 56 changer transitions 19/238 dead transitions. [2021-03-24 11:21:09,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 238 transitions, 3745 flow [2021-03-24 11:21:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:09,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 11:21:09,944 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 11:21:09,944 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 11:21:09,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 11:21:09,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:09,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 11:21:09,945 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 11:21:09,947 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 11:21:09,947 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 11:21:09,947 INFO L185 Difference]: Start difference. First operand has 250 places, 202 transitions, 2820 flow. Second operand 18 states and 2468 transitions. [2021-03-24 11:21:09,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 238 transitions, 3745 flow [2021-03-24 11:21:09,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 238 transitions, 3580 flow, removed 15 selfloop flow, removed 19 redundant places. [2021-03-24 11:21:09,979 INFO L241 Difference]: Finished difference. Result has 243 places, 210 transitions, 2967 flow [2021-03-24 11:21:09,979 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2677, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2967, PETRI_PLACES=243, PETRI_TRANSITIONS=210} [2021-03-24 11:21:09,979 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 177 predicate places. [2021-03-24 11:21:09,979 INFO L480 AbstractCegarLoop]: Abstraction has has 243 places, 210 transitions, 2967 flow [2021-03-24 11:21:09,979 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 11:21:09,979 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:09,979 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 11:21:09,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-24 11:21:09,979 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 11:21:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:09,980 INFO L82 PathProgramCache]: Analyzing trace with hash 522968259, now seen corresponding path program 109 times [2021-03-24 11:21:09,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:09,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985655729] [2021-03-24 11:21:09,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:10,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:10,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:10,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:10,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:10,040 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:10,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:10,065 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:21:10,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:21:10,097 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 11:21:10,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:21:10,143 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:21:10,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:21:10,194 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:21:10,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:10,214 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:21:10,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:10,235 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:21:10,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:21:10,258 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:21:10,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:10,280 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:21:10,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:10,305 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:21:10,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:21:10,334 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:21:10,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:10,350 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:21:10,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:10,378 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:21:10,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:10,407 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:21:10,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:10,434 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:21:10,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:10,462 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:21:10,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:10,494 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:21:10,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:10,513 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:21:10,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:21:10,540 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:21:10,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:10,568 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:10,598 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:10,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:10,625 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:10,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:10,626 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:10,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:10,651 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 11:21:10,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985655729] [2021-03-24 11:21:10,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:10,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:10,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615986282] [2021-03-24 11:21:10,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:10,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:10,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:10,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:10,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:10,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 210 transitions, 2967 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 11:21:10,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:10,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:10,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:11,935 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-24 11:21:12,131 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-24 11:21:12,861 INFO L129 PetriNetUnfolder]: 214/951 cut-off events. [2021-03-24 11:21:12,861 INFO L130 PetriNetUnfolder]: For 9386/9392 co-relation queries the response was YES. [2021-03-24 11:21:12,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5856 conditions, 951 events. 214/951 cut-off events. For 9386/9392 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7501 event pairs, 111 based on Foata normal form. 4/944 useless extension candidates. Maximal degree in co-relation 5778. Up to 620 conditions per place. [2021-03-24 11:21:12,867 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 158 selfloop transitions, 57 changer transitions 17/242 dead transitions. [2021-03-24 11:21:12,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 242 transitions, 3821 flow [2021-03-24 11:21:12,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:21:12,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:21:12,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2599 transitions. [2021-03-24 11:21:12,869 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4920484664899659 [2021-03-24 11:21:12,869 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2599 transitions. [2021-03-24 11:21:12,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2599 transitions. [2021-03-24 11:21:12,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:12,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2599 transitions. [2021-03-24 11:21:12,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.78947368421052) internal successors, (2599), 19 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:21:12,873 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 11:21:12,873 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 11:21:12,873 INFO L185 Difference]: Start difference. First operand has 243 places, 210 transitions, 2967 flow. Second operand 19 states and 2599 transitions. [2021-03-24 11:21:12,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 242 transitions, 3821 flow [2021-03-24 11:21:12,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 242 transitions, 3685 flow, removed 16 selfloop flow, removed 14 redundant places. [2021-03-24 11:21:12,903 INFO L241 Difference]: Finished difference. Result has 249 places, 215 transitions, 3070 flow [2021-03-24 11:21:12,903 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2833, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3070, PETRI_PLACES=249, PETRI_TRANSITIONS=215} [2021-03-24 11:21:12,903 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 183 predicate places. [2021-03-24 11:21:12,903 INFO L480 AbstractCegarLoop]: Abstraction has has 249 places, 215 transitions, 3070 flow [2021-03-24 11:21:12,903 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 11:21:12,903 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:12,903 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 11:21:12,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-24 11:21:12,904 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 11:21:12,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:12,904 INFO L82 PathProgramCache]: Analyzing trace with hash -431593381, now seen corresponding path program 110 times [2021-03-24 11:21:12,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:12,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398053190] [2021-03-24 11:21:12,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:12,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:12,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:12,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:12,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:12,959 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:12,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:12,983 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:13,016 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:13,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:13,063 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:13,063 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:13,118 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:13,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:13,138 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:13,158 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:13,159 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:13,198 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:13,198 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:13,233 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:13,234 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:13,269 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:13,269 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:13,312 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:13,312 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:13,327 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:13,327 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:13,364 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:13,365 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:13,406 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:21:13,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:13,432 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:21:13,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:13,459 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:21:13,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:13,487 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:21:13,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:13,517 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:13,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:13,538 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:13,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:13,567 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:13,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:13,599 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:13,630 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:13,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:13,631 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:13,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:13,660 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 11:21:13,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398053190] [2021-03-24 11:21:13,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:13,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:13,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492031893] [2021-03-24 11:21:13,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:13,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:13,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:13,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:13,662 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:13,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 215 transitions, 3070 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 11:21:13,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:13,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:13,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:14,574 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-24 11:21:15,052 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-24 11:21:15,216 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-03-24 11:21:15,481 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-24 11:21:15,841 INFO L129 PetriNetUnfolder]: 197/913 cut-off events. [2021-03-24 11:21:15,841 INFO L130 PetriNetUnfolder]: For 9610/9616 co-relation queries the response was YES. [2021-03-24 11:21:15,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5747 conditions, 913 events. 197/913 cut-off events. For 9610/9616 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7180 event pairs, 112 based on Foata normal form. 5/907 useless extension candidates. Maximal degree in co-relation 5666. Up to 593 conditions per place. [2021-03-24 11:21:15,848 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 156 selfloop transitions, 54 changer transitions 11/231 dead transitions. [2021-03-24 11:21:15,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 231 transitions, 3688 flow [2021-03-24 11:21:15,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:15,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2021-03-24 11:21:15,851 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49160671462829736 [2021-03-24 11:21:15,851 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2021-03-24 11:21:15,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2021-03-24 11:21:15,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:15,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2021-03-24 11:21:15,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:21:15,854 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 11:21:15,854 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 11:21:15,854 INFO L185 Difference]: Start difference. First operand has 249 places, 215 transitions, 3070 flow. Second operand 18 states and 2460 transitions. [2021-03-24 11:21:15,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 231 transitions, 3688 flow [2021-03-24 11:21:15,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 231 transitions, 3524 flow, removed 31 selfloop flow, removed 12 redundant places. [2021-03-24 11:21:15,889 INFO L241 Difference]: Finished difference. Result has 253 places, 213 transitions, 3012 flow [2021-03-24 11:21:15,889 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2927, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3012, PETRI_PLACES=253, PETRI_TRANSITIONS=213} [2021-03-24 11:21:15,889 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 187 predicate places. [2021-03-24 11:21:15,889 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 213 transitions, 3012 flow [2021-03-24 11:21:15,889 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 11:21:15,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:15,889 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 11:21:15,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-24 11:21:15,889 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 11:21:15,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:15,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1180877939, now seen corresponding path program 111 times [2021-03-24 11:21:15,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:15,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419568283] [2021-03-24 11:21:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:15,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:15,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:15,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:15,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:15,947 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:15,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:15,972 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:15,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:16,005 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:16,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:16,052 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:16,052 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:16,109 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:16,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:16,129 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:16,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:16,150 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:16,150 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:16,188 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:16,188 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:16,223 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:16,223 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:16,259 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:16,260 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:16,303 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:16,304 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:16,319 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:16,320 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:16,357 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:16,358 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:16,398 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:16,398 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:16,441 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:21:16,441 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:21:16,486 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:21:16,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:21:16,517 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:21:16,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:16,548 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:16,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:16,572 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:16,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:16,602 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:16,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:16,634 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:16,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:16,665 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:16,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:16,666 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:16,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:16,694 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 11:21:16,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419568283] [2021-03-24 11:21:16,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:16,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:16,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204649977] [2021-03-24 11:21:16,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:16,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:16,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:16,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:16,696 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:16,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 213 transitions, 3012 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 11:21:16,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:16,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:16,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:17,616 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-24 11:21:17,813 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:18,783 INFO L129 PetriNetUnfolder]: 193/875 cut-off events. [2021-03-24 11:21:18,783 INFO L130 PetriNetUnfolder]: For 8974/8980 co-relation queries the response was YES. [2021-03-24 11:21:18,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5511 conditions, 875 events. 193/875 cut-off events. For 8974/8980 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6739 event pairs, 106 based on Foata normal form. 4/868 useless extension candidates. Maximal degree in co-relation 5429. Up to 634 conditions per place. [2021-03-24 11:21:18,789 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 167 selfloop transitions, 48 changer transitions 11/236 dead transitions. [2021-03-24 11:21:18,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 236 transitions, 3752 flow [2021-03-24 11:21:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2461 transitions. [2021-03-24 11:21:18,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49180655475619506 [2021-03-24 11:21:18,792 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2461 transitions. [2021-03-24 11:21:18,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2461 transitions. [2021-03-24 11:21:18,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:18,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2461 transitions. [2021-03-24 11:21:18,793 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 11:21:18,795 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 11:21:18,795 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 11:21:18,795 INFO L185 Difference]: Start difference. First operand has 253 places, 213 transitions, 3012 flow. Second operand 18 states and 2461 transitions. [2021-03-24 11:21:18,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 236 transitions, 3752 flow [2021-03-24 11:21:18,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 236 transitions, 3624 flow, removed 4 selfloop flow, removed 15 redundant places. [2021-03-24 11:21:18,828 INFO L241 Difference]: Finished difference. Result has 257 places, 217 transitions, 3087 flow [2021-03-24 11:21:18,828 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2894, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3087, PETRI_PLACES=257, PETRI_TRANSITIONS=217} [2021-03-24 11:21:18,828 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 191 predicate places. [2021-03-24 11:21:18,828 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 217 transitions, 3087 flow [2021-03-24 11:21:18,828 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 11:21:18,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:18,829 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 11:21:18,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-24 11:21:18,829 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 11:21:18,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:18,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1994742801, now seen corresponding path program 112 times [2021-03-24 11:21:18,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:18,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464329779] [2021-03-24 11:21:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:18,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:18,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:18,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:18,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:18,890 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:18,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:18,922 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:21:18,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:21:18,977 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 11:21:18,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:21:19,041 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:21:19,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:21:19,094 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:21:19,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:19,114 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:21:19,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:19,133 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:21:19,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:21:19,156 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:21:19,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:19,178 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:21:19,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:19,202 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:21:19,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:21:19,230 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:21:19,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:19,246 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:21:19,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:19,272 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:21:19,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:19,301 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:21:19,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:19,331 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:21:19,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:19,358 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:21:19,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:19,387 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:21:19,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:19,407 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:21:19,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:21:19,434 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:21:19,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:19,464 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:19,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:19,496 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:19,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:19,524 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:19,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:19,525 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:19,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:19,552 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 11:21:19,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464329779] [2021-03-24 11:21:19,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:19,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:19,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495415203] [2021-03-24 11:21:19,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:19,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:19,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:19,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:19,555 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:19,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 217 transitions, 3087 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 11:21:19,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:19,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:19,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:20,476 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-24 11:21:20,680 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:21,712 INFO L129 PetriNetUnfolder]: 191/867 cut-off events. [2021-03-24 11:21:21,713 INFO L130 PetriNetUnfolder]: For 8884/8892 co-relation queries the response was YES. [2021-03-24 11:21:21,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5457 conditions, 867 events. 191/867 cut-off events. For 8884/8892 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6668 event pairs, 102 based on Foata normal form. 4/860 useless extension candidates. Maximal degree in co-relation 5371. Up to 624 conditions per place. [2021-03-24 11:21:21,719 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 167 selfloop transitions, 51 changer transitions 7/235 dead transitions. [2021-03-24 11:21:21,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 235 transitions, 3792 flow [2021-03-24 11:21:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2457 transitions. [2021-03-24 11:21:21,722 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4910071942446043 [2021-03-24 11:21:21,722 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2457 transitions. [2021-03-24 11:21:21,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2457 transitions. [2021-03-24 11:21:21,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:21,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2457 transitions. [2021-03-24 11:21:21,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.5) internal successors, (2457), 18 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:21:21,725 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 11:21:21,725 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 11:21:21,725 INFO L185 Difference]: Start difference. First operand has 257 places, 217 transitions, 3087 flow. Second operand 18 states and 2457 transitions. [2021-03-24 11:21:21,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 235 transitions, 3792 flow [2021-03-24 11:21:21,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 235 transitions, 3678 flow, removed 12 selfloop flow, removed 14 redundant places. [2021-03-24 11:21:21,761 INFO L241 Difference]: Finished difference. Result has 259 places, 220 transitions, 3156 flow [2021-03-24 11:21:21,761 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2981, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3156, PETRI_PLACES=259, PETRI_TRANSITIONS=220} [2021-03-24 11:21:21,761 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 193 predicate places. [2021-03-24 11:21:21,761 INFO L480 AbstractCegarLoop]: Abstraction has has 259 places, 220 transitions, 3156 flow [2021-03-24 11:21:21,762 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 11:21:21,762 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:21,762 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 11:21:21,762 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-24 11:21:21,762 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 11:21:21,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:21,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2096562993, now seen corresponding path program 113 times [2021-03-24 11:21:21,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:21,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984482756] [2021-03-24 11:21:21,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:21,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:21,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:21,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:21,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:21,818 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:21,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:21,842 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:21,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:21,876 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:21,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:21,925 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:21,926 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:21,985 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:21,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:22,006 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:22,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:22,027 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:22,028 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:22,066 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:22,066 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:22,100 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:22,101 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:22,137 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:22,137 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:22,179 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:22,180 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:22,195 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:22,195 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:22,234 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:22,234 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:22,276 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:21:22,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:22,301 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:21:22,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:22,329 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:21:22,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:22,359 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:21:22,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:22,380 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:21:22,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:21:22,408 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:22,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:22,437 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:22,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:22,468 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:22,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:22,514 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:22,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:22,517 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:22,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:22,544 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 11:21:22,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984482756] [2021-03-24 11:21:22,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:22,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:22,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193032252] [2021-03-24 11:21:22,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:22,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:22,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:22,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:22,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:22,547 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 220 transitions, 3156 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 11:21:22,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:22,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:22,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:23,456 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-24 11:21:23,937 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-24 11:21:24,145 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-03-24 11:21:24,316 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-24 11:21:24,788 INFO L129 PetriNetUnfolder]: 187/856 cut-off events. [2021-03-24 11:21:24,788 INFO L130 PetriNetUnfolder]: For 8895/8901 co-relation queries the response was YES. [2021-03-24 11:21:24,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5410 conditions, 856 events. 187/856 cut-off events. For 8895/8901 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6542 event pairs, 105 based on Foata normal form. 4/850 useless extension candidates. Maximal degree in co-relation 5324. Up to 571 conditions per place. [2021-03-24 11:21:24,795 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 158 selfloop transitions, 53 changer transitions 12/233 dead transitions. [2021-03-24 11:21:24,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 233 transitions, 3747 flow [2021-03-24 11:21:24,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:21:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:21:24,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2593 transitions. [2021-03-24 11:21:24,798 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4909125331313896 [2021-03-24 11:21:24,798 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2593 transitions. [2021-03-24 11:21:24,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2593 transitions. [2021-03-24 11:21:24,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:24,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2593 transitions. [2021-03-24 11:21:24,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.47368421052633) internal successors, (2593), 19 states have internal predecessors, (2593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:21:24,801 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 11:21:24,801 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 11:21:24,801 INFO L185 Difference]: Start difference. First operand has 259 places, 220 transitions, 3156 flow. Second operand 19 states and 2593 transitions. [2021-03-24 11:21:24,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 233 transitions, 3747 flow [2021-03-24 11:21:24,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 233 transitions, 3573 flow, removed 31 selfloop flow, removed 15 redundant places. [2021-03-24 11:21:24,837 INFO L241 Difference]: Finished difference. Result has 261 places, 214 transitions, 3005 flow [2021-03-24 11:21:24,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2984, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3005, PETRI_PLACES=261, PETRI_TRANSITIONS=214} [2021-03-24 11:21:24,837 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 195 predicate places. [2021-03-24 11:21:24,837 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 214 transitions, 3005 flow [2021-03-24 11:21:24,837 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 11:21:24,837 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:24,837 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 11:21:24,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-24 11:21:24,837 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 11:21:24,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:24,838 INFO L82 PathProgramCache]: Analyzing trace with hash -141971179, now seen corresponding path program 114 times [2021-03-24 11:21:24,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:24,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352191521] [2021-03-24 11:21:24,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:24,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:24,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:24,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:24,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:24,894 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:24,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:24,918 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:24,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:24,952 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:24,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:25,000 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:25,001 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:25,059 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:25,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:25,079 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:25,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:25,100 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:25,101 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:25,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:25,140 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:25,174 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:25,175 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:25,210 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:25,210 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:25,253 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:25,254 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:25,269 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:25,270 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:25,309 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:25,309 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:25,350 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:25,351 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:25,394 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:21:25,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:25,422 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:21:25,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:25,452 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:21:25,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:25,473 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:21:25,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:21:25,501 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:25,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:25,531 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:25,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:25,563 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:25,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:25,593 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:25,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:25,594 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:25,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:25,622 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 11:21:25,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352191521] [2021-03-24 11:21:25,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:25,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:25,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067604241] [2021-03-24 11:21:25,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:25,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:25,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:25,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:25,624 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:25,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 214 transitions, 3005 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 11:21:25,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:25,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:25,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:26,550 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2021-03-24 11:21:26,735 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:27,380 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 11:21:27,874 INFO L129 PetriNetUnfolder]: 185/846 cut-off events. [2021-03-24 11:21:27,874 INFO L130 PetriNetUnfolder]: For 8358/8364 co-relation queries the response was YES. [2021-03-24 11:21:27,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5241 conditions, 846 events. 185/846 cut-off events. For 8358/8364 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6455 event pairs, 103 based on Foata normal form. 4/840 useless extension candidates. Maximal degree in co-relation 5158. Up to 611 conditions per place. [2021-03-24 11:21:27,879 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 160 selfloop transitions, 51 changer transitions 7/228 dead transitions. [2021-03-24 11:21:27,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 228 transitions, 3601 flow [2021-03-24 11:21:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:21:27,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:21:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2590 transitions. [2021-03-24 11:21:27,881 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49034456645210145 [2021-03-24 11:21:27,881 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2590 transitions. [2021-03-24 11:21:27,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2590 transitions. [2021-03-24 11:21:27,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:27,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2590 transitions. [2021-03-24 11:21:27,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.31578947368422) internal successors, (2590), 19 states have internal predecessors, (2590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:21:27,885 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 11:21:27,885 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 11:21:27,885 INFO L185 Difference]: Start difference. First operand has 261 places, 214 transitions, 3005 flow. Second operand 19 states and 2590 transitions. [2021-03-24 11:21:27,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 228 transitions, 3601 flow [2021-03-24 11:21:27,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 228 transitions, 3468 flow, removed 8 selfloop flow, removed 20 redundant places. [2021-03-24 11:21:27,915 INFO L241 Difference]: Finished difference. Result has 257 places, 214 transitions, 2985 flow [2021-03-24 11:21:27,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2876, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2985, PETRI_PLACES=257, PETRI_TRANSITIONS=214} [2021-03-24 11:21:27,915 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 191 predicate places. [2021-03-24 11:21:27,915 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 214 transitions, 2985 flow [2021-03-24 11:21:27,916 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 11:21:27,916 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:27,916 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 11:21:27,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-24 11:21:27,916 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 11:21:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:27,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1262055051, now seen corresponding path program 115 times [2021-03-24 11:21:27,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:27,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431525783] [2021-03-24 11:21:27,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:27,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:27,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:27,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:27,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:27,971 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:27,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:27,996 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:27,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:28,029 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:28,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:28,077 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:28,078 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:28,135 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:28,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:28,156 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:28,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:28,177 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:28,177 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:28,215 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:28,216 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:28,250 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:28,250 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:28,285 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:28,286 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:28,329 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:28,329 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:28,345 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:28,346 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:28,386 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:28,386 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:28,428 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:28,428 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:28,471 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:21:28,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:28,499 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:21:28,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:28,529 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:21:28,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:28,550 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:28,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:28,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:28,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:28,608 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:28,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:28,639 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:28,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:28,669 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:28,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:28,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:28,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:28,697 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 11:21:28,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431525783] [2021-03-24 11:21:28,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:28,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:28,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371892692] [2021-03-24 11:21:28,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:28,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:28,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:28,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:28,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:28,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 214 transitions, 2985 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 11:21:28,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:28,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:28,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:29,730 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:30,646 INFO L129 PetriNetUnfolder]: 183/826 cut-off events. [2021-03-24 11:21:30,647 INFO L130 PetriNetUnfolder]: For 7985/7991 co-relation queries the response was YES. [2021-03-24 11:21:30,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5132 conditions, 826 events. 183/826 cut-off events. For 7985/7991 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6226 event pairs, 103 based on Foata normal form. 5/821 useless extension candidates. Maximal degree in co-relation 5051. Up to 595 conditions per place. [2021-03-24 11:21:30,653 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 156 selfloop transitions, 44 changer transitions 16/226 dead transitions. [2021-03-24 11:21:30,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 226 transitions, 3544 flow [2021-03-24 11:21:30,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:30,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2456 transitions. [2021-03-24 11:21:30,656 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4908073541167066 [2021-03-24 11:21:30,656 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2456 transitions. [2021-03-24 11:21:30,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2456 transitions. [2021-03-24 11:21:30,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:30,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2456 transitions. [2021-03-24 11:21:30,657 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 11:21:30,659 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 11:21:30,659 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 11:21:30,659 INFO L185 Difference]: Start difference. First operand has 257 places, 214 transitions, 2985 flow. Second operand 18 states and 2456 transitions. [2021-03-24 11:21:30,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 226 transitions, 3544 flow [2021-03-24 11:21:30,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 226 transitions, 3432 flow, removed 2 selfloop flow, removed 16 redundant places. [2021-03-24 11:21:30,691 INFO L241 Difference]: Finished difference. Result has 257 places, 206 transitions, 2844 flow [2021-03-24 11:21:30,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2879, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2844, PETRI_PLACES=257, PETRI_TRANSITIONS=206} [2021-03-24 11:21:30,692 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 191 predicate places. [2021-03-24 11:21:30,692 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 206 transitions, 2844 flow [2021-03-24 11:21:30,692 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 11:21:30,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:30,692 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 11:21:30,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-24 11:21:30,692 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 11:21:30,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:30,693 INFO L82 PathProgramCache]: Analyzing trace with hash 928346105, now seen corresponding path program 116 times [2021-03-24 11:21:30,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:30,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996356135] [2021-03-24 11:21:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:30,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:30,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:30,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:30,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:30,761 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:30,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:30,782 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:21:30,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:30,805 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:21:30,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:21:30,843 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:21:30,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:21:30,886 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:21:30,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:30,905 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:21:30,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:30,924 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:21:30,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:21:30,959 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:30,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:30,991 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:30,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:31,024 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:31,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:31,057 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:21:31,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:21:31,098 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:21:31,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:31,114 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:21:31,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:21:31,151 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 11:21:31,151 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 11:21:31,197 INFO L142 QuantifierPusher]: treesize reduction 38, result has 59.1 percent of original size [2021-03-24 11:21:31,197 INFO L147 QuantifierPusher]: treesize reduction 7, result has 87.3 percent of original size 48 [2021-03-24 11:21:31,252 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.3 percent of original size [2021-03-24 11:21:31,253 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-24 11:21:31,301 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:21:31,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:31,330 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:21:31,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:21:31,354 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:21:31,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:31,355 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:21:31,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:31,398 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:31,427 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:31,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:31,453 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:31,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:31,479 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 11:21:31,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996356135] [2021-03-24 11:21:31,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:31,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:31,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629169618] [2021-03-24 11:21:31,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:31,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:31,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:31,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:31,481 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:31,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 206 transitions, 2844 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 11:21:31,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:31,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:31,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:32,270 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:21:32,496 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-03-24 11:21:32,683 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-03-24 11:21:33,320 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-03-24 11:21:33,708 INFO L129 PetriNetUnfolder]: 211/890 cut-off events. [2021-03-24 11:21:33,708 INFO L130 PetriNetUnfolder]: For 8871/8877 co-relation queries the response was YES. [2021-03-24 11:21:33,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5585 conditions, 890 events. 211/890 cut-off events. For 8871/8877 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6748 event pairs, 97 based on Foata normal form. 5/883 useless extension candidates. Maximal degree in co-relation 5503. Up to 590 conditions per place. [2021-03-24 11:21:33,715 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 158 selfloop transitions, 57 changer transitions 19/244 dead transitions. [2021-03-24 11:21:33,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 244 transitions, 3817 flow [2021-03-24 11:21:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:33,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:33,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2021-03-24 11:21:33,717 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 11:21:33,717 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2466 transitions. [2021-03-24 11:21:33,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2466 transitions. [2021-03-24 11:21:33,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:33,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2466 transitions. [2021-03-24 11:21:33,719 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 11:21:33,721 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 11:21:33,721 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 11:21:33,721 INFO L185 Difference]: Start difference. First operand has 257 places, 206 transitions, 2844 flow. Second operand 18 states and 2466 transitions. [2021-03-24 11:21:33,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 244 transitions, 3817 flow [2021-03-24 11:21:33,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 244 transitions, 3705 flow, removed 8 selfloop flow, removed 18 redundant places. [2021-03-24 11:21:33,755 INFO L241 Difference]: Finished difference. Result has 255 places, 216 transitions, 3080 flow [2021-03-24 11:21:33,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2738, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3080, PETRI_PLACES=255, PETRI_TRANSITIONS=216} [2021-03-24 11:21:33,755 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 189 predicate places. [2021-03-24 11:21:33,755 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 216 transitions, 3080 flow [2021-03-24 11:21:33,756 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 11:21:33,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:33,756 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 11:21:33,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-24 11:21:33,756 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 11:21:33,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:33,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1365111755, now seen corresponding path program 117 times [2021-03-24 11:21:33,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:33,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453857688] [2021-03-24 11:21:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:33,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:33,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:33,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:33,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:33,819 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:33,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:33,844 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:21:33,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:33,870 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:21:33,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:21:33,914 INFO L142 QuantifierPusher]: treesize reduction 24, result has 70.7 percent of original size [2021-03-24 11:21:33,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:21:33,968 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:21:33,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:33,991 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:21:33,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:34,015 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:21:34,015 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:21:34,056 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:21:34,057 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:21:34,096 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:21:34,097 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:21:34,138 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:21:34,138 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 11:21:34,178 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:21:34,179 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:21:34,223 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:21:34,223 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:21:34,271 INFO L142 QuantifierPusher]: treesize reduction 33, result has 60.7 percent of original size [2021-03-24 11:21:34,272 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 11:21:34,342 INFO L142 QuantifierPusher]: treesize reduction 33, result has 58.2 percent of original size [2021-03-24 11:21:34,342 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:21:34,364 INFO L142 QuantifierPusher]: treesize reduction 42, result has 44.0 percent of original size [2021-03-24 11:21:34,364 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 11:21:34,407 INFO L142 QuantifierPusher]: treesize reduction 33, result has 58.2 percent of original size [2021-03-24 11:21:34,408 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:21:34,474 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 11:21:34,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:34,505 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:21:34,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:34,529 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:34,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:34,530 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:21:34,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:34,558 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:34,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:34,590 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:34,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:34,619 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:34,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:34,646 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 11:21:34,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453857688] [2021-03-24 11:21:34,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:34,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:34,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304215841] [2021-03-24 11:21:34,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:34,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:34,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:34,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:34,648 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:34,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 216 transitions, 3080 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 11:21:34,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:34,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:34,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:35,511 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2021-03-24 11:21:35,723 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-24 11:21:35,935 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-24 11:21:36,167 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-03-24 11:21:36,869 INFO L129 PetriNetUnfolder]: 190/813 cut-off events. [2021-03-24 11:21:36,870 INFO L130 PetriNetUnfolder]: For 8826/8832 co-relation queries the response was YES. [2021-03-24 11:21:36,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5305 conditions, 813 events. 190/813 cut-off events. For 8826/8832 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6009 event pairs, 89 based on Foata normal form. 4/805 useless extension candidates. Maximal degree in co-relation 5223. Up to 577 conditions per place. [2021-03-24 11:21:36,876 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 165 selfloop transitions, 35 changer transitions 29/239 dead transitions. [2021-03-24 11:21:36,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 239 transitions, 3785 flow [2021-03-24 11:21:36,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:36,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:36,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2461 transitions. [2021-03-24 11:21:36,878 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49180655475619506 [2021-03-24 11:21:36,878 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2461 transitions. [2021-03-24 11:21:36,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2461 transitions. [2021-03-24 11:21:36,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:36,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2461 transitions. [2021-03-24 11:21:36,879 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 11:21:36,881 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 11:21:36,881 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 11:21:36,881 INFO L185 Difference]: Start difference. First operand has 255 places, 216 transitions, 3080 flow. Second operand 18 states and 2461 transitions. [2021-03-24 11:21:36,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 239 transitions, 3785 flow [2021-03-24 11:21:36,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 239 transitions, 3625 flow, removed 27 selfloop flow, removed 14 redundant places. [2021-03-24 11:21:36,916 INFO L241 Difference]: Finished difference. Result has 261 places, 208 transitions, 2887 flow [2021-03-24 11:21:36,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2926, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2887, PETRI_PLACES=261, PETRI_TRANSITIONS=208} [2021-03-24 11:21:36,916 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 195 predicate places. [2021-03-24 11:21:36,916 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 208 transitions, 2887 flow [2021-03-24 11:21:36,917 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 11:21:36,917 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:36,917 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 11:21:36,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-24 11:21:36,917 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 11:21:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:36,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1092365149, now seen corresponding path program 118 times [2021-03-24 11:21:36,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:36,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119966883] [2021-03-24 11:21:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:36,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:36,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:36,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:36,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:36,974 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:36,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:36,999 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:36,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:37,032 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:37,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:37,081 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:37,082 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:37,141 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:37,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:37,162 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:37,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:37,184 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:37,184 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:37,224 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:37,224 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:37,259 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:37,259 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:37,297 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:37,297 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:37,336 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:37,337 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:37,384 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:37,385 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:37,403 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:37,403 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:37,444 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:37,444 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:37,512 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:21:37,513 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 11:21:37,557 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 11:21:37,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:21:37,587 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:21:37,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:37,620 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:37,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:37,643 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:37,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:37,672 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:37,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:37,704 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:37,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:37,734 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:37,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:37,735 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:37,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:37,763 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 11:21:37,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119966883] [2021-03-24 11:21:37,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:37,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:37,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892383388] [2021-03-24 11:21:37,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:37,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:37,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:37,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:37,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:37,766 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 208 transitions, 2887 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 11:21:37,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:37,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:37,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:38,600 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:21:38,861 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:39,578 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:21:39,905 INFO L129 PetriNetUnfolder]: 174/744 cut-off events. [2021-03-24 11:21:39,905 INFO L130 PetriNetUnfolder]: For 8220/8222 co-relation queries the response was YES. [2021-03-24 11:21:39,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4881 conditions, 744 events. 174/744 cut-off events. For 8220/8222 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5339 event pairs, 84 based on Foata normal form. 3/735 useless extension candidates. Maximal degree in co-relation 4795. Up to 547 conditions per place. [2021-03-24 11:21:39,911 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 159 selfloop transitions, 42 changer transitions 11/222 dead transitions. [2021-03-24 11:21:39,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 222 transitions, 3464 flow [2021-03-24 11:21:39,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 11:21:39,913 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 11:21:39,913 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 11:21:39,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 11:21:39,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:39,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 11:21:39,915 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 11:21:39,917 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 11:21:39,917 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 11:21:39,917 INFO L185 Difference]: Start difference. First operand has 261 places, 208 transitions, 2887 flow. Second operand 18 states and 2463 transitions. [2021-03-24 11:21:39,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 222 transitions, 3464 flow [2021-03-24 11:21:39,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 222 transitions, 3349 flow, removed 15 selfloop flow, removed 17 redundant places. [2021-03-24 11:21:39,948 INFO L241 Difference]: Finished difference. Result has 253 places, 206 transitions, 2836 flow [2021-03-24 11:21:39,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2772, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2836, PETRI_PLACES=253, PETRI_TRANSITIONS=206} [2021-03-24 11:21:39,948 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 187 predicate places. [2021-03-24 11:21:39,948 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 206 transitions, 2836 flow [2021-03-24 11:21:39,948 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 11:21:39,948 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:39,948 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 11:21:39,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-24 11:21:39,949 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 11:21:39,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:39,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1489361025, now seen corresponding path program 119 times [2021-03-24 11:21:39,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:39,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047711377] [2021-03-24 11:21:39,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:39,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:39,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:39,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:40,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:40,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:40,010 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:40,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:40,035 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:21:40,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:21:40,068 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 11:21:40,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 11:21:40,117 INFO L142 QuantifierPusher]: treesize reduction 25, result has 70.6 percent of original size [2021-03-24 11:21:40,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 11:21:40,171 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:21:40,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:40,192 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:21:40,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:40,213 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 11:21:40,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:21:40,238 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:21:40,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:40,261 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:21:40,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:40,285 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 11:21:40,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:40,311 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:21:40,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:21:40,344 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:21:40,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:40,361 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:21:40,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:40,390 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:21:40,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:40,421 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:21:40,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:40,449 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:21:40,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:40,480 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:21:40,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:40,501 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:21:40,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:21:40,529 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:21:40,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:40,560 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:40,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:40,592 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:40,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:40,622 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:40,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:40,623 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:40,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:40,651 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 11:21:40,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047711377] [2021-03-24 11:21:40,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:40,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:40,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523153825] [2021-03-24 11:21:40,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:40,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:40,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:40,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:40,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:40,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 206 transitions, 2836 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 11:21:40,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:40,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:40,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:41,496 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:21:41,756 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:42,800 INFO L129 PetriNetUnfolder]: 172/736 cut-off events. [2021-03-24 11:21:42,800 INFO L130 PetriNetUnfolder]: For 7779/7781 co-relation queries the response was YES. [2021-03-24 11:21:42,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4757 conditions, 736 events. 172/736 cut-off events. For 7779/7781 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5274 event pairs, 77 based on Foata normal form. 3/728 useless extension candidates. Maximal degree in co-relation 4675. Up to 535 conditions per place. [2021-03-24 11:21:42,805 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 156 selfloop transitions, 46 changer transitions 8/219 dead transitions. [2021-03-24 11:21:42,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 219 transitions, 3428 flow [2021-03-24 11:21:42,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:42,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2021-03-24 11:21:42,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49140687450039966 [2021-03-24 11:21:42,807 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2021-03-24 11:21:42,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2021-03-24 11:21:42,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:42,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2021-03-24 11:21:42,809 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 11:21:42,811 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 11:21:42,811 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 11:21:42,811 INFO L185 Difference]: Start difference. First operand has 253 places, 206 transitions, 2836 flow. Second operand 18 states and 2459 transitions. [2021-03-24 11:21:42,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 219 transitions, 3428 flow [2021-03-24 11:21:42,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 219 transitions, 3279 flow, removed 13 selfloop flow, removed 19 redundant places. [2021-03-24 11:21:42,839 INFO L241 Difference]: Finished difference. Result has 249 places, 205 transitions, 2801 flow [2021-03-24 11:21:42,839 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2699, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2801, PETRI_PLACES=249, PETRI_TRANSITIONS=205} [2021-03-24 11:21:42,839 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 183 predicate places. [2021-03-24 11:21:42,839 INFO L480 AbstractCegarLoop]: Abstraction has has 249 places, 205 transitions, 2801 flow [2021-03-24 11:21:42,839 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 11:21:42,840 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:42,840 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 11:21:42,840 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-24 11:21:42,840 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 11:21:42,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:42,840 INFO L82 PathProgramCache]: Analyzing trace with hash -676061353, now seen corresponding path program 120 times [2021-03-24 11:21:42,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:42,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099191736] [2021-03-24 11:21:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:42,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:42,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:42,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:42,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:42,896 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:42,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:42,922 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:42,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:42,955 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:42,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:43,006 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:43,006 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:43,067 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:43,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:43,089 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:43,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:43,112 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:43,112 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:43,154 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:43,155 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:43,191 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:43,192 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:43,229 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:43,230 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:43,269 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:43,270 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:43,319 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:43,319 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:43,338 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:43,338 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:43,381 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:43,382 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:43,428 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:21:43,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:43,458 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:21:43,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:43,490 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 11:21:43,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:21:43,524 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:43,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:43,548 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:43,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:43,579 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:43,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:43,612 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:43,644 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:43,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:43,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:43,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:43,678 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 11:21:43,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099191736] [2021-03-24 11:21:43,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:43,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:43,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763558839] [2021-03-24 11:21:43,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:43,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:43,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:43,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:43,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:43,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 205 transitions, 2801 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 11:21:43,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:43,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:43,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:44,453 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-03-24 11:21:44,611 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:21:44,903 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:45,226 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-24 11:21:45,380 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-24 11:21:45,615 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 11:21:45,966 INFO L129 PetriNetUnfolder]: 152/661 cut-off events. [2021-03-24 11:21:45,966 INFO L130 PetriNetUnfolder]: For 6918/6920 co-relation queries the response was YES. [2021-03-24 11:21:45,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4353 conditions, 661 events. 152/661 cut-off events. For 6918/6920 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4542 event pairs, 71 based on Foata normal form. 4/654 useless extension candidates. Maximal degree in co-relation 4274. Up to 490 conditions per place. [2021-03-24 11:21:45,971 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 153 selfloop transitions, 42 changer transitions 11/215 dead transitions. [2021-03-24 11:21:45,971 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 215 transitions, 3330 flow [2021-03-24 11:21:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2021-03-24 11:21:45,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49140687450039966 [2021-03-24 11:21:45,974 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2021-03-24 11:21:45,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2021-03-24 11:21:45,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:45,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2021-03-24 11:21:45,975 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 11:21:45,977 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 11:21:45,977 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 11:21:45,977 INFO L185 Difference]: Start difference. First operand has 249 places, 205 transitions, 2801 flow. Second operand 18 states and 2459 transitions. [2021-03-24 11:21:45,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 215 transitions, 3330 flow [2021-03-24 11:21:46,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 215 transitions, 3099 flow, removed 40 selfloop flow, removed 24 redundant places. [2021-03-24 11:21:46,004 INFO L241 Difference]: Finished difference. Result has 242 places, 200 transitions, 2633 flow [2021-03-24 11:21:46,004 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2591, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2633, PETRI_PLACES=242, PETRI_TRANSITIONS=200} [2021-03-24 11:21:46,004 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 176 predicate places. [2021-03-24 11:21:46,004 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 200 transitions, 2633 flow [2021-03-24 11:21:46,005 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 11:21:46,005 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:46,005 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 11:21:46,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-24 11:21:46,005 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 11:21:46,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:46,005 INFO L82 PathProgramCache]: Analyzing trace with hash 598857009, now seen corresponding path program 121 times [2021-03-24 11:21:46,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:46,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470099189] [2021-03-24 11:21:46,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:46,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:46,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:46,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:46,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:46,072 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:46,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:46,099 INFO L142 QuantifierPusher]: treesize reduction 12, result has 72.7 percent of original size [2021-03-24 11:21:46,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:46,127 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.3 percent of original size [2021-03-24 11:21:46,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:21:46,175 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-03-24 11:21:46,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:21:46,229 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.8 percent of original size [2021-03-24 11:21:46,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:21:46,258 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-24 11:21:46,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:21:46,282 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:21:46,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:46,305 INFO L142 QuantifierPusher]: treesize reduction 23, result has 62.3 percent of original size [2021-03-24 11:21:46,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:46,333 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:21:46,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:21:46,358 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:21:46,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:21:46,385 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:21:46,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:21:46,413 INFO L142 QuantifierPusher]: treesize reduction 23, result has 61.7 percent of original size [2021-03-24 11:21:46,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:46,447 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.2 percent of original size [2021-03-24 11:21:46,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:46,467 INFO L142 QuantifierPusher]: treesize reduction 23, result has 53.1 percent of original size [2021-03-24 11:21:46,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:46,499 INFO L142 QuantifierPusher]: treesize reduction 39, result has 47.3 percent of original size [2021-03-24 11:21:46,499 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size 28 [2021-03-24 11:21:46,548 INFO L142 QuantifierPusher]: treesize reduction 46, result has 53.5 percent of original size [2021-03-24 11:21:46,549 INFO L147 QuantifierPusher]: treesize reduction 6, result has 88.7 percent of original size 47 [2021-03-24 11:21:46,611 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-24 11:21:46,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:21:46,652 INFO L142 QuantifierPusher]: treesize reduction 18, result has 63.3 percent of original size [2021-03-24 11:21:46,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:21:46,680 INFO L142 QuantifierPusher]: treesize reduction 36, result has 44.6 percent of original size [2021-03-24 11:21:46,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:46,734 INFO L142 QuantifierPusher]: treesize reduction 36, result has 42.9 percent of original size [2021-03-24 11:21:46,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:46,789 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:21:46,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:21:46,825 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:21:46,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:21:46,857 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:21:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:21:46,886 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 11:21:46,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470099189] [2021-03-24 11:21:46,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:46,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:21:46,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779182691] [2021-03-24 11:21:46,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:21:46,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:46,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:21:46,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:21:46,888 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:21:46,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 200 transitions, 2633 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 11:21:46,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:46,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:21:46,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:47,771 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 53 [2021-03-24 11:21:47,928 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 58 [2021-03-24 11:21:48,155 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 60 [2021-03-24 11:21:48,370 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 64 [2021-03-24 11:21:49,065 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-24 11:21:49,724 INFO L129 PetriNetUnfolder]: 165/699 cut-off events. [2021-03-24 11:21:49,724 INFO L130 PetriNetUnfolder]: For 6573/6575 co-relation queries the response was YES. [2021-03-24 11:21:49,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4482 conditions, 699 events. 165/699 cut-off events. For 6573/6575 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4888 event pairs, 70 based on Foata normal form. 3/691 useless extension candidates. Maximal degree in co-relation 4412. Up to 462 conditions per place. [2021-03-24 11:21:49,729 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 149 selfloop transitions, 57 changer transitions 23/234 dead transitions. [2021-03-24 11:21:49,729 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 234 transitions, 3454 flow [2021-03-24 11:21:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-24 11:21:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-24 11:21:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1955 transitions. [2021-03-24 11:21:49,731 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3196533682145193 [2021-03-24 11:21:49,732 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1955 transitions. [2021-03-24 11:21:49,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1955 transitions. [2021-03-24 11:21:49,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:49,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1955 transitions. [2021-03-24 11:21:49,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 88.86363636363636) internal successors, (1955), 22 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:21:49,735 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 11:21:49,735 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 11:21:49,735 INFO L185 Difference]: Start difference. First operand has 242 places, 200 transitions, 2633 flow. Second operand 22 states and 1955 transitions. [2021-03-24 11:21:49,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 234 transitions, 3454 flow [2021-03-24 11:21:49,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 234 transitions, 3276 flow, removed 1 selfloop flow, removed 16 redundant places. [2021-03-24 11:21:49,758 INFO L241 Difference]: Finished difference. Result has 248 places, 203 transitions, 2641 flow [2021-03-24 11:21:49,758 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2463, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2641, PETRI_PLACES=248, PETRI_TRANSITIONS=203} [2021-03-24 11:21:49,758 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 182 predicate places. [2021-03-24 11:21:49,758 INFO L480 AbstractCegarLoop]: Abstraction has has 248 places, 203 transitions, 2641 flow [2021-03-24 11:21:49,758 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 11:21:49,758 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:49,758 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 11:21:49,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-24 11:21:49,758 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 11:21:49,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:49,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1910150535, now seen corresponding path program 122 times [2021-03-24 11:21:49,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:49,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346435814] [2021-03-24 11:21:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:49,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:49,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:49,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:49,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:49,819 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:49,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:49,845 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:21:49,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:49,871 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:21:49,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:21:49,914 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:21:49,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:21:49,963 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:21:49,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:49,984 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:21:49,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:50,006 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:21:50,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:21:50,045 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:50,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:50,081 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:50,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:50,118 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:21:50,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:50,155 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:21:50,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:21:50,200 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:21:50,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:50,218 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:21:50,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:21:50,259 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:21:50,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:21:50,309 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-03-24 11:21:50,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:21:50,341 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-03-24 11:21:50,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:50,373 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:21:50,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:50,374 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:21:50,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:21:50,411 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:21:50,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:50,436 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:21:50,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:50,483 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:21:50,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:50,516 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:21:50,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:50,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:50,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:50,577 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 11:21:50,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346435814] [2021-03-24 11:21:50,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:50,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:50,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455276003] [2021-03-24 11:21:50,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:50,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:50,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:50,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:50,579 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:50,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 203 transitions, 2641 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 11:21:50,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:50,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:50,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:51,309 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2021-03-24 11:21:51,467 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:21:51,700 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-03-24 11:21:52,021 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-24 11:21:52,235 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 11:21:52,605 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-03-24 11:21:52,997 INFO L129 PetriNetUnfolder]: 158/671 cut-off events. [2021-03-24 11:21:52,998 INFO L130 PetriNetUnfolder]: For 6343/6345 co-relation queries the response was YES. [2021-03-24 11:21:53,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4325 conditions, 671 events. 158/671 cut-off events. For 6343/6345 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4588 event pairs, 44 based on Foata normal form. 3/667 useless extension candidates. Maximal degree in co-relation 4253. Up to 357 conditions per place. [2021-03-24 11:21:53,002 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 131 selfloop transitions, 74 changer transitions 23/237 dead transitions. [2021-03-24 11:21:53,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 237 transitions, 3458 flow [2021-03-24 11:21:53,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:21:53,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:21:53,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 11:21:53,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 11:21:53,005 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 11:21:53,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 11:21:53,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:53,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 11:21:53,006 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 11:21:53,008 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 11:21:53,008 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 11:21:53,008 INFO L185 Difference]: Start difference. First operand has 248 places, 203 transitions, 2641 flow. Second operand 18 states and 2473 transitions. [2021-03-24 11:21:53,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 237 transitions, 3458 flow [2021-03-24 11:21:53,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 237 transitions, 3290 flow, removed 30 selfloop flow, removed 17 redundant places. [2021-03-24 11:21:53,035 INFO L241 Difference]: Finished difference. Result has 246 places, 201 transitions, 2624 flow [2021-03-24 11:21:53,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2485, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2624, PETRI_PLACES=246, PETRI_TRANSITIONS=201} [2021-03-24 11:21:53,035 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 180 predicate places. [2021-03-24 11:21:53,035 INFO L480 AbstractCegarLoop]: Abstraction has has 246 places, 201 transitions, 2624 flow [2021-03-24 11:21:53,035 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 11:21:53,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:53,035 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 11:21:53,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-24 11:21:53,035 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 11:21:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:53,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1852095021, now seen corresponding path program 123 times [2021-03-24 11:21:53,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:53,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522800058] [2021-03-24 11:21:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:53,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:53,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:53,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:53,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:53,092 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:53,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:53,117 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:21:53,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:53,151 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 11:21:53,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 11:21:53,200 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.4 percent of original size [2021-03-24 11:21:53,200 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.7 percent of original size 66 [2021-03-24 11:21:53,259 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 11:21:53,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:53,280 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:21:53,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:21:53,301 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:21:53,302 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 11:21:53,340 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:53,341 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:53,375 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:53,376 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:53,411 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:21:53,412 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 11:21:53,449 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:53,450 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 11:21:53,498 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:53,499 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:53,518 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:21:53,518 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 11:21:53,562 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:21:53,563 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 11:21:53,608 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 11:21:53,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:21:53,637 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 11:21:53,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:21:53,669 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:21:53,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:21:53,707 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-24 11:21:53,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:21:53,735 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 11:21:53,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:53,764 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:21:53,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:21:53,796 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:53,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:53,827 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:21:53,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:21:53,828 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:21:53,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:21:53,856 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 11:21:53,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522800058] [2021-03-24 11:21:53,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:53,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:21:53,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404265809] [2021-03-24 11:21:53,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:21:53,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:53,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:21:53,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:21:53,858 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:21:53,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 201 transitions, 2624 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 11:21:53,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:53,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:21:53,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:54,745 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 11:21:55,022 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 11:21:55,517 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-24 11:21:55,703 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 11:21:56,131 INFO L129 PetriNetUnfolder]: 141/614 cut-off events. [2021-03-24 11:21:56,132 INFO L130 PetriNetUnfolder]: For 5933/5935 co-relation queries the response was YES. [2021-03-24 11:21:56,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3977 conditions, 614 events. 141/614 cut-off events. For 5933/5935 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4093 event pairs, 68 based on Foata normal form. 3/607 useless extension candidates. Maximal degree in co-relation 3904. Up to 459 conditions per place. [2021-03-24 11:21:56,136 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 149 selfloop transitions, 39 changer transitions 12/209 dead transitions. [2021-03-24 11:21:56,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 209 transitions, 3110 flow [2021-03-24 11:21:56,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:21:56,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:21:56,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2592 transitions. [2021-03-24 11:21:56,139 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49072321090496024 [2021-03-24 11:21:56,139 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2592 transitions. [2021-03-24 11:21:56,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2592 transitions. [2021-03-24 11:21:56,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:21:56,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2592 transitions. [2021-03-24 11:21:56,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.42105263157896) internal successors, (2592), 19 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:21:56,142 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 11:21:56,142 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 11:21:56,142 INFO L185 Difference]: Start difference. First operand has 246 places, 201 transitions, 2624 flow. Second operand 19 states and 2592 transitions. [2021-03-24 11:21:56,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 209 transitions, 3110 flow [2021-03-24 11:21:56,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 209 transitions, 2951 flow, removed 9 selfloop flow, removed 17 redundant places. [2021-03-24 11:21:56,165 INFO L241 Difference]: Finished difference. Result has 243 places, 192 transitions, 2433 flow [2021-03-24 11:21:56,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2461, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2433, PETRI_PLACES=243, PETRI_TRANSITIONS=192} [2021-03-24 11:21:56,165 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 177 predicate places. [2021-03-24 11:21:56,165 INFO L480 AbstractCegarLoop]: Abstraction has has 243 places, 192 transitions, 2433 flow [2021-03-24 11:21:56,165 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 11:21:56,165 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:21:56,165 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 11:21:56,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-24 11:21:56,166 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 11:21:56,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:21:56,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1468502939, now seen corresponding path program 124 times [2021-03-24 11:21:56,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:21:56,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111042843] [2021-03-24 11:21:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:21:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:21:56,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:56,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:21:56,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:21:56,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:21:56,231 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:21:56,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:56,258 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 11:21:56,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:56,292 INFO L142 QuantifierPusher]: treesize reduction 17, result has 74.6 percent of original size [2021-03-24 11:21:56,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:21:56,339 INFO L142 QuantifierPusher]: treesize reduction 26, result has 69.4 percent of original size [2021-03-24 11:21:56,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:21:56,392 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:21:56,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:21:56,420 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-24 11:21:56,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:21:56,443 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:21:56,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:21:56,466 INFO L142 QuantifierPusher]: treesize reduction 23, result has 62.3 percent of original size [2021-03-24 11:21:56,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:21:56,494 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:21:56,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:21:56,519 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:21:56,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:21:56,545 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:21:56,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:21:56,572 INFO L142 QuantifierPusher]: treesize reduction 23, result has 61.7 percent of original size [2021-03-24 11:21:56,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:21:56,606 INFO L142 QuantifierPusher]: treesize reduction 39, result has 54.1 percent of original size [2021-03-24 11:21:56,607 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:21:56,664 INFO L142 QuantifierPusher]: treesize reduction 39, result has 51.2 percent of original size [2021-03-24 11:21:56,665 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-03-24 11:21:56,689 INFO L142 QuantifierPusher]: treesize reduction 44, result has 44.3 percent of original size [2021-03-24 11:21:56,689 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size 28 [2021-03-24 11:21:56,740 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.9 percent of original size [2021-03-24 11:21:56,740 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:21:56,793 INFO L142 QuantifierPusher]: treesize reduction 18, result has 60.0 percent of original size [2021-03-24 11:21:56,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:21:56,830 INFO L142 QuantifierPusher]: treesize reduction 18, result has 55.0 percent of original size [2021-03-24 11:21:56,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:21:56,856 INFO L142 QuantifierPusher]: treesize reduction 28, result has 36.4 percent of original size [2021-03-24 11:21:56,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:21:56,888 INFO L142 QuantifierPusher]: treesize reduction 28, result has 33.3 percent of original size [2021-03-24 11:21:56,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:21:56,921 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:21:56,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:21:56,954 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:21:56,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:21:56,985 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:21:56,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:21:57,012 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 11:21:57,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111042843] [2021-03-24 11:21:57,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:21:57,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:21:57,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150094377] [2021-03-24 11:21:57,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:21:57,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:21:57,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:21:57,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:21:57,014 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:21:57,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 192 transitions, 2433 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 11:21:57,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:21:57,015 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:21:57,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:21:57,837 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2021-03-24 11:21:58,004 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 58 [2021-03-24 11:21:58,196 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 63 [2021-03-24 11:21:58,406 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 67 [2021-03-24 11:21:58,698 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 69 [2021-03-24 11:22:00,100 INFO L129 PetriNetUnfolder]: 151/644 cut-off events. [2021-03-24 11:22:00,100 INFO L130 PetriNetUnfolder]: For 5766/5770 co-relation queries the response was YES. [2021-03-24 11:22:00,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3987 conditions, 644 events. 151/644 cut-off events. For 5766/5770 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4394 event pairs, 70 based on Foata normal form. 5/639 useless extension candidates. Maximal degree in co-relation 3919. Up to 431 conditions per place. [2021-03-24 11:22:00,104 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 145 selfloop transitions, 49 changer transitions 25/224 dead transitions. [2021-03-24 11:22:00,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 224 transitions, 3224 flow [2021-03-24 11:22:00,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-24 11:22:00,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-24 11:22:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1957 transitions. [2021-03-24 11:22:00,107 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3199803793328973 [2021-03-24 11:22:00,107 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1957 transitions. [2021-03-24 11:22:00,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1957 transitions. [2021-03-24 11:22:00,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:00,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1957 transitions. [2021-03-24 11:22:00,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 88.95454545454545) internal successors, (1957), 22 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:00,110 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 11:22:00,110 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 11:22:00,110 INFO L185 Difference]: Start difference. First operand has 243 places, 192 transitions, 2433 flow. Second operand 22 states and 1957 transitions. [2021-03-24 11:22:00,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 224 transitions, 3224 flow [2021-03-24 11:22:00,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 224 transitions, 3050 flow, removed 6 selfloop flow, removed 20 redundant places. [2021-03-24 11:22:00,130 INFO L241 Difference]: Finished difference. Result has 242 places, 191 transitions, 2361 flow [2021-03-24 11:22:00,130 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2272, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2361, PETRI_PLACES=242, PETRI_TRANSITIONS=191} [2021-03-24 11:22:00,130 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 176 predicate places. [2021-03-24 11:22:00,131 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 191 transitions, 2361 flow [2021-03-24 11:22:00,131 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 11:22:00,131 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:00,131 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 11:22:00,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-24 11:22:00,131 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 11:22:00,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:00,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1911258549, now seen corresponding path program 125 times [2021-03-24 11:22:00,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:00,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666040158] [2021-03-24 11:22:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:00,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:00,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:00,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:00,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:00,192 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:00,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:00,219 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:22:00,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:00,246 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 11:22:00,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:00,292 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 11:22:00,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:22:00,345 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:22:00,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:00,366 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:22:00,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:22:00,388 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 11:22:00,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:00,430 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:22:00,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:00,468 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:22:00,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:00,507 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 11:22:00,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:00,548 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:22:00,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:22:00,596 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 11:22:00,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:22:00,616 INFO L142 QuantifierPusher]: treesize reduction 22, result has 58.5 percent of original size [2021-03-24 11:22:00,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:22:00,660 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:22:00,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:22:00,714 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-03-24 11:22:00,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:00,748 INFO L142 QuantifierPusher]: treesize reduction 30, result has 52.4 percent of original size [2021-03-24 11:22:00,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:22:00,779 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:22:00,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:00,814 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:22:00,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:22:00,843 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:22:00,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:00,844 INFO L142 QuantifierPusher]: treesize reduction 37, result has 41.3 percent of original size [2021-03-24 11:22:00,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:22:00,895 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:00,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:00,930 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:22:00,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:00,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:00,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:00,994 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 11:22:00,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666040158] [2021-03-24 11:22:00,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:00,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:00,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066787595] [2021-03-24 11:22:00,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:00,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:00,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:00,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:00,996 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:00,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 191 transitions, 2361 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 11:22:00,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:00,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:00,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:01,888 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2021-03-24 11:22:02,110 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-03-24 11:22:02,457 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-03-24 11:22:02,659 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-03-24 11:22:03,123 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-03-24 11:22:03,538 INFO L129 PetriNetUnfolder]: 145/613 cut-off events. [2021-03-24 11:22:03,538 INFO L130 PetriNetUnfolder]: For 5745/5747 co-relation queries the response was YES. [2021-03-24 11:22:03,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3765 conditions, 613 events. 145/613 cut-off events. For 5745/5747 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4089 event pairs, 43 based on Foata normal form. 4/617 useless extension candidates. Maximal degree in co-relation 3696. Up to 343 conditions per place. [2021-03-24 11:22:03,542 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 117 selfloop transitions, 72 changer transitions 19/217 dead transitions. [2021-03-24 11:22:03,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 217 transitions, 3061 flow [2021-03-24 11:22:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 11:22:03,544 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 11:22:03,544 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 11:22:03,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 11:22:03,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:03,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 11:22:03,546 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 11:22:03,548 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 11:22:03,548 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 11:22:03,548 INFO L185 Difference]: Start difference. First operand has 242 places, 191 transitions, 2361 flow. Second operand 18 states and 2472 transitions. [2021-03-24 11:22:03,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 217 transitions, 3061 flow [2021-03-24 11:22:03,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 217 transitions, 2896 flow, removed 31 selfloop flow, removed 19 redundant places. [2021-03-24 11:22:03,571 INFO L241 Difference]: Finished difference. Result has 238 places, 186 transitions, 2342 flow [2021-03-24 11:22:03,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2201, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2342, PETRI_PLACES=238, PETRI_TRANSITIONS=186} [2021-03-24 11:22:03,571 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 172 predicate places. [2021-03-24 11:22:03,571 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 186 transitions, 2342 flow [2021-03-24 11:22:03,572 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 11:22:03,572 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:03,572 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 11:22:03,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-24 11:22:03,572 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 11:22:03,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:03,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1817316009, now seen corresponding path program 126 times [2021-03-24 11:22:03,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:03,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367162015] [2021-03-24 11:22:03,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:03,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:03,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:03,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:03,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:03,674 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:03,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:03,703 INFO L142 QuantifierPusher]: treesize reduction 12, result has 72.7 percent of original size [2021-03-24 11:22:03,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:03,733 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.3 percent of original size [2021-03-24 11:22:03,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:22:03,784 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.9 percent of original size [2021-03-24 11:22:03,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:22:03,840 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.8 percent of original size [2021-03-24 11:22:03,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:22:03,872 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-24 11:22:03,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:22:03,903 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:22:03,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:03,927 INFO L142 QuantifierPusher]: treesize reduction 23, result has 62.3 percent of original size [2021-03-24 11:22:03,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:03,957 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:22:03,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:03,988 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:22:03,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:04,016 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 11:22:04,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:04,046 INFO L142 QuantifierPusher]: treesize reduction 23, result has 61.7 percent of original size [2021-03-24 11:22:04,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:22:04,084 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.2 percent of original size [2021-03-24 11:22:04,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:04,105 INFO L142 QuantifierPusher]: treesize reduction 23, result has 53.1 percent of original size [2021-03-24 11:22:04,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:22:04,140 INFO L142 QuantifierPusher]: treesize reduction 23, result has 64.1 percent of original size [2021-03-24 11:22:04,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:22:04,181 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-03-24 11:22:04,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:22:04,216 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-24 11:22:04,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:22:04,259 INFO L142 QuantifierPusher]: treesize reduction 18, result has 63.3 percent of original size [2021-03-24 11:22:04,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:22:04,290 INFO L142 QuantifierPusher]: treesize reduction 36, result has 44.6 percent of original size [2021-03-24 11:22:04,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:04,352 INFO L142 QuantifierPusher]: treesize reduction 36, result has 42.9 percent of original size [2021-03-24 11:22:04,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:04,415 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:22:04,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:04,455 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:04,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:04,492 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:22:04,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:22:04,525 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 11:22:04,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367162015] [2021-03-24 11:22:04,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:04,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:22:04,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8645715] [2021-03-24 11:22:04,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:22:04,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:04,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:22:04,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:22:04,527 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:22:04,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 186 transitions, 2342 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 11:22:04,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:04,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:22:04,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:05,521 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 53 [2021-03-24 11:22:05,665 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 58 [2021-03-24 11:22:05,863 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 60 [2021-03-24 11:22:06,179 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-24 11:22:06,473 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-24 11:22:06,673 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-03-24 11:22:07,354 INFO L129 PetriNetUnfolder]: 130/572 cut-off events. [2021-03-24 11:22:07,354 INFO L130 PetriNetUnfolder]: For 5347/5353 co-relation queries the response was YES. [2021-03-24 11:22:07,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3566 conditions, 572 events. 130/572 cut-off events. For 5347/5353 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3721 event pairs, 44 based on Foata normal form. 7/579 useless extension candidates. Maximal degree in co-relation 3497. Up to 326 conditions per place. [2021-03-24 11:22:07,358 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 115 selfloop transitions, 72 changer transitions 24/216 dead transitions. [2021-03-24 11:22:07,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 216 transitions, 3081 flow [2021-03-24 11:22:07,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-24 11:22:07,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-24 11:22:07,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1960 transitions. [2021-03-24 11:22:07,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32047089601046436 [2021-03-24 11:22:07,360 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1960 transitions. [2021-03-24 11:22:07,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1960 transitions. [2021-03-24 11:22:07,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:07,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1960 transitions. [2021-03-24 11:22:07,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 89.0909090909091) internal successors, (1960), 22 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:07,364 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 11:22:07,364 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 11:22:07,364 INFO L185 Difference]: Start difference. First operand has 238 places, 186 transitions, 2342 flow. Second operand 22 states and 1960 transitions. [2021-03-24 11:22:07,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 216 transitions, 3081 flow [2021-03-24 11:22:07,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 216 transitions, 2708 flow, removed 30 selfloop flow, removed 20 redundant places. [2021-03-24 11:22:07,386 INFO L241 Difference]: Finished difference. Result has 238 places, 179 transitions, 2093 flow [2021-03-24 11:22:07,386 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1995, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2093, PETRI_PLACES=238, PETRI_TRANSITIONS=179} [2021-03-24 11:22:07,386 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 172 predicate places. [2021-03-24 11:22:07,386 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 179 transitions, 2093 flow [2021-03-24 11:22:07,386 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 11:22:07,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:07,386 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 11:22:07,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-24 11:22:07,386 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 11:22:07,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:07,387 INFO L82 PathProgramCache]: Analyzing trace with hash 915330897, now seen corresponding path program 127 times [2021-03-24 11:22:07,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:07,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087055894] [2021-03-24 11:22:07,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:07,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:07,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:07,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:07,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:07,458 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:07,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:07,484 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.1 percent of original size [2021-03-24 11:22:07,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:07,512 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 11:22:07,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:22:07,559 INFO L142 QuantifierPusher]: treesize reduction 24, result has 70.7 percent of original size [2021-03-24 11:22:07,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:22:07,613 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.6 percent of original size [2021-03-24 11:22:07,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:07,635 INFO L142 QuantifierPusher]: treesize reduction 20, result has 60.8 percent of original size [2021-03-24 11:22:07,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:22:07,656 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.7 percent of original size [2021-03-24 11:22:07,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:22:07,694 INFO L142 QuantifierPusher]: treesize reduction 27, result has 54.2 percent of original size [2021-03-24 11:22:07,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:07,726 INFO L142 QuantifierPusher]: treesize reduction 27, result has 54.2 percent of original size [2021-03-24 11:22:07,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:07,762 INFO L142 QuantifierPusher]: treesize reduction 27, result has 54.2 percent of original size [2021-03-24 11:22:07,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:07,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.1 percent of original size [2021-03-24 11:22:07,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:22:07,848 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.7 percent of original size [2021-03-24 11:22:07,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:22:07,867 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 11:22:07,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:07,909 INFO L142 QuantifierPusher]: treesize reduction 27, result has 47.1 percent of original size [2021-03-24 11:22:07,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:22:07,941 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.1 percent of original size [2021-03-24 11:22:07,941 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 11:22:07,995 INFO L142 QuantifierPusher]: treesize reduction 47, result has 48.9 percent of original size [2021-03-24 11:22:07,995 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.7 percent of original size 39 [2021-03-24 11:22:08,052 INFO L142 QuantifierPusher]: treesize reduction 31, result has 48.3 percent of original size [2021-03-24 11:22:08,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:08,088 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:22:08,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:22:08,121 INFO L142 QuantifierPusher]: treesize reduction 19, result has 60.4 percent of original size [2021-03-24 11:22:08,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:08,122 INFO L142 QuantifierPusher]: treesize reduction 42, result has 35.4 percent of original size [2021-03-24 11:22:08,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:08,171 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:22:08,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:08,205 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:08,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:08,237 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:22:08,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:22:08,264 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 11:22:08,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087055894] [2021-03-24 11:22:08,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:08,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:08,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557314145] [2021-03-24 11:22:08,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:08,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:08,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:08,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:08,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:08,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 179 transitions, 2093 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 11:22:08,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:08,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:08,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:09,137 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-03-24 11:22:09,353 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2021-03-24 11:22:09,534 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-24 11:22:09,805 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-24 11:22:10,225 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-03-24 11:22:10,566 INFO L129 PetriNetUnfolder]: 121/526 cut-off events. [2021-03-24 11:22:10,566 INFO L130 PetriNetUnfolder]: For 4363/4369 co-relation queries the response was YES. [2021-03-24 11:22:10,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3104 conditions, 526 events. 121/526 cut-off events. For 4363/4369 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3290 event pairs, 48 based on Foata normal form. 3/529 useless extension candidates. Maximal degree in co-relation 3036. Up to 353 conditions per place. [2021-03-24 11:22:10,570 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 128 selfloop transitions, 32 changer transitions 25/194 dead transitions. [2021-03-24 11:22:10,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 194 transitions, 2584 flow [2021-03-24 11:22:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:10,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2458 transitions. [2021-03-24 11:22:10,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.491207034372502 [2021-03-24 11:22:10,572 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2458 transitions. [2021-03-24 11:22:10,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2458 transitions. [2021-03-24 11:22:10,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:10,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2458 transitions. [2021-03-24 11:22:10,574 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 11:22:10,576 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 11:22:10,576 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 11:22:10,576 INFO L185 Difference]: Start difference. First operand has 238 places, 179 transitions, 2093 flow. Second operand 18 states and 2458 transitions. [2021-03-24 11:22:10,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 194 transitions, 2584 flow [2021-03-24 11:22:10,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 194 transitions, 2248 flow, removed 29 selfloop flow, removed 21 redundant places. [2021-03-24 11:22:10,592 INFO L241 Difference]: Finished difference. Result has 229 places, 167 transitions, 1691 flow [2021-03-24 11:22:10,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1763, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1691, PETRI_PLACES=229, PETRI_TRANSITIONS=167} [2021-03-24 11:22:10,592 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 163 predicate places. [2021-03-24 11:22:10,592 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 167 transitions, 1691 flow [2021-03-24 11:22:10,592 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 11:22:10,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:10,592 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 11:22:10,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-24 11:22:10,593 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 11:22:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:10,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1469047919, now seen corresponding path program 128 times [2021-03-24 11:22:10,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:10,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004394712] [2021-03-24 11:22:10,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:10,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:10,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:10,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:10,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:10,658 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:10,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:10,702 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:22:10,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:10,730 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:22:10,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:10,776 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:22:10,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:22:10,833 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:22:10,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:10,871 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:22:10,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:22:10,908 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:22:10,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:22:10,961 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:10,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:11,008 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:11,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:11,056 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:11,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:11,107 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:22:11,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:22:11,159 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.7 percent of original size [2021-03-24 11:22:11,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:22:11,227 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:22:11,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:22:11,257 INFO L142 QuantifierPusher]: treesize reduction 52, result has 50.5 percent of original size [2021-03-24 11:22:11,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:22:11,319 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:22:11,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:22:11,384 INFO L142 QuantifierPusher]: treesize reduction 28, result has 47.2 percent of original size [2021-03-24 11:22:11,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:22:11,418 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.9 percent of original size [2021-03-24 11:22:11,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:11,472 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.1 percent of original size [2021-03-24 11:22:11,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:11,506 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.1 percent of original size [2021-03-24 11:22:11,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:11,508 INFO L142 QuantifierPusher]: treesize reduction 41, result has 43.8 percent of original size [2021-03-24 11:22:11,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:11,559 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:22:11,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:11,617 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:22:11,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:11,651 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:11,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:11,682 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 11:22:11,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004394712] [2021-03-24 11:22:11,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:11,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:11,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296833036] [2021-03-24 11:22:11,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:11,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:11,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:11,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:11,684 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:11,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 167 transitions, 1691 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 11:22:11,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:11,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:11,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:12,454 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2021-03-24 11:22:12,626 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-03-24 11:22:12,819 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-03-24 11:22:13,081 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-03-24 11:22:13,704 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 11:22:14,086 INFO L129 PetriNetUnfolder]: 114/493 cut-off events. [2021-03-24 11:22:14,086 INFO L130 PetriNetUnfolder]: For 3103/3107 co-relation queries the response was YES. [2021-03-24 11:22:14,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2663 conditions, 493 events. 114/493 cut-off events. For 3103/3107 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3028 event pairs, 36 based on Foata normal form. 5/498 useless extension candidates. Maximal degree in co-relation 2597. Up to 289 conditions per place. [2021-03-24 11:22:14,089 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 149 selfloop transitions, 39 changer transitions 28/225 dead transitions. [2021-03-24 11:22:14,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 2749 flow [2021-03-24 11:22:14,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:14,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 11:22:14,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 11:22:14,092 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 11:22:14,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 11:22:14,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:14,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 11:22:14,093 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 11:22:14,095 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 11:22:14,095 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 11:22:14,095 INFO L185 Difference]: Start difference. First operand has 229 places, 167 transitions, 1691 flow. Second operand 18 states and 2468 transitions. [2021-03-24 11:22:14,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 2749 flow [2021-03-24 11:22:14,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 225 transitions, 2407 flow, removed 8 selfloop flow, removed 22 redundant places. [2021-03-24 11:22:14,109 INFO L241 Difference]: Finished difference. Result has 218 places, 172 transitions, 1605 flow [2021-03-24 11:22:14,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1431, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1605, PETRI_PLACES=218, PETRI_TRANSITIONS=172} [2021-03-24 11:22:14,109 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 152 predicate places. [2021-03-24 11:22:14,109 INFO L480 AbstractCegarLoop]: Abstraction has has 218 places, 172 transitions, 1605 flow [2021-03-24 11:22:14,109 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 11:22:14,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:14,109 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 11:22:14,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-24 11:22:14,110 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 11:22:14,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:14,110 INFO L82 PathProgramCache]: Analyzing trace with hash -644023831, now seen corresponding path program 129 times [2021-03-24 11:22:14,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:14,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190009644] [2021-03-24 11:22:14,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:14,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:14,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:14,176 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:14,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:14,204 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:22:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:14,232 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:22:14,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:14,280 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:22:14,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:22:14,337 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:22:14,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:14,376 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:22:14,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:22:14,414 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:22:14,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:22:14,466 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:14,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:14,513 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:14,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:14,561 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:14,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:14,612 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:22:14,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:22:14,665 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.7 percent of original size [2021-03-24 11:22:14,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:22:14,732 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:22:14,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:22:14,763 INFO L142 QuantifierPusher]: treesize reduction 52, result has 50.5 percent of original size [2021-03-24 11:22:14,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:22:14,827 INFO L142 QuantifierPusher]: treesize reduction 81, result has 45.3 percent of original size [2021-03-24 11:22:14,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:22:14,892 INFO L142 QuantifierPusher]: treesize reduction 76, result has 49.0 percent of original size [2021-03-24 11:22:14,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 11:22:14,963 INFO L142 QuantifierPusher]: treesize reduction 41, result has 48.1 percent of original size [2021-03-24 11:22:14,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:15,016 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:22:15,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:15,051 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:22:15,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:15,052 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:22:15,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:15,104 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:22:15,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:15,163 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:22:15,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:15,194 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:15,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:15,224 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 11:22:15,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190009644] [2021-03-24 11:22:15,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:15,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:15,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272942094] [2021-03-24 11:22:15,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:15,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:15,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:15,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:15,226 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:15,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 172 transitions, 1605 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 11:22:15,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:15,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:15,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:16,020 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2021-03-24 11:22:16,169 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-03-24 11:22:16,351 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-03-24 11:22:16,586 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-03-24 11:22:16,829 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-03-24 11:22:17,498 INFO L129 PetriNetUnfolder]: 103/464 cut-off events. [2021-03-24 11:22:17,498 INFO L130 PetriNetUnfolder]: For 2592/2594 co-relation queries the response was YES. [2021-03-24 11:22:17,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2404 conditions, 464 events. 103/464 cut-off events. For 2592/2594 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2810 event pairs, 45 based on Foata normal form. 3/467 useless extension candidates. Maximal degree in co-relation 2338. Up to 312 conditions per place. [2021-03-24 11:22:17,501 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 135 selfloop transitions, 30 changer transitions 23/197 dead transitions. [2021-03-24 11:22:17,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 197 transitions, 2238 flow [2021-03-24 11:22:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2461 transitions. [2021-03-24 11:22:17,503 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49180655475619506 [2021-03-24 11:22:17,503 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2461 transitions. [2021-03-24 11:22:17,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2461 transitions. [2021-03-24 11:22:17,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:17,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2461 transitions. [2021-03-24 11:22:17,504 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 11:22:17,506 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 11:22:17,506 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 11:22:17,506 INFO L185 Difference]: Start difference. First operand has 218 places, 172 transitions, 1605 flow. Second operand 18 states and 2461 transitions. [2021-03-24 11:22:17,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 197 transitions, 2238 flow [2021-03-24 11:22:17,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 197 transitions, 2160 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-24 11:22:17,519 INFO L241 Difference]: Finished difference. Result has 224 places, 168 transitions, 1564 flow [2021-03-24 11:22:17,519 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1564, PETRI_PLACES=224, PETRI_TRANSITIONS=168} [2021-03-24 11:22:17,519 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 158 predicate places. [2021-03-24 11:22:17,519 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 168 transitions, 1564 flow [2021-03-24 11:22:17,519 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 11:22:17,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:17,519 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 11:22:17,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-24 11:22:17,519 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 11:22:17,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:17,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1505166539, now seen corresponding path program 130 times [2021-03-24 11:22:17,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:17,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816747266] [2021-03-24 11:22:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:17,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:17,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:17,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:17,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:17,597 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:17,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:17,622 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:22:17,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:17,651 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:22:17,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:17,698 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:22:17,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:22:17,754 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:22:17,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:17,792 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:22:17,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:22:17,828 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:22:17,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:22:17,884 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:17,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:17,928 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:17,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:17,972 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:18,017 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:22:18,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:22:18,064 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.7 percent of original size [2021-03-24 11:22:18,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:22:18,130 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:22:18,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:22:18,158 INFO L142 QuantifierPusher]: treesize reduction 69, result has 53.7 percent of original size [2021-03-24 11:22:18,159 INFO L147 QuantifierPusher]: treesize reduction 7, result has 91.3 percent of original size 73 [2021-03-24 11:22:18,254 INFO L142 QuantifierPusher]: treesize reduction 81, result has 45.3 percent of original size [2021-03-24 11:22:18,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:22:18,323 INFO L142 QuantifierPusher]: treesize reduction 76, result has 49.0 percent of original size [2021-03-24 11:22:18,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 11:22:18,397 INFO L142 QuantifierPusher]: treesize reduction 41, result has 48.1 percent of original size [2021-03-24 11:22:18,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:18,454 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:22:18,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:18,489 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:22:18,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:18,491 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:22:18,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:18,543 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:22:18,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:18,601 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:22:18,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:18,633 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:18,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:18,664 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 11:22:18,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816747266] [2021-03-24 11:22:18,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:18,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:18,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584354397] [2021-03-24 11:22:18,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:18,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:18,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:18,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:18,666 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:18,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 168 transitions, 1564 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 11:22:18,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:18,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:18,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:19,441 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2021-03-24 11:22:19,606 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-03-24 11:22:19,800 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-03-24 11:22:20,006 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 66 [2021-03-24 11:22:20,277 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2021-03-24 11:22:20,926 INFO L129 PetriNetUnfolder]: 95/438 cut-off events. [2021-03-24 11:22:20,926 INFO L130 PetriNetUnfolder]: For 2516/2518 co-relation queries the response was YES. [2021-03-24 11:22:20,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 438 events. 95/438 cut-off events. For 2516/2518 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2615 event pairs, 42 based on Foata normal form. 3/441 useless extension candidates. Maximal degree in co-relation 2188. Up to 291 conditions per place. [2021-03-24 11:22:20,929 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 130 selfloop transitions, 26 changer transitions 27/192 dead transitions. [2021-03-24 11:22:20,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 192 transitions, 2169 flow [2021-03-24 11:22:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2462 transitions. [2021-03-24 11:22:20,931 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4920063948840927 [2021-03-24 11:22:20,931 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2462 transitions. [2021-03-24 11:22:20,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2462 transitions. [2021-03-24 11:22:20,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:20,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2462 transitions. [2021-03-24 11:22:20,932 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 11:22:20,934 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 11:22:20,934 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 11:22:20,934 INFO L185 Difference]: Start difference. First operand has 224 places, 168 transitions, 1564 flow. Second operand 18 states and 2462 transitions. [2021-03-24 11:22:20,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 192 transitions, 2169 flow [2021-03-24 11:22:20,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 192 transitions, 2083 flow, removed 10 selfloop flow, removed 16 redundant places. [2021-03-24 11:22:20,946 INFO L241 Difference]: Finished difference. Result has 224 places, 161 transitions, 1467 flow [2021-03-24 11:22:20,947 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1467, PETRI_PLACES=224, PETRI_TRANSITIONS=161} [2021-03-24 11:22:20,947 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 158 predicate places. [2021-03-24 11:22:20,947 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 161 transitions, 1467 flow [2021-03-24 11:22:20,947 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 11:22:20,947 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:20,947 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 11:22:20,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-24 11:22:20,947 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 11:22:20,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:20,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1918660385, now seen corresponding path program 131 times [2021-03-24 11:22:20,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:20,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349592639] [2021-03-24 11:22:20,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:20,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:20,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:21,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:21,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:21,011 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:21,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:21,035 INFO L142 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size [2021-03-24 11:22:21,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:21,060 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:22:21,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:21,103 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-24 11:22:21,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:22:21,152 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:22:21,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:21,173 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:22:21,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:22:21,195 INFO L142 QuantifierPusher]: treesize reduction 16, result has 74.2 percent of original size [2021-03-24 11:22:21,195 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:22:21,236 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:22:21,237 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:21,275 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:22:21,275 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:21,316 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:22:21,316 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:21,355 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-24 11:22:21,356 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:22:21,396 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:22:21,397 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:22:21,444 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.2 percent of original size [2021-03-24 11:22:21,444 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-24 11:22:21,493 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:22:21,493 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:22:21,514 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.9 percent of original size [2021-03-24 11:22:21,515 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:22:21,579 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:22:21,579 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:22:21,626 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 11:22:21,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:21,656 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:22:21,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:21,680 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:21,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:21,681 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:22:21,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:21,711 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:21,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:21,742 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:22:21,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:21,772 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:21,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:21,799 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 11:22:21,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349592639] [2021-03-24 11:22:21,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:21,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:21,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373670579] [2021-03-24 11:22:21,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:21,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:21,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:21,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:21,801 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:21,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 161 transitions, 1467 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 11:22:21,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:21,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:21,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:22,794 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-24 11:22:22,965 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-24 11:22:23,239 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-03-24 11:22:23,959 INFO L129 PetriNetUnfolder]: 78/378 cut-off events. [2021-03-24 11:22:23,960 INFO L130 PetriNetUnfolder]: For 2039/2041 co-relation queries the response was YES. [2021-03-24 11:22:23,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1927 conditions, 378 events. 78/378 cut-off events. For 2039/2041 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2109 event pairs, 31 based on Foata normal form. 3/381 useless extension candidates. Maximal degree in co-relation 1860. Up to 240 conditions per place. [2021-03-24 11:22:23,962 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 126 selfloop transitions, 24 changer transitions 24/183 dead transitions. [2021-03-24 11:22:23,962 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 183 transitions, 2014 flow [2021-03-24 11:22:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2021-03-24 11:22:23,964 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49160671462829736 [2021-03-24 11:22:23,964 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2021-03-24 11:22:23,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2021-03-24 11:22:23,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:23,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2021-03-24 11:22:23,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:23,968 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 11:22:23,968 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 11:22:23,968 INFO L185 Difference]: Start difference. First operand has 224 places, 161 transitions, 1467 flow. Second operand 18 states and 2460 transitions. [2021-03-24 11:22:23,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 183 transitions, 2014 flow [2021-03-24 11:22:23,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 183 transitions, 1940 flow, removed 10 selfloop flow, removed 15 redundant places. [2021-03-24 11:22:23,979 INFO L241 Difference]: Finished difference. Result has 224 places, 155 transitions, 1386 flow [2021-03-24 11:22:23,979 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1395, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1386, PETRI_PLACES=224, PETRI_TRANSITIONS=155} [2021-03-24 11:22:23,979 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 158 predicate places. [2021-03-24 11:22:23,979 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 155 transitions, 1386 flow [2021-03-24 11:22:23,979 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 11:22:23,979 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:23,979 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 11:22:23,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-24 11:22:23,979 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 11:22:23,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:23,980 INFO L82 PathProgramCache]: Analyzing trace with hash -608151095, now seen corresponding path program 132 times [2021-03-24 11:22:23,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:23,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357034639] [2021-03-24 11:22:23,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:24,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:24,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:24,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:24,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:24,044 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:24,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:24,072 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:22:24,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:24,114 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:22:24,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:22:24,171 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:22:24,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:22:24,236 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:22:24,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:24,265 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:22:24,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:24,289 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:22:24,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:22:24,312 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:22:24,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:22:24,339 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:24,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:24,363 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:24,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:24,389 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:24,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:24,416 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:22:24,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:24,443 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:22:24,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:24,479 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:24,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:24,501 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:22:24,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:22:24,534 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:24,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:24,569 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:22:24,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:22:24,600 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:22:24,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:22:24,640 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:22:24,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:24,667 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:22:24,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:24,700 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:22:24,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:24,735 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:24,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:24,768 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:24,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:24,769 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:22:24,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:22:24,797 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 11:22:24,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357034639] [2021-03-24 11:22:24,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:24,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:22:24,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067337424] [2021-03-24 11:22:24,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:22:24,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:24,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:22:24,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:22:24,799 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:22:24,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 155 transitions, 1386 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 11:22:24,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:24,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:22:24,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:25,602 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-03-24 11:22:25,764 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-03-24 11:22:25,924 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-03-24 11:22:26,195 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:22:26,506 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 11:22:26,695 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:22:26,981 INFO L129 PetriNetUnfolder]: 63/318 cut-off events. [2021-03-24 11:22:26,981 INFO L130 PetriNetUnfolder]: For 1617/1619 co-relation queries the response was YES. [2021-03-24 11:22:26,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1640 conditions, 318 events. 63/318 cut-off events. For 1617/1619 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1626 event pairs, 28 based on Foata normal form. 3/321 useless extension candidates. Maximal degree in co-relation 1573. Up to 230 conditions per place. [2021-03-24 11:22:26,984 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 124 selfloop transitions, 19 changer transitions 19/167 dead transitions. [2021-03-24 11:22:26,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 167 transitions, 1796 flow [2021-03-24 11:22:26,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1594 transitions. [2021-03-24 11:22:26,986 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31854516386890486 [2021-03-24 11:22:26,986 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1594 transitions. [2021-03-24 11:22:26,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1594 transitions. [2021-03-24 11:22:26,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:26,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1594 transitions. [2021-03-24 11:22:26,988 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 11:22:26,990 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 11:22:26,990 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 11:22:26,990 INFO L185 Difference]: Start difference. First operand has 224 places, 155 transitions, 1386 flow. Second operand 18 states and 1594 transitions. [2021-03-24 11:22:26,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 167 transitions, 1796 flow [2021-03-24 11:22:26,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 167 transitions, 1720 flow, removed 8 selfloop flow, removed 14 redundant places. [2021-03-24 11:22:26,999 INFO L241 Difference]: Finished difference. Result has 220 places, 146 transitions, 1265 flow [2021-03-24 11:22:26,999 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1306, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1265, PETRI_PLACES=220, PETRI_TRANSITIONS=146} [2021-03-24 11:22:26,999 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 154 predicate places. [2021-03-24 11:22:26,999 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 146 transitions, 1265 flow [2021-03-24 11:22:27,000 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 11:22:27,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:27,000 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 11:22:27,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-24 11:22:27,000 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 11:22:27,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:27,000 INFO L82 PathProgramCache]: Analyzing trace with hash -76523641, now seen corresponding path program 133 times [2021-03-24 11:22:27,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:27,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921705626] [2021-03-24 11:22:27,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:27,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:27,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:27,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:27,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:27,065 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:27,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:27,092 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:22:27,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:27,134 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:22:27,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:22:27,190 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:22:27,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:22:27,253 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:22:27,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:27,281 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:22:27,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:27,304 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:22:27,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:22:27,328 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:22:27,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:22:27,353 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:27,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:27,376 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:27,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:27,400 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:22:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:27,426 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:22:27,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:27,459 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:27,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:27,478 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:27,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:27,531 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:22:27,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:22:27,563 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:27,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:27,597 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:22:27,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:22:27,628 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:22:27,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:22:27,664 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:22:27,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:27,689 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:22:27,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:27,721 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:22:27,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:27,755 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:27,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:27,785 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:27,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:27,786 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:22:27,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:22:27,812 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 11:22:27,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921705626] [2021-03-24 11:22:27,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:27,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:22:27,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914952534] [2021-03-24 11:22:27,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:22:27,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:27,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:22:27,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:22:27,814 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:22:27,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 146 transitions, 1265 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 11:22:27,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:27,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:22:27,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:28,682 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-03-24 11:22:28,847 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-03-24 11:22:29,124 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-03-24 11:22:29,644 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:22:29,946 INFO L129 PetriNetUnfolder]: 62/303 cut-off events. [2021-03-24 11:22:29,946 INFO L130 PetriNetUnfolder]: For 1461/1461 co-relation queries the response was YES. [2021-03-24 11:22:29,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1529 conditions, 303 events. 62/303 cut-off events. For 1461/1461 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1515 event pairs, 28 based on Foata normal form. 1/304 useless extension candidates. Maximal degree in co-relation 1463. Up to 210 conditions per place. [2021-03-24 11:22:29,948 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 111 selfloop transitions, 22 changer transitions 19/157 dead transitions. [2021-03-24 11:22:29,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 157 transitions, 1651 flow [2021-03-24 11:22:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:29,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1597 transitions. [2021-03-24 11:22:29,950 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3191446842525979 [2021-03-24 11:22:29,950 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1597 transitions. [2021-03-24 11:22:29,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1597 transitions. [2021-03-24 11:22:29,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:29,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1597 transitions. [2021-03-24 11:22:29,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.72222222222223) internal successors, (1597), 18 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:29,953 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 11:22:29,953 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 11:22:29,953 INFO L185 Difference]: Start difference. First operand has 220 places, 146 transitions, 1265 flow. Second operand 18 states and 1597 transitions. [2021-03-24 11:22:29,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 157 transitions, 1651 flow [2021-03-24 11:22:29,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 157 transitions, 1576 flow, removed 5 selfloop flow, removed 17 redundant places. [2021-03-24 11:22:29,961 INFO L241 Difference]: Finished difference. Result has 205 places, 137 transitions, 1146 flow [2021-03-24 11:22:29,962 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1192, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1146, PETRI_PLACES=205, PETRI_TRANSITIONS=137} [2021-03-24 11:22:29,962 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 139 predicate places. [2021-03-24 11:22:29,962 INFO L480 AbstractCegarLoop]: Abstraction has has 205 places, 137 transitions, 1146 flow [2021-03-24 11:22:29,962 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 11:22:29,962 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:29,962 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 11:22:29,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-24 11:22:29,962 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 11:22:29,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:29,962 INFO L82 PathProgramCache]: Analyzing trace with hash 648664209, now seen corresponding path program 134 times [2021-03-24 11:22:29,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:29,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037174745] [2021-03-24 11:22:29,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:30,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:30,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:30,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:30,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:30,024 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:30,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:30,052 INFO L142 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size [2021-03-24 11:22:30,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:30,080 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.0 percent of original size [2021-03-24 11:22:30,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:30,128 INFO L142 QuantifierPusher]: treesize reduction 31, result has 65.2 percent of original size [2021-03-24 11:22:30,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:22:30,183 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:22:30,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:30,206 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:22:30,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:22:30,229 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:22:30,230 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:22:30,271 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:22:30,272 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:30,309 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:22:30,310 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:30,348 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-03-24 11:22:30,349 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:22:30,388 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:22:30,389 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:22:30,434 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:22:30,435 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:22:30,483 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size [2021-03-24 11:22:30,484 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-24 11:22:30,535 INFO L142 QuantifierPusher]: treesize reduction 33, result has 58.2 percent of original size [2021-03-24 11:22:30,536 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:22:30,559 INFO L142 QuantifierPusher]: treesize reduction 42, result has 44.0 percent of original size [2021-03-24 11:22:30,560 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 11:22:30,606 INFO L142 QuantifierPusher]: treesize reduction 33, result has 58.2 percent of original size [2021-03-24 11:22:30,607 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 11:22:30,666 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 11:22:30,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:30,699 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:22:30,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:30,726 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:30,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:30,727 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:22:30,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:30,759 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:30,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:30,794 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:22:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:30,827 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:30,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:30,858 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 11:22:30,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037174745] [2021-03-24 11:22:30,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:30,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:30,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282706935] [2021-03-24 11:22:30,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:30,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:30,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:30,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:30,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:30,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 137 transitions, 1146 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 11:22:30,861 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:30,861 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:30,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:31,752 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2021-03-24 11:22:31,912 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-24 11:22:32,126 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-24 11:22:32,407 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-03-24 11:22:33,164 INFO L129 PetriNetUnfolder]: 60/279 cut-off events. [2021-03-24 11:22:33,164 INFO L130 PetriNetUnfolder]: For 1285/1285 co-relation queries the response was YES. [2021-03-24 11:22:33,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 279 events. 60/279 cut-off events. For 1285/1285 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1323 event pairs, 21 based on Foata normal form. 1/280 useless extension candidates. Maximal degree in co-relation 1323. Up to 159 conditions per place. [2021-03-24 11:22:33,166 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 94 selfloop transitions, 20 changer transitions 26/149 dead transitions. [2021-03-24 11:22:33,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 149 transitions, 1536 flow [2021-03-24 11:22:33,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:33,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2458 transitions. [2021-03-24 11:22:33,168 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.491207034372502 [2021-03-24 11:22:33,168 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2458 transitions. [2021-03-24 11:22:33,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2458 transitions. [2021-03-24 11:22:33,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:33,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2458 transitions. [2021-03-24 11:22:33,170 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 11:22:33,171 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 11:22:33,172 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 11:22:33,172 INFO L185 Difference]: Start difference. First operand has 205 places, 137 transitions, 1146 flow. Second operand 18 states and 2458 transitions. [2021-03-24 11:22:33,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 149 transitions, 1536 flow [2021-03-24 11:22:33,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 149 transitions, 1471 flow, removed 5 selfloop flow, removed 14 redundant places. [2021-03-24 11:22:33,179 INFO L241 Difference]: Finished difference. Result has 200 places, 122 transitions, 982 flow [2021-03-24 11:22:33,179 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1085, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=982, PETRI_PLACES=200, PETRI_TRANSITIONS=122} [2021-03-24 11:22:33,179 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 134 predicate places. [2021-03-24 11:22:33,179 INFO L480 AbstractCegarLoop]: Abstraction has has 200 places, 122 transitions, 982 flow [2021-03-24 11:22:33,180 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 11:22:33,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:33,180 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 11:22:33,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-24 11:22:33,180 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 11:22:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:33,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1470600797, now seen corresponding path program 135 times [2021-03-24 11:22:33,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:33,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659996993] [2021-03-24 11:22:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:33,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:33,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:33,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:33,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:33,268 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:33,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:33,295 INFO L142 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size [2021-03-24 11:22:33,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:33,324 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 11:22:33,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:33,372 INFO L142 QuantifierPusher]: treesize reduction 20, result has 74.4 percent of original size [2021-03-24 11:22:33,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:22:33,428 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 11:22:33,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:33,452 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:22:33,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:22:33,476 INFO L142 QuantifierPusher]: treesize reduction 16, result has 74.2 percent of original size [2021-03-24 11:22:33,477 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:22:33,520 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:22:33,521 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:33,560 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 11:22:33,560 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:33,601 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-24 11:22:33,601 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:22:33,644 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-24 11:22:33,644 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:22:33,687 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 11:22:33,688 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 11:22:33,740 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.2 percent of original size [2021-03-24 11:22:33,740 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-24 11:22:33,792 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:22:33,793 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:22:33,813 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.9 percent of original size [2021-03-24 11:22:33,814 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:22:33,882 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:22:33,882 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:22:33,931 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 11:22:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:33,964 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:22:33,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:33,991 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:33,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:33,992 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:22:33,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:34,023 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:34,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:34,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:22:34,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:34,085 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:34,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:34,115 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 11:22:34,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659996993] [2021-03-24 11:22:34,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:34,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:34,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533999398] [2021-03-24 11:22:34,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:34,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:34,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:34,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:34,117 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:34,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 122 transitions, 982 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 11:22:34,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:34,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:34,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:35,013 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-03-24 11:22:35,185 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-24 11:22:35,396 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-24 11:22:35,691 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-03-24 11:22:36,398 INFO L129 PetriNetUnfolder]: 52/251 cut-off events. [2021-03-24 11:22:36,398 INFO L130 PetriNetUnfolder]: For 1226/1226 co-relation queries the response was YES. [2021-03-24 11:22:36,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 251 events. 52/251 cut-off events. For 1226/1226 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1133 event pairs, 18 based on Foata normal form. 1/252 useless extension candidates. Maximal degree in co-relation 1178. Up to 139 conditions per place. [2021-03-24 11:22:36,400 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 85 selfloop transitions, 17 changer transitions 24/135 dead transitions. [2021-03-24 11:22:36,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 135 transitions, 1354 flow [2021-03-24 11:22:36,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:36,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2457 transitions. [2021-03-24 11:22:36,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4910071942446043 [2021-03-24 11:22:36,402 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2457 transitions. [2021-03-24 11:22:36,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2457 transitions. [2021-03-24 11:22:36,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:36,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2457 transitions. [2021-03-24 11:22:36,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.5) internal successors, (2457), 18 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:36,405 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 11:22:36,406 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 11:22:36,406 INFO L185 Difference]: Start difference. First operand has 200 places, 122 transitions, 982 flow. Second operand 18 states and 2457 transitions. [2021-03-24 11:22:36,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 135 transitions, 1354 flow [2021-03-24 11:22:36,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 135 transitions, 1243 flow, removed 20 selfloop flow, removed 27 redundant places. [2021-03-24 11:22:36,412 INFO L241 Difference]: Finished difference. Result has 181 places, 110 transitions, 810 flow [2021-03-24 11:22:36,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=810, PETRI_PLACES=181, PETRI_TRANSITIONS=110} [2021-03-24 11:22:36,412 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 115 predicate places. [2021-03-24 11:22:36,412 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 110 transitions, 810 flow [2021-03-24 11:22:36,412 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 11:22:36,412 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:36,412 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 11:22:36,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-24 11:22:36,412 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 11:22:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:36,413 INFO L82 PathProgramCache]: Analyzing trace with hash -245321189, now seen corresponding path program 136 times [2021-03-24 11:22:36,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:36,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922849445] [2021-03-24 11:22:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:36,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:36,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:36,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:36,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:36,477 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:36,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:36,505 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:22:36,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:36,547 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:22:36,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:22:36,604 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:22:36,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:22:36,666 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:22:36,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:36,694 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:22:36,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:36,716 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:22:36,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:22:36,738 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:22:36,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:22:36,764 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:36,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:36,787 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:36,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:36,813 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:22:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:36,840 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:22:36,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:36,873 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:36,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:36,893 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:22:36,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:22:36,923 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:22:36,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:22:36,957 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:36,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:36,992 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:22:36,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:22:37,024 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:22:37,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:22:37,062 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:22:37,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:37,087 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:22:37,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:37,118 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:22:37,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:37,152 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:37,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:37,183 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:37,184 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:22:37,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:22:37,212 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 11:22:37,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922849445] [2021-03-24 11:22:37,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:37,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:22:37,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578186821] [2021-03-24 11:22:37,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:22:37,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:37,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:22:37,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:22:37,214 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:22:37,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 110 transitions, 810 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 11:22:37,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:37,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:22:37,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:38,411 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:22:39,159 INFO L129 PetriNetUnfolder]: 36/198 cut-off events. [2021-03-24 11:22:39,159 INFO L130 PetriNetUnfolder]: For 677/677 co-relation queries the response was YES. [2021-03-24 11:22:39,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 928 conditions, 198 events. 36/198 cut-off events. For 677/677 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 762 event pairs, 15 based on Foata normal form. 1/199 useless extension candidates. Maximal degree in co-relation 873. Up to 128 conditions per place. [2021-03-24 11:22:39,160 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 81 selfloop transitions, 19 changer transitions 14/119 dead transitions. [2021-03-24 11:22:39,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 119 transitions, 1099 flow [2021-03-24 11:22:39,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:39,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1590 transitions. [2021-03-24 11:22:39,162 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31774580335731417 [2021-03-24 11:22:39,162 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1590 transitions. [2021-03-24 11:22:39,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1590 transitions. [2021-03-24 11:22:39,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:39,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1590 transitions. [2021-03-24 11:22:39,163 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 11:22:39,165 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 11:22:39,165 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 11:22:39,165 INFO L185 Difference]: Start difference. First operand has 181 places, 110 transitions, 810 flow. Second operand 18 states and 1590 transitions. [2021-03-24 11:22:39,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 119 transitions, 1099 flow [2021-03-24 11:22:39,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 119 transitions, 1021 flow, removed 12 selfloop flow, removed 22 redundant places. [2021-03-24 11:22:39,169 INFO L241 Difference]: Finished difference. Result has 165 places, 104 transitions, 739 flow [2021-03-24 11:22:39,169 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=739, PETRI_PLACES=165, PETRI_TRANSITIONS=104} [2021-03-24 11:22:39,169 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 99 predicate places. [2021-03-24 11:22:39,169 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 104 transitions, 739 flow [2021-03-24 11:22:39,170 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 11:22:39,170 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:39,170 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 11:22:39,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-24 11:22:39,170 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 11:22:39,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:39,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1285704135, now seen corresponding path program 137 times [2021-03-24 11:22:39,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:39,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465525477] [2021-03-24 11:22:39,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:39,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:39,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:39,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:39,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:39,236 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:39,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:39,261 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:22:39,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:39,302 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:22:39,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:22:39,357 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:22:39,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:22:39,419 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:22:39,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:39,448 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:22:39,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:39,472 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:22:39,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:22:39,495 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:22:39,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:22:39,522 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:39,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:39,547 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:39,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:39,572 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:22:39,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:39,598 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:22:39,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:39,629 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:39,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:39,647 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:22:39,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:22:39,675 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:39,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:39,708 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:22:39,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:22:39,738 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:22:39,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:22:39,770 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:22:39,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:22:39,808 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:22:39,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:39,834 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:22:39,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:39,866 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:22:39,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:39,901 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:39,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:39,934 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:39,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:39,935 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:22:39,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:22:39,963 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 11:22:39,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465525477] [2021-03-24 11:22:39,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:39,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:22:39,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307676144] [2021-03-24 11:22:39,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:22:39,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:39,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:22:39,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:22:39,965 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:22:39,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 104 transitions, 739 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 11:22:39,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:39,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:22:39,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:40,840 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-03-24 11:22:41,062 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-03-24 11:22:41,526 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 11:22:41,759 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 11:22:42,083 INFO L129 PetriNetUnfolder]: 36/181 cut-off events. [2021-03-24 11:22:42,083 INFO L130 PetriNetUnfolder]: For 513/513 co-relation queries the response was YES. [2021-03-24 11:22:42,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 181 events. 36/181 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 628 event pairs, 15 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 780. Up to 110 conditions per place. [2021-03-24 11:22:42,084 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 70 selfloop transitions, 17 changer transitions 20/112 dead transitions. [2021-03-24 11:22:42,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 112 transitions, 1009 flow [2021-03-24 11:22:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1591 transitions. [2021-03-24 11:22:42,086 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3179456434852118 [2021-03-24 11:22:42,086 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1591 transitions. [2021-03-24 11:22:42,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1591 transitions. [2021-03-24 11:22:42,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:42,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1591 transitions. [2021-03-24 11:22:42,087 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 11:22:42,089 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 11:22:42,089 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 11:22:42,089 INFO L185 Difference]: Start difference. First operand has 165 places, 104 transitions, 739 flow. Second operand 18 states and 1591 transitions. [2021-03-24 11:22:42,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 112 transitions, 1009 flow [2021-03-24 11:22:42,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 112 transitions, 967 flow, removed 1 selfloop flow, removed 12 redundant places. [2021-03-24 11:22:42,093 INFO L241 Difference]: Finished difference. Result has 160 places, 90 transitions, 649 flow [2021-03-24 11:22:42,093 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=649, PETRI_PLACES=160, PETRI_TRANSITIONS=90} [2021-03-24 11:22:42,093 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 94 predicate places. [2021-03-24 11:22:42,093 INFO L480 AbstractCegarLoop]: Abstraction has has 160 places, 90 transitions, 649 flow [2021-03-24 11:22:42,093 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 11:22:42,093 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:42,093 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 11:22:42,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-24 11:22:42,093 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 11:22:42,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:42,093 INFO L82 PathProgramCache]: Analyzing trace with hash 297555019, now seen corresponding path program 138 times [2021-03-24 11:22:42,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:42,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066399146] [2021-03-24 11:22:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:42,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:42,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:42,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:42,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:42,157 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:42,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:42,185 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:22:42,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:42,227 INFO L142 QuantifierPusher]: treesize reduction 21, result has 72.7 percent of original size [2021-03-24 11:22:42,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 11:22:42,283 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-03-24 11:22:42,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 11:22:42,347 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-24 11:22:42,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:42,376 INFO L142 QuantifierPusher]: treesize reduction 17, result has 67.3 percent of original size [2021-03-24 11:22:42,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:42,400 INFO L142 QuantifierPusher]: treesize reduction 17, result has 64.6 percent of original size [2021-03-24 11:22:42,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:22:42,424 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.7 percent of original size [2021-03-24 11:22:42,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:22:42,451 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:42,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:42,475 INFO L142 QuantifierPusher]: treesize reduction 24, result has 54.7 percent of original size [2021-03-24 11:22:42,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:22:42,501 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:22:42,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:42,528 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:22:42,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:42,555 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 11:22:42,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:22:42,591 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:42,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:42,613 INFO L142 QuantifierPusher]: treesize reduction 29, result has 45.3 percent of original size [2021-03-24 11:22:42,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:22:42,646 INFO L142 QuantifierPusher]: treesize reduction 24, result has 55.6 percent of original size [2021-03-24 11:22:42,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:22:42,680 INFO L142 QuantifierPusher]: treesize reduction 17, result has 56.4 percent of original size [2021-03-24 11:22:42,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:22:42,712 INFO L142 QuantifierPusher]: treesize reduction 19, result has 56.8 percent of original size [2021-03-24 11:22:42,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:22:42,750 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:22:42,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:42,775 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:22:42,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:42,807 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-24 11:22:42,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:22:42,842 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:42,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:42,873 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:22:42,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:22:42,874 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:22:42,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:22:42,902 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 11:22:42,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066399146] [2021-03-24 11:22:42,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:42,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 11:22:42,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297758585] [2021-03-24 11:22:42,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 11:22:42,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:42,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 11:22:42,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 11:22:42,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 11:22:42,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 90 transitions, 649 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 11:22:42,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:42,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 11:22:42,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:43,801 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-03-24 11:22:43,972 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-03-24 11:22:44,228 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 11:22:44,532 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 11:22:44,733 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 11:22:45,037 INFO L129 PetriNetUnfolder]: 35/158 cut-off events. [2021-03-24 11:22:45,037 INFO L130 PetriNetUnfolder]: For 478/478 co-relation queries the response was YES. [2021-03-24 11:22:45,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 158 events. 35/158 cut-off events. For 478/478 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 494 event pairs, 15 based on Foata normal form. 1/159 useless extension candidates. Maximal degree in co-relation 689. Up to 105 conditions per place. [2021-03-24 11:22:45,038 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 60 selfloop transitions, 13 changer transitions 17/95 dead transitions. [2021-03-24 11:22:45,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 95 transitions, 859 flow [2021-03-24 11:22:45,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1585 transitions. [2021-03-24 11:22:45,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31674660271782573 [2021-03-24 11:22:45,040 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1585 transitions. [2021-03-24 11:22:45,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1585 transitions. [2021-03-24 11:22:45,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:45,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1585 transitions. [2021-03-24 11:22:45,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.05555555555556) internal successors, (1585), 18 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:45,064 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 11:22:45,064 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 11:22:45,065 INFO L185 Difference]: Start difference. First operand has 160 places, 90 transitions, 649 flow. Second operand 18 states and 1585 transitions. [2021-03-24 11:22:45,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 95 transitions, 859 flow [2021-03-24 11:22:45,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 95 transitions, 783 flow, removed 2 selfloop flow, removed 22 redundant places. [2021-03-24 11:22:45,067 INFO L241 Difference]: Finished difference. Result has 142 places, 78 transitions, 523 flow [2021-03-24 11:22:45,067 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=523, PETRI_PLACES=142, PETRI_TRANSITIONS=78} [2021-03-24 11:22:45,067 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 76 predicate places. [2021-03-24 11:22:45,068 INFO L480 AbstractCegarLoop]: Abstraction has has 142 places, 78 transitions, 523 flow [2021-03-24 11:22:45,068 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 11:22:45,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:45,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:45,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-24 11:22:45,068 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 11:22:45,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:45,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1034953151, now seen corresponding path program 139 times [2021-03-24 11:22:45,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:45,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366805226] [2021-03-24 11:22:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:45,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:45,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:45,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:45,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:45,132 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:45,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:45,160 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:22:45,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:45,189 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:22:45,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:45,237 INFO L142 QuantifierPusher]: treesize reduction 34, result has 63.0 percent of original size [2021-03-24 11:22:45,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 11:22:45,295 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 11:22:45,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:45,318 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:22:45,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:22:45,343 INFO L142 QuantifierPusher]: treesize reduction 19, result has 70.8 percent of original size [2021-03-24 11:22:45,343 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 11:22:45,387 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:22:45,388 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:45,427 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 11:22:45,427 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 11:22:45,468 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-03-24 11:22:45,469 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:22:45,511 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.1 percent of original size [2021-03-24 11:22:45,511 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 11:22:45,555 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.7 percent of original size [2021-03-24 11:22:45,556 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 11:22:45,609 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.2 percent of original size [2021-03-24 11:22:45,610 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-24 11:22:45,664 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:22:45,665 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:22:45,688 INFO L142 QuantifierPusher]: treesize reduction 44, result has 42.9 percent of original size [2021-03-24 11:22:45,689 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 11:22:45,737 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 11:22:45,737 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 11:22:45,789 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 11:22:45,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:45,822 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:22:45,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:22:45,849 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:45,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:45,850 INFO L142 QuantifierPusher]: treesize reduction 16, result has 51.5 percent of original size [2021-03-24 11:22:45,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:45,882 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:22:45,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:22:45,917 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:22:45,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:45,949 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:45,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:45,980 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 11:22:45,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366805226] [2021-03-24 11:22:45,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:45,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:45,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31646136] [2021-03-24 11:22:45,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:45,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:45,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:45,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:45,982 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:45,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 78 transitions, 523 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 11:22:45,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:45,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:45,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:46,763 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2021-03-24 11:22:46,905 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-03-24 11:22:47,082 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2021-03-24 11:22:47,278 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-24 11:22:47,508 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-03-24 11:22:48,206 INFO L129 PetriNetUnfolder]: 42/172 cut-off events. [2021-03-24 11:22:48,206 INFO L130 PetriNetUnfolder]: For 437/437 co-relation queries the response was YES. [2021-03-24 11:22:48,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 172 events. 42/172 cut-off events. For 437/437 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 596 event pairs, 16 based on Foata normal form. 1/173 useless extension candidates. Maximal degree in co-relation 692. Up to 78 conditions per place. [2021-03-24 11:22:48,207 INFO L132 encePairwiseOnDemand]: 261/278 looper letters, 42 selfloop transitions, 14 changer transitions 25/90 dead transitions. [2021-03-24 11:22:48,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 90 transitions, 765 flow [2021-03-24 11:22:48,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:48,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2446 transitions. [2021-03-24 11:22:48,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4888089528377298 [2021-03-24 11:22:48,210 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2446 transitions. [2021-03-24 11:22:48,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2446 transitions. [2021-03-24 11:22:48,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:48,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2446 transitions. [2021-03-24 11:22:48,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 135.88888888888889) internal successors, (2446), 18 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:48,213 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 11:22:48,213 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 11:22:48,213 INFO L185 Difference]: Start difference. First operand has 142 places, 78 transitions, 523 flow. Second operand 18 states and 2446 transitions. [2021-03-24 11:22:48,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 90 transitions, 765 flow [2021-03-24 11:22:48,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 90 transitions, 653 flow, removed 5 selfloop flow, removed 25 redundant places. [2021-03-24 11:22:48,216 INFO L241 Difference]: Finished difference. Result has 125 places, 65 transitions, 354 flow [2021-03-24 11:22:48,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=354, PETRI_PLACES=125, PETRI_TRANSITIONS=65} [2021-03-24 11:22:48,216 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 59 predicate places. [2021-03-24 11:22:48,216 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 65 transitions, 354 flow [2021-03-24 11:22:48,216 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 11:22:48,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:48,216 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 11:22:48,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-24 11:22:48,216 INFO L428 AbstractCegarLoop]: === Iteration 161 === [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 11:22:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:48,217 INFO L82 PathProgramCache]: Analyzing trace with hash 261682283, now seen corresponding path program 140 times [2021-03-24 11:22:48,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:48,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026677605] [2021-03-24 11:22:48,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:48,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:48,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:48,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:48,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:48,283 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:48,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:48,311 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:22:48,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:48,340 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:22:48,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:48,388 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:22:48,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:22:48,446 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:22:48,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:48,486 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:22:48,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:22:48,524 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:22:48,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:22:48,576 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:48,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:48,623 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:48,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:48,672 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:22:48,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:22:48,723 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:22:48,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:22:48,773 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.7 percent of original size [2021-03-24 11:22:48,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:22:48,837 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:22:48,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:22:48,866 INFO L142 QuantifierPusher]: treesize reduction 52, result has 50.5 percent of original size [2021-03-24 11:22:48,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:22:48,928 INFO L142 QuantifierPusher]: treesize reduction 81, result has 45.3 percent of original size [2021-03-24 11:22:48,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 11:22:48,999 INFO L142 QuantifierPusher]: treesize reduction 76, result has 49.0 percent of original size [2021-03-24 11:22:49,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 11:22:49,071 INFO L142 QuantifierPusher]: treesize reduction 41, result has 48.1 percent of original size [2021-03-24 11:22:49,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:49,124 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-24 11:22:49,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:49,158 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:22:49,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:49,159 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 11:22:49,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:49,207 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 11:22:49,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:49,265 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:22:49,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:49,299 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:49,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:49,331 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 11:22:49,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026677605] [2021-03-24 11:22:49,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:49,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:49,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022916436] [2021-03-24 11:22:49,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:49,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:49,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:49,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:49,333 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:49,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 65 transitions, 354 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 11:22:49,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:49,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:49,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:50,092 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2021-03-24 11:22:50,243 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-03-24 11:22:50,428 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-03-24 11:22:50,635 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-03-24 11:22:50,844 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-03-24 11:22:51,555 INFO L129 PetriNetUnfolder]: 33/145 cut-off events. [2021-03-24 11:22:51,555 INFO L130 PetriNetUnfolder]: For 284/284 co-relation queries the response was YES. [2021-03-24 11:22:51,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 145 events. 33/145 cut-off events. For 284/284 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 465 event pairs, 15 based on Foata normal form. 1/146 useless extension candidates. Maximal degree in co-relation 493. Up to 57 conditions per place. [2021-03-24 11:22:51,556 INFO L132 encePairwiseOnDemand]: 261/278 looper letters, 33 selfloop transitions, 13 changer transitions 22/77 dead transitions. [2021-03-24 11:22:51,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 77 transitions, 557 flow [2021-03-24 11:22:51,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:51,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:51,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2443 transitions. [2021-03-24 11:22:51,558 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48820943245403675 [2021-03-24 11:22:51,558 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2443 transitions. [2021-03-24 11:22:51,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2443 transitions. [2021-03-24 11:22:51,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:51,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2443 transitions. [2021-03-24 11:22:51,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 135.72222222222223) internal successors, (2443), 18 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:51,562 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 11:22:51,562 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 11:22:51,562 INFO L185 Difference]: Start difference. First operand has 125 places, 65 transitions, 354 flow. Second operand 18 states and 2443 transitions. [2021-03-24 11:22:51,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 77 transitions, 557 flow [2021-03-24 11:22:51,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 77 transitions, 487 flow, removed 13 selfloop flow, removed 25 redundant places. [2021-03-24 11:22:51,563 INFO L241 Difference]: Finished difference. Result has 109 places, 55 transitions, 248 flow [2021-03-24 11:22:51,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=248, PETRI_PLACES=109, PETRI_TRANSITIONS=55} [2021-03-24 11:22:51,564 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 43 predicate places. [2021-03-24 11:22:51,564 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 55 transitions, 248 flow [2021-03-24 11:22:51,564 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 11:22:51,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:22:51,564 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 11:22:51,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-24 11:22:51,564 INFO L428 AbstractCegarLoop]: === Iteration 162 === [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 11:22:51,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:22:51,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1442221581, now seen corresponding path program 141 times [2021-03-24 11:22:51,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:22:51,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586175731] [2021-03-24 11:22:51,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:22:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:22:51,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:51,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:22:51,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:22:51,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:22:51,629 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:22:51,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:51,657 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 11:22:51,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:22:51,686 INFO L142 QuantifierPusher]: treesize reduction 39, result has 53.0 percent of original size [2021-03-24 11:22:51,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:51,735 INFO L142 QuantifierPusher]: treesize reduction 38, result has 58.7 percent of original size [2021-03-24 11:22:51,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 11:22:51,792 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 11:22:51,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:22:51,828 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:22:51,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:22:51,863 INFO L142 QuantifierPusher]: treesize reduction 22, result has 71.4 percent of original size [2021-03-24 11:22:51,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:22:51,915 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:51,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:51,964 INFO L142 QuantifierPusher]: treesize reduction 22, result has 68.1 percent of original size [2021-03-24 11:22:51,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:22:52,014 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:22:52,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:22:52,068 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 11:22:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:22:52,133 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.7 percent of original size [2021-03-24 11:22:52,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 11:22:52,216 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:22:52,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:22:52,253 INFO L142 QuantifierPusher]: treesize reduction 52, result has 50.5 percent of original size [2021-03-24 11:22:52,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 11:22:52,327 INFO L142 QuantifierPusher]: treesize reduction 47, result has 55.7 percent of original size [2021-03-24 11:22:52,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 11:22:52,400 INFO L142 QuantifierPusher]: treesize reduction 28, result has 47.2 percent of original size [2021-03-24 11:22:52,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:22:52,435 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.9 percent of original size [2021-03-24 11:22:52,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:52,496 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.1 percent of original size [2021-03-24 11:22:52,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:22:52,533 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.1 percent of original size [2021-03-24 11:22:52,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:52,534 INFO L142 QuantifierPusher]: treesize reduction 41, result has 43.8 percent of original size [2021-03-24 11:22:52,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:22:52,590 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 11:22:52,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:22:52,662 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:22:52,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:22:52,704 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:22:52,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:22:52,741 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 11:22:52,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586175731] [2021-03-24 11:22:52,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:22:52,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 11:22:52,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174250229] [2021-03-24 11:22:52,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 11:22:52,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:22:52,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 11:22:52,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 11:22:52,743 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 11:22:52,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 55 transitions, 248 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 11:22:52,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:22:52,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 11:22:52,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:22:53,515 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-03-24 11:22:53,718 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2021-03-24 11:22:53,899 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2021-03-24 11:22:54,124 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-03-24 11:22:54,376 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-03-24 11:22:54,530 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-24 11:22:54,710 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-24 11:22:55,010 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 11:22:55,370 INFO L129 PetriNetUnfolder]: 18/87 cut-off events. [2021-03-24 11:22:55,370 INFO L130 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2021-03-24 11:22:55,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 87 events. 18/87 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 156 event pairs, 3 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 267. Up to 25 conditions per place. [2021-03-24 11:22:55,371 INFO L132 encePairwiseOnDemand]: 261/278 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2021-03-24 11:22:55,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 56 transitions, 343 flow [2021-03-24 11:22:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:22:55,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:22:55,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2433 transitions. [2021-03-24 11:22:55,372 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4862110311750599 [2021-03-24 11:22:55,372 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2433 transitions. [2021-03-24 11:22:55,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2433 transitions. [2021-03-24 11:22:55,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:22:55,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2433 transitions. [2021-03-24 11:22:55,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 135.16666666666666) internal successors, (2433), 18 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:22:55,376 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 11:22:55,377 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 11:22:55,377 INFO L185 Difference]: Start difference. First operand has 109 places, 55 transitions, 248 flow. Second operand 18 states and 2433 transitions. [2021-03-24 11:22:55,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 56 transitions, 343 flow [2021-03-24 11:22:55,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 56 transitions, 303 flow, removed 7 selfloop flow, removed 18 redundant places. [2021-03-24 11:22:55,378 INFO L241 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2021-03-24 11:22:55,378 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=0, PETRI_PLACES=96, PETRI_TRANSITIONS=0} [2021-03-24 11:22:55,378 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 30 predicate places. [2021-03-24 11:22:55,378 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2021-03-24 11:22:55,379 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 11:22:55,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-24 11:22:55,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:22:55 BasicIcfg [2021-03-24 11:22:55,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:22:55,383 INFO L168 Benchmark]: Toolchain (without parser) took 468619.10 ms. Allocated memory was 346.0 MB in the beginning and 2.0 GB in the end (delta: 1.6 GB). Free memory was 307.4 MB in the beginning and 1.2 GB in the end (delta: -923.3 MB). Peak memory consumption was 721.3 MB. Max. memory is 16.0 GB. [2021-03-24 11:22:55,383 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 346.0 MB. Free memory was 326.9 MB in the beginning and 326.9 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:22:55,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.56 ms. Allocated memory is still 346.0 MB. Free memory was 307.2 MB in the beginning and 189.2 MB in the end (delta: 118.0 MB). Peak memory consumption was 118.6 MB. Max. memory is 16.0 GB. [2021-03-24 11:22:55,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.51 ms. Allocated memory is still 346.0 MB. Free memory was 189.2 MB in the beginning and 186.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:22:55,383 INFO L168 Benchmark]: Boogie Preprocessor took 52.32 ms. Allocated memory is still 346.0 MB. Free memory was 186.1 MB in the beginning and 182.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:22:55,383 INFO L168 Benchmark]: RCFGBuilder took 461.21 ms. Allocated memory is still 346.0 MB. Free memory was 182.9 MB in the beginning and 134.7 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:22:55,383 INFO L168 Benchmark]: TraceAbstraction took 467266.18 ms. Allocated memory was 346.0 MB in the beginning and 2.0 GB in the end (delta: 1.6 GB). Free memory was 134.7 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 548.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:22:55,383 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 346.0 MB. Free memory was 326.9 MB in the beginning and 326.9 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 743.56 ms. Allocated memory is still 346.0 MB. Free memory was 307.2 MB in the beginning and 189.2 MB in the end (delta: 118.0 MB). Peak memory consumption was 118.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 82.51 ms. Allocated memory is still 346.0 MB. Free memory was 189.2 MB in the beginning and 186.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 52.32 ms. Allocated memory is still 346.0 MB. Free memory was 186.1 MB in the beginning and 182.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 461.21 ms. Allocated memory is still 346.0 MB. Free memory was 182.9 MB in the beginning and 134.7 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 467266.18 ms. Allocated memory was 346.0 MB in the beginning and 2.0 GB in the end (delta: 1.6 GB). Free memory was 134.7 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 548.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2346.2ms, 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: 1804, positive: 1718, positive conditional: 0, positive unconditional: 1718, 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: 1235, positive: 1205, positive conditional: 0, positive unconditional: 1205, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1235, positive: 1205, positive conditional: 0, positive unconditional: 1205, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1804, positive: 513, positive conditional: 0, positive unconditional: 513, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 1235, unknown conditional: 0, unknown unconditional: 1235] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 70, Positive conditional cache size: 0, Positive unconditional cache size: 70, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - 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: 2.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 467155.8ms, OverallIterations: 162, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 351616.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2462.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2584 SDtfs, 23440 SDslu, 11881 SDs, 0 SdLazy, 116952 SolverSat, 9210 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62182.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6127 GetRequests, 329 SyntacticMatches, 324 SemanticMatches, 5474 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26776 ImplicationChecksByTransitivity, 290961.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7752occurred in iteration=56, InterpolantAutomatonStates: 2810, 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: 247.9ms SsaConstructionTime, 2012.4ms SatisfiabilityAnalysisTime, 109647.2ms InterpolantComputationTime, 6490 NumberOfCodeBlocks, 6490 NumberOfCodeBlocksAsserted, 162 NumberOfCheckSat, 6328 ConstructedInterpolants, 0 QuantifiedInterpolants, 157511 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 162 InterpolantComputations, 162 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...