/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 07:37:02,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 07:37:02,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 07:37:02,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 07:37:02,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 07:37:02,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 07:37:02,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 07:37:02,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 07:37:02,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 07:37:02,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 07:37:02,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 07:37:02,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 07:37:02,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 07:37:02,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 07:37:02,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 07:37:02,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 07:37:02,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 07:37:02,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 07:37:02,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 07:37:02,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 07:37:02,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 07:37:02,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 07:37:02,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 07:37:02,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 07:37:02,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 07:37:02,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 07:37:02,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 07:37:02,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 07:37:02,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 07:37:02,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 07:37:02,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 07:37:02,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 07:37:02,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 07:37:02,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 07:37:02,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 07:37:02,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 07:37:02,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 07:37:02,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 07:37:02,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 07:37:02,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 07:37:02,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 07:37:02,768 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-RepeatedSemanticLbe.epf [2021-06-11 07:37:02,793 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 07:37:02,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 07:37:02,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 07:37:02,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 07:37:02,795 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 07:37:02,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 07:37:02,795 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 07:37:02,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 07:37:02,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 07:37:02,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 07:37:02,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 07:37:02,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 07:37:02,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 07:37:02,796 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 07:37:02,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 07:37:02,797 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 07:37:02,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 07:37:02,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 07:37:02,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 07:37:02,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 07:37:02,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 07:37:02,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 07:37:02,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 07:37:02,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 07:37:02,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 07:37:02,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 07:37:02,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 07:37:02,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 07:37:02,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 07:37:02,798 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 07:37:03,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 07:37:03,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 07:37:03,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 07:37:03,044 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 07:37:03,044 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 07:37:03,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2021-06-11 07:37:03,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2def78238/5ed77eb6313248b193d0771413c5e352/FLAG40f7e757d [2021-06-11 07:37:03,489 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 07:37:03,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2021-06-11 07:37:03,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2def78238/5ed77eb6313248b193d0771413c5e352/FLAG40f7e757d [2021-06-11 07:37:03,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2def78238/5ed77eb6313248b193d0771413c5e352 [2021-06-11 07:37:03,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 07:37:03,859 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 07:37:03,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 07:37:03,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 07:37:03,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 07:37:03,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 07:37:03" (1/1) ... [2021-06-11 07:37:03,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556b6188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:03, skipping insertion in model container [2021-06-11 07:37:03,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 07:37:03" (1/1) ... [2021-06-11 07:37:03,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 07:37:03,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 07:37:03,981 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-11 07:37:04,092 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2021-06-11 07:37:04,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 07:37:04,109 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 07:37:04,123 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-11 07:37:04,147 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2021-06-11 07:37:04,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 07:37:04,204 INFO L208 MainTranslator]: Completed translation [2021-06-11 07:37:04,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04 WrapperNode [2021-06-11 07:37:04,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 07:37:04,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 07:37:04,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 07:37:04,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 07:37:04,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 07:37:04,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 07:37:04,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 07:37:04,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 07:37:04,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (1/1) ... [2021-06-11 07:37:04,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 07:37:04,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 07:37:04,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 07:37:04,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 07:37:04,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (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 [2021-06-11 07:37:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-11 07:37:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 07:37:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-11 07:37:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 07:37:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 07:37:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 07:37:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-06-11 07:37:04,308 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-06-11 07:37:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 07:37:04,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 07:37:04,309 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 07:37:04,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 07:37:04,528 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-11 07:37:04,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:37:04 BoogieIcfgContainer [2021-06-11 07:37:04,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 07:37:04,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 07:37:04,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 07:37:04,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 07:37:04,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 07:37:03" (1/3) ... [2021-06-11 07:37:04,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458f9a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:37:04, skipping insertion in model container [2021-06-11 07:37:04,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 07:37:04" (2/3) ... [2021-06-11 07:37:04,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458f9a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:37:04, skipping insertion in model container [2021-06-11 07:37:04,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:37:04" (3/3) ... [2021-06-11 07:37:04,534 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2021-06-11 07:37:04,537 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 07:37:04,540 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 07:37:04,541 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 07:37:04,555 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,555 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,556 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,557 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,557 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,557 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,557 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,557 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,557 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,558 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,558 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,558 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,559 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,559 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,559 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,559 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,559 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,560 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 07:37:04,563 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-11 07:37:04,575 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 07:37:04,588 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 07:37:04,588 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 07:37:04,588 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 07:37:04,588 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 07:37:04,588 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 07:37:04,589 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 07:37:04,589 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 07:37:04,589 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 07:37:04,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 69 transitions, 146 flow [2021-06-11 07:37:04,616 INFO L129 PetriNetUnfolder]: 5/68 cut-off events. [2021-06-11 07:37:04,616 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-11 07:37:04,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 5/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2021-06-11 07:37:04,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 69 transitions, 146 flow [2021-06-11 07:37:04,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 62 transitions, 127 flow [2021-06-11 07:37:04,622 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:04,629 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 62 transitions, 127 flow [2021-06-11 07:37:04,632 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 62 transitions, 127 flow [2021-06-11 07:37:04,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 62 transitions, 127 flow [2021-06-11 07:37:04,642 INFO L129 PetriNetUnfolder]: 5/62 cut-off events. [2021-06-11 07:37:04,642 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:37:04,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 5/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2021-06-11 07:37:04,644 INFO L151 LiptonReduction]: Number of co-enabled transitions 352 [2021-06-11 07:37:04,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:04,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:04,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:04,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:04,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:04,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:04,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:04,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:04,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:04,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:04,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:37:04,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:04,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:05,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:05,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:05,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:37:05,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:05,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:05,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:37:05,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,219 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:05,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:05,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:37:05,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:05,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:05,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:05,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 07:37:05,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:05,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:05,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:05,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 07:37:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:05,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:06,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:06,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:37:06,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 07:37:06,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 07:37:06,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:06,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 07:37:06,356 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2021-06-11 07:37:06,530 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2021-06-11 07:37:06,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,596 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 07:37:06,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 07:37:06,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-06-11 07:37:06,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-11 07:37:06,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-06-11 07:37:06,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 07:37:06,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:06,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:06,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:06,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 07:37:06,993 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2021-06-11 07:37:07,099 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-06-11 07:37:07,327 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2021-06-11 07:37:07,438 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-06-11 07:37:07,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:07,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:07,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:07,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-11 07:37:07,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 07:37:07,805 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2021-06-11 07:37:07,963 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-06-11 07:37:08,308 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 150 [2021-06-11 07:37:08,475 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-06-11 07:37:08,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:08,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 07:37:08,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 07:37:08,489 INFO L163 LiptonReduction]: Checked pairs total: 302 [2021-06-11 07:37:08,489 INFO L165 LiptonReduction]: Total number of compositions: 58 [2021-06-11 07:37:08,491 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3870 [2021-06-11 07:37:08,496 INFO L129 PetriNetUnfolder]: 3/7 cut-off events. [2021-06-11 07:37:08,496 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:37:08,496 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:08,496 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-06-11 07:37:08,496 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:08,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:08,504 INFO L82 PathProgramCache]: Analyzing trace with hash 8131139, now seen corresponding path program 1 times [2021-06-11 07:37:08,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:08,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905085702] [2021-06-11 07:37:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:08,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:08,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905085702] [2021-06-11 07:37:08,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:37:08,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 07:37:08,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645772456] [2021-06-11 07:37:08,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 07:37:08,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:08,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 07:37:08,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 07:37:08,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 127 [2021-06-11 07:37:08,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 10 transitions, 23 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:08,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 127 [2021-06-11 07:37:08,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:08,689 INFO L129 PetriNetUnfolder]: 5/13 cut-off events. [2021-06-11 07:37:08,689 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:37:08,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 13 events. 5/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 19. Up to 8 conditions per place. [2021-06-11 07:37:08,689 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 3 selfloop transitions, 2 changer transitions 1/10 dead transitions. [2021-06-11 07:37:08,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 10 transitions, 35 flow [2021-06-11 07:37:08,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 07:37:08,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 07:37:08,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2021-06-11 07:37:08,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8293963254593176 [2021-06-11 07:37:08,697 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2021-06-11 07:37:08,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2021-06-11 07:37:08,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:08,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2021-06-11 07:37:08,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,705 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,706 INFO L185 Difference]: Start difference. First operand has 11 places, 10 transitions, 23 flow. Second operand 3 states and 316 transitions. [2021-06-11 07:37:08,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 10 transitions, 35 flow [2021-06-11 07:37:08,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 10 transitions, 34 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:08,722 INFO L241 Difference]: Finished difference. Result has 13 places, 8 transitions, 26 flow [2021-06-11 07:37:08,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=26, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2021-06-11 07:37:08,723 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 2 predicate places. [2021-06-11 07:37:08,724 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:08,724 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 13 places, 8 transitions, 26 flow [2021-06-11 07:37:08,724 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 13 places, 8 transitions, 26 flow [2021-06-11 07:37:08,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 12 places, 8 transitions, 26 flow [2021-06-11 07:37:08,725 INFO L129 PetriNetUnfolder]: 2/8 cut-off events. [2021-06-11 07:37:08,726 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:37:08,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 8 events. 2/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 9. Up to 3 conditions per place. [2021-06-11 07:37:08,726 INFO L151 LiptonReduction]: Number of co-enabled transitions 12 [2021-06-11 07:37:08,726 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 07:37:08,726 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:37:08,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-06-11 07:37:08,727 INFO L480 AbstractCegarLoop]: Abstraction has has 12 places, 8 transitions, 26 flow [2021-06-11 07:37:08,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:08,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-06-11 07:37:08,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 07:37:08,727 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:08,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:08,728 INFO L82 PathProgramCache]: Analyzing trace with hash -775927162, now seen corresponding path program 1 times [2021-06-11 07:37:08,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:08,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951125177] [2021-06-11 07:37:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:08,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:08,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951125177] [2021-06-11 07:37:08,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:37:08,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 07:37:08,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719210161] [2021-06-11 07:37:08,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 07:37:08,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:08,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 07:37:08,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 07:37:08,754 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2021-06-11 07:37:08,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:08,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2021-06-11 07:37:08,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:08,761 INFO L129 PetriNetUnfolder]: 2/9 cut-off events. [2021-06-11 07:37:08,761 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:37:08,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 9 events. 2/9 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 14. Up to 5 conditions per place. [2021-06-11 07:37:08,762 INFO L132 encePairwiseOnDemand]: 124/127 looper letters, 3 selfloop transitions, 2 changer transitions 0/9 dead transitions. [2021-06-11 07:37:08,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 9 transitions, 38 flow [2021-06-11 07:37:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 07:37:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 07:37:08,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-06-11 07:37:08,763 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8031496062992126 [2021-06-11 07:37:08,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-06-11 07:37:08,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-06-11 07:37:08,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:08,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-06-11 07:37:08,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,766 INFO L185 Difference]: Start difference. First operand has 12 places, 8 transitions, 26 flow. Second operand 3 states and 306 transitions. [2021-06-11 07:37:08,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 9 transitions, 38 flow [2021-06-11 07:37:08,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 9 transitions, 34 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 07:37:08,766 INFO L241 Difference]: Finished difference. Result has 13 places, 9 transitions, 34 flow [2021-06-11 07:37:08,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=13, PETRI_TRANSITIONS=9} [2021-06-11 07:37:08,767 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 2 predicate places. [2021-06-11 07:37:08,767 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:08,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 13 places, 9 transitions, 34 flow [2021-06-11 07:37:08,767 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 13 places, 9 transitions, 34 flow [2021-06-11 07:37:08,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 9 transitions, 34 flow [2021-06-11 07:37:08,769 INFO L129 PetriNetUnfolder]: 2/9 cut-off events. [2021-06-11 07:37:08,769 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-11 07:37:08,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 9 events. 2/9 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 14. Up to 4 conditions per place. [2021-06-11 07:37:08,769 INFO L151 LiptonReduction]: Number of co-enabled transitions 16 [2021-06-11 07:37:08,769 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 07:37:08,769 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:37:08,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-06-11 07:37:08,770 INFO L480 AbstractCegarLoop]: Abstraction has has 13 places, 9 transitions, 34 flow [2021-06-11 07:37:08,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,770 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:08,770 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:08,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 07:37:08,771 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:08,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:08,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1691395110, now seen corresponding path program 1 times [2021-06-11 07:37:08,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:08,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516416464] [2021-06-11 07:37:08,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:08,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:08,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516416464] [2021-06-11 07:37:08,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028172575] [2021-06-11 07:37:08,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:08,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-11 07:37:08,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:08,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:08,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:08,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:08,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:08,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:08,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:08,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,892 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:08,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:08,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:08,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-06-11 07:37:08,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964559611] [2021-06-11 07:37:08,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:08,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:08,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:08,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:08,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2021-06-11 07:37:08,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 9 transitions, 34 flow. Second operand has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:08,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2021-06-11 07:37:08,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:08,922 INFO L129 PetriNetUnfolder]: 2/10 cut-off events. [2021-06-11 07:37:08,922 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 07:37:08,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 10 events. 2/10 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 21. Up to 5 conditions per place. [2021-06-11 07:37:08,922 INFO L132 encePairwiseOnDemand]: 124/127 looper letters, 3 selfloop transitions, 3 changer transitions 0/10 dead transitions. [2021-06-11 07:37:08,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 10 transitions, 50 flow [2021-06-11 07:37:08,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 07:37:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 07:37:08,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 407 transitions. [2021-06-11 07:37:08,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8011811023622047 [2021-06-11 07:37:08,924 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 407 transitions. [2021-06-11 07:37:08,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 407 transitions. [2021-06-11 07:37:08,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:08,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 407 transitions. [2021-06-11 07:37:08,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.75) internal successors, (407), 4 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,927 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,927 INFO L185 Difference]: Start difference. First operand has 13 places, 9 transitions, 34 flow. Second operand 4 states and 407 transitions. [2021-06-11 07:37:08,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 10 transitions, 50 flow [2021-06-11 07:37:08,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 10 transitions, 46 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:08,928 INFO L241 Difference]: Finished difference. Result has 16 places, 10 transitions, 46 flow [2021-06-11 07:37:08,928 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=16, PETRI_TRANSITIONS=10} [2021-06-11 07:37:08,928 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 5 predicate places. [2021-06-11 07:37:08,928 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:08,928 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 10 transitions, 46 flow [2021-06-11 07:37:08,928 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 10 transitions, 46 flow [2021-06-11 07:37:08,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 16 places, 10 transitions, 46 flow [2021-06-11 07:37:08,930 INFO L129 PetriNetUnfolder]: 2/10 cut-off events. [2021-06-11 07:37:08,930 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-11 07:37:08,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 10 events. 2/10 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 20. Up to 5 conditions per place. [2021-06-11 07:37:08,930 INFO L151 LiptonReduction]: Number of co-enabled transitions 20 [2021-06-11 07:37:08,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:08,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:08,949 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:08,949 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:08,949 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-06-11 07:37:08,949 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 10 transitions, 48 flow [2021-06-11 07:37:08,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.2) internal successors, (506), 5 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:08,950 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:08,950 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:09,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-06-11 07:37:09,166 INFO L428 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:09,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:09,166 INFO L82 PathProgramCache]: Analyzing trace with hash 893969824, now seen corresponding path program 2 times [2021-06-11 07:37:09,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:09,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990050263] [2021-06-11 07:37:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:09,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:09,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990050263] [2021-06-11 07:37:09,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261844354] [2021-06-11 07:37:09,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:09,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 07:37:09,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 07:37:09,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:09,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:09,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:09,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:09,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:09,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:09,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:09,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:09,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,259 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:09,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:09,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:09,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:09,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:09,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:09,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,263 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:09,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:09,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:09,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-11 07:37:09,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310427506] [2021-06-11 07:37:09,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 07:37:09,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:09,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 07:37:09,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-06-11 07:37:09,268 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 128 [2021-06-11 07:37:09,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 10 transitions, 48 flow. Second operand has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:09,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 128 [2021-06-11 07:37:09,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:09,278 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-06-11 07:37:09,278 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-06-11 07:37:09,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 11 events. 2/11 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 30. Up to 6 conditions per place. [2021-06-11 07:37:09,278 INFO L132 encePairwiseOnDemand]: 124/128 looper letters, 3 selfloop transitions, 4 changer transitions 0/11 dead transitions. [2021-06-11 07:37:09,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 68 flow [2021-06-11 07:37:09,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 508 transitions. [2021-06-11 07:37:09,280 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.79375 [2021-06-11 07:37:09,280 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 508 transitions. [2021-06-11 07:37:09,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 508 transitions. [2021-06-11 07:37:09,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:09,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 508 transitions. [2021-06-11 07:37:09,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,284 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,284 INFO L185 Difference]: Start difference. First operand has 16 places, 10 transitions, 48 flow. Second operand 5 states and 508 transitions. [2021-06-11 07:37:09,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 68 flow [2021-06-11 07:37:09,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 11 transitions, 59 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:09,284 INFO L241 Difference]: Finished difference. Result has 20 places, 11 transitions, 59 flow [2021-06-11 07:37:09,285 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=59, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2021-06-11 07:37:09,285 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 9 predicate places. [2021-06-11 07:37:09,285 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:09,285 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 11 transitions, 59 flow [2021-06-11 07:37:09,285 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 11 transitions, 59 flow [2021-06-11 07:37:09,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 11 transitions, 59 flow [2021-06-11 07:37:09,287 INFO L129 PetriNetUnfolder]: 2/11 cut-off events. [2021-06-11 07:37:09,287 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 07:37:09,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 11 events. 2/11 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 27. Up to 5 conditions per place. [2021-06-11 07:37:09,287 INFO L151 LiptonReduction]: Number of co-enabled transitions 24 [2021-06-11 07:37:09,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,339 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:09,339 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:09,339 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-06-11 07:37:09,339 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 61 flow [2021-06-11 07:37:09,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,340 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:09,340 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:09,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:09,548 INFO L428 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:09,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1940910771, now seen corresponding path program 1 times [2021-06-11 07:37:09,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:09,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234554246] [2021-06-11 07:37:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:09,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 07:37:09,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:09,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234554246] [2021-06-11 07:37:09,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842298352] [2021-06-11 07:37:09,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:09,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:09,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:09,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,670 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:09,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:09,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:09,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:09,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:09,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:09,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,674 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:09,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:09,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:09,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:09,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:09,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,678 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:09,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:09,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-11 07:37:09,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385123669] [2021-06-11 07:37:09,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 07:37:09,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:09,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 07:37:09,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-06-11 07:37:09,683 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 129 [2021-06-11 07:37:09,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 61 flow. Second operand has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:09,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 129 [2021-06-11 07:37:09,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:09,701 INFO L129 PetriNetUnfolder]: 2/12 cut-off events. [2021-06-11 07:37:09,701 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-06-11 07:37:09,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 12 events. 2/12 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 10 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2021-06-11 07:37:09,701 INFO L132 encePairwiseOnDemand]: 124/129 looper letters, 3 selfloop transitions, 5 changer transitions 0/12 dead transitions. [2021-06-11 07:37:09,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 12 transitions, 85 flow [2021-06-11 07:37:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 07:37:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 07:37:09,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 609 transitions. [2021-06-11 07:37:09,703 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7868217054263565 [2021-06-11 07:37:09,703 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 609 transitions. [2021-06-11 07:37:09,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 609 transitions. [2021-06-11 07:37:09,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:09,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 609 transitions. [2021-06-11 07:37:09,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,706 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,706 INFO L185 Difference]: Start difference. First operand has 20 places, 11 transitions, 61 flow. Second operand 6 states and 609 transitions. [2021-06-11 07:37:09,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 12 transitions, 85 flow [2021-06-11 07:37:09,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 12 transitions, 73 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:09,707 INFO L241 Difference]: Finished difference. Result has 25 places, 12 transitions, 73 flow [2021-06-11 07:37:09,707 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=73, PETRI_PLACES=25, PETRI_TRANSITIONS=12} [2021-06-11 07:37:09,707 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 14 predicate places. [2021-06-11 07:37:09,707 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:09,708 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 12 transitions, 73 flow [2021-06-11 07:37:09,708 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 12 transitions, 73 flow [2021-06-11 07:37:09,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 12 transitions, 73 flow [2021-06-11 07:37:09,710 INFO L129 PetriNetUnfolder]: 2/12 cut-off events. [2021-06-11 07:37:09,710 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-06-11 07:37:09,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 12 events. 2/12 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 9 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 35. Up to 5 conditions per place. [2021-06-11 07:37:09,710 INFO L151 LiptonReduction]: Number of co-enabled transitions 28 [2021-06-11 07:37:09,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,735 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:09,735 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:09,736 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 07:37:09,737 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 12 transitions, 75 flow [2021-06-11 07:37:09,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 101.16666666666667) internal successors, (607), 6 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:09,738 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:09,738 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:09,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:09,941 INFO L428 AbstractCegarLoop]: === Iteration 6 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:09,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:09,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1706678906, now seen corresponding path program 1 times [2021-06-11 07:37:09,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:09,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226423587] [2021-06-11 07:37:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:09,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:09,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:09,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:09,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226423587] [2021-06-11 07:37:09,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236251515] [2021-06-11 07:37:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:10,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:10,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:10,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,074 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:10,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:10,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:10,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:10,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855529507] [2021-06-11 07:37:10,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:10,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:10,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:10,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:10,077 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 130 [2021-06-11 07:37:10,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 12 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:10,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 130 [2021-06-11 07:37:10,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:10,103 INFO L129 PetriNetUnfolder]: 2/13 cut-off events. [2021-06-11 07:37:10,103 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-06-11 07:37:10,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 13 events. 2/13 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 13 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 49. Up to 7 conditions per place. [2021-06-11 07:37:10,104 INFO L132 encePairwiseOnDemand]: 124/130 looper letters, 3 selfloop transitions, 6 changer transitions 0/13 dead transitions. [2021-06-11 07:37:10,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 13 transitions, 103 flow [2021-06-11 07:37:10,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 510 transitions. [2021-06-11 07:37:10,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7846153846153846 [2021-06-11 07:37:10,105 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 510 transitions. [2021-06-11 07:37:10,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 510 transitions. [2021-06-11 07:37:10,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:10,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 510 transitions. [2021-06-11 07:37:10,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,107 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,107 INFO L185 Difference]: Start difference. First operand has 25 places, 12 transitions, 75 flow. Second operand 5 states and 510 transitions. [2021-06-11 07:37:10,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 13 transitions, 103 flow [2021-06-11 07:37:10,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 13 transitions, 88 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:10,109 INFO L241 Difference]: Finished difference. Result has 29 places, 13 transitions, 88 flow [2021-06-11 07:37:10,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=88, PETRI_PLACES=29, PETRI_TRANSITIONS=13} [2021-06-11 07:37:10,109 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 18 predicate places. [2021-06-11 07:37:10,109 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:10,110 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 13 transitions, 88 flow [2021-06-11 07:37:10,110 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 13 transitions, 88 flow [2021-06-11 07:37:10,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 13 transitions, 88 flow [2021-06-11 07:37:10,112 INFO L129 PetriNetUnfolder]: 2/13 cut-off events. [2021-06-11 07:37:10,112 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-06-11 07:37:10,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 13 events. 2/13 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 17 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 44. Up to 6 conditions per place. [2021-06-11 07:37:10,114 INFO L151 LiptonReduction]: Number of co-enabled transitions 32 [2021-06-11 07:37:10,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,140 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:10,140 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:10,140 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 07:37:10,141 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 13 transitions, 90 flow [2021-06-11 07:37:10,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,141 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:10,141 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:10,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:10,357 INFO L428 AbstractCegarLoop]: === Iteration 7 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:10,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:10,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1707602427, now seen corresponding path program 1 times [2021-06-11 07:37:10,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:10,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554123830] [2021-06-11 07:37:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:10,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:10,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554123830] [2021-06-11 07:37:10,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518564317] [2021-06-11 07:37:10,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:10,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:10,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:10,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,452 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,464 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:10,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:10,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:10,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:10,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489093817] [2021-06-11 07:37:10,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:10,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:10,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:10,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:10,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 131 [2021-06-11 07:37:10,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 13 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:10,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 131 [2021-06-11 07:37:10,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:10,486 INFO L129 PetriNetUnfolder]: 2/14 cut-off events. [2021-06-11 07:37:10,487 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-06-11 07:37:10,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 14 events. 2/14 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 19 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 60. Up to 8 conditions per place. [2021-06-11 07:37:10,487 INFO L132 encePairwiseOnDemand]: 124/131 looper letters, 3 selfloop transitions, 7 changer transitions 0/14 dead transitions. [2021-06-11 07:37:10,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 14 transitions, 122 flow [2021-06-11 07:37:10,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 511 transitions. [2021-06-11 07:37:10,488 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7801526717557252 [2021-06-11 07:37:10,489 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 511 transitions. [2021-06-11 07:37:10,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 511 transitions. [2021-06-11 07:37:10,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:10,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 511 transitions. [2021-06-11 07:37:10,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.2) internal successors, (511), 5 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,491 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,491 INFO L185 Difference]: Start difference. First operand has 29 places, 13 transitions, 90 flow. Second operand 5 states and 511 transitions. [2021-06-11 07:37:10,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 14 transitions, 122 flow [2021-06-11 07:37:10,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 14 transitions, 104 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:10,493 INFO L241 Difference]: Finished difference. Result has 33 places, 14 transitions, 104 flow [2021-06-11 07:37:10,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=33, PETRI_TRANSITIONS=14} [2021-06-11 07:37:10,493 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 22 predicate places. [2021-06-11 07:37:10,493 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:10,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 14 transitions, 104 flow [2021-06-11 07:37:10,494 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 14 transitions, 104 flow [2021-06-11 07:37:10,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 14 transitions, 104 flow [2021-06-11 07:37:10,495 INFO L129 PetriNetUnfolder]: 2/14 cut-off events. [2021-06-11 07:37:10,495 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-06-11 07:37:10,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 14 events. 2/14 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 21 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 54. Up to 7 conditions per place. [2021-06-11 07:37:10,496 INFO L151 LiptonReduction]: Number of co-enabled transitions 36 [2021-06-11 07:37:10,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,524 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:10,524 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:10,524 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 07:37:10,541 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 14 transitions, 106 flow [2021-06-11 07:37:10,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,541 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:10,541 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:10,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-11 07:37:10,741 INFO L428 AbstractCegarLoop]: === Iteration 8 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:10,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:10,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1708525948, now seen corresponding path program 1 times [2021-06-11 07:37:10,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:10,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358553705] [2021-06-11 07:37:10,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:10,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:10,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358553705] [2021-06-11 07:37:10,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478968161] [2021-06-11 07:37:10,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:10,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:10,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:10,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:10,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:10,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:10,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,846 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:10,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:10,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:10,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:10,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:10,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727174955] [2021-06-11 07:37:10,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:10,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:10,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:10,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:10,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 132 [2021-06-11 07:37:10,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 14 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:10,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 132 [2021-06-11 07:37:10,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:10,868 INFO L129 PetriNetUnfolder]: 2/15 cut-off events. [2021-06-11 07:37:10,869 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-06-11 07:37:10,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 15 events. 2/15 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 22 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 72. Up to 9 conditions per place. [2021-06-11 07:37:10,869 INFO L132 encePairwiseOnDemand]: 124/132 looper letters, 3 selfloop transitions, 8 changer transitions 0/15 dead transitions. [2021-06-11 07:37:10,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 15 transitions, 142 flow [2021-06-11 07:37:10,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:10,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:10,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 512 transitions. [2021-06-11 07:37:10,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2021-06-11 07:37:10,870 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 512 transitions. [2021-06-11 07:37:10,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 512 transitions. [2021-06-11 07:37:10,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:10,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 512 transitions. [2021-06-11 07:37:10,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,872 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,872 INFO L185 Difference]: Start difference. First operand has 33 places, 14 transitions, 106 flow. Second operand 5 states and 512 transitions. [2021-06-11 07:37:10,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 15 transitions, 142 flow [2021-06-11 07:37:10,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 15 transitions, 121 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:10,875 INFO L241 Difference]: Finished difference. Result has 37 places, 15 transitions, 121 flow [2021-06-11 07:37:10,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=37, PETRI_TRANSITIONS=15} [2021-06-11 07:37:10,875 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 26 predicate places. [2021-06-11 07:37:10,875 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:10,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 15 transitions, 121 flow [2021-06-11 07:37:10,875 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 15 transitions, 121 flow [2021-06-11 07:37:10,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 15 transitions, 121 flow [2021-06-11 07:37:10,879 INFO L129 PetriNetUnfolder]: 2/15 cut-off events. [2021-06-11 07:37:10,879 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-06-11 07:37:10,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 15 events. 2/15 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 26 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 65. Up to 8 conditions per place. [2021-06-11 07:37:10,880 INFO L151 LiptonReduction]: Number of co-enabled transitions 40 [2021-06-11 07:37:10,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:10,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:10,905 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:10,905 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:10,905 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-06-11 07:37:10,905 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 15 transitions, 123 flow [2021-06-11 07:37:10,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:10,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:10,906 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:11,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:11,120 INFO L428 AbstractCegarLoop]: === Iteration 9 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:11,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:11,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1826394167, now seen corresponding path program 1 times [2021-06-11 07:37:11,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:11,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223334729] [2021-06-11 07:37:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:11,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:11,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223334729] [2021-06-11 07:37:11,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139387869] [2021-06-11 07:37:11,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:11,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:11,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:11,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,205 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:11,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:11,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:11,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:11,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205853301] [2021-06-11 07:37:11,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:11,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:11,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:11,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:11,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 133 [2021-06-11 07:37:11,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 15 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:11,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 133 [2021-06-11 07:37:11,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:11,239 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2021-06-11 07:37:11,239 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2021-06-11 07:37:11,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 16 events. 2/16 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 31 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 85. Up to 10 conditions per place. [2021-06-11 07:37:11,239 INFO L132 encePairwiseOnDemand]: 124/133 looper letters, 3 selfloop transitions, 9 changer transitions 0/16 dead transitions. [2021-06-11 07:37:11,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 16 transitions, 163 flow [2021-06-11 07:37:11,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:11,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 513 transitions. [2021-06-11 07:37:11,241 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2021-06-11 07:37:11,241 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 513 transitions. [2021-06-11 07:37:11,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 513 transitions. [2021-06-11 07:37:11,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:11,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 513 transitions. [2021-06-11 07:37:11,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,243 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,243 INFO L185 Difference]: Start difference. First operand has 37 places, 15 transitions, 123 flow. Second operand 5 states and 513 transitions. [2021-06-11 07:37:11,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 16 transitions, 163 flow [2021-06-11 07:37:11,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 16 transitions, 139 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:11,246 INFO L241 Difference]: Finished difference. Result has 41 places, 16 transitions, 139 flow [2021-06-11 07:37:11,246 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=139, PETRI_PLACES=41, PETRI_TRANSITIONS=16} [2021-06-11 07:37:11,246 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 30 predicate places. [2021-06-11 07:37:11,246 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:11,246 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 16 transitions, 139 flow [2021-06-11 07:37:11,246 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 16 transitions, 139 flow [2021-06-11 07:37:11,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 16 transitions, 139 flow [2021-06-11 07:37:11,248 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2021-06-11 07:37:11,248 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-06-11 07:37:11,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 16 events. 2/16 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 35 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 77. Up to 9 conditions per place. [2021-06-11 07:37:11,248 INFO L151 LiptonReduction]: Number of co-enabled transitions 44 [2021-06-11 07:37:11,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,272 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:11,272 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:11,272 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-06-11 07:37:11,273 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 16 transitions, 141 flow [2021-06-11 07:37:11,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:11,273 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:11,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:11,481 INFO L428 AbstractCegarLoop]: === Iteration 10 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:11,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:11,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1710372990, now seen corresponding path program 1 times [2021-06-11 07:37:11,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:11,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062877029] [2021-06-11 07:37:11,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:11,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:11,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062877029] [2021-06-11 07:37:11,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168650504] [2021-06-11 07:37:11,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:11,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:11,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:11,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,564 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:11,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:11,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:11,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:11,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822998050] [2021-06-11 07:37:11,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:11,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:11,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:11,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:11,566 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 134 [2021-06-11 07:37:11,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 16 transitions, 141 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:11,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 134 [2021-06-11 07:37:11,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:11,583 INFO L129 PetriNetUnfolder]: 2/17 cut-off events. [2021-06-11 07:37:11,583 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2021-06-11 07:37:11,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 17 events. 2/17 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 35 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 99. Up to 11 conditions per place. [2021-06-11 07:37:11,583 INFO L132 encePairwiseOnDemand]: 124/134 looper letters, 3 selfloop transitions, 10 changer transitions 0/17 dead transitions. [2021-06-11 07:37:11,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 17 transitions, 185 flow [2021-06-11 07:37:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:11,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:11,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 514 transitions. [2021-06-11 07:37:11,584 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7671641791044777 [2021-06-11 07:37:11,585 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 514 transitions. [2021-06-11 07:37:11,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 514 transitions. [2021-06-11 07:37:11,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:11,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 514 transitions. [2021-06-11 07:37:11,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,587 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,587 INFO L185 Difference]: Start difference. First operand has 41 places, 16 transitions, 141 flow. Second operand 5 states and 514 transitions. [2021-06-11 07:37:11,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 17 transitions, 185 flow [2021-06-11 07:37:11,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 17 transitions, 158 flow, removed 9 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:11,588 INFO L241 Difference]: Finished difference. Result has 45 places, 17 transitions, 158 flow [2021-06-11 07:37:11,588 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=45, PETRI_TRANSITIONS=17} [2021-06-11 07:37:11,588 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 34 predicate places. [2021-06-11 07:37:11,588 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:11,588 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 17 transitions, 158 flow [2021-06-11 07:37:11,589 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 17 transitions, 158 flow [2021-06-11 07:37:11,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 17 transitions, 158 flow [2021-06-11 07:37:11,594 INFO L129 PetriNetUnfolder]: 2/17 cut-off events. [2021-06-11 07:37:11,595 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-06-11 07:37:11,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 17 events. 2/17 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 38 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 90. Up to 10 conditions per place. [2021-06-11 07:37:11,595 INFO L151 LiptonReduction]: Number of co-enabled transitions 48 [2021-06-11 07:37:11,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,619 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:11,620 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:11,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 07:37:11,620 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 17 transitions, 160 flow [2021-06-11 07:37:11,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:11,620 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:11,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-11 07:37:11,829 INFO L428 AbstractCegarLoop]: === Iteration 11 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:11,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:11,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1769135865, now seen corresponding path program 1 times [2021-06-11 07:37:11,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:11,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496532818] [2021-06-11 07:37:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:11,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:11,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496532818] [2021-06-11 07:37:11,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36181041] [2021-06-11 07:37:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:11,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:11,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:11,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:11,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:11,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:11,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,905 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:11,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:11,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:11,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:11,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337261027] [2021-06-11 07:37:11,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:11,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:11,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:11,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:11,909 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 135 [2021-06-11 07:37:11,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 17 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:11,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 135 [2021-06-11 07:37:11,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:11,932 INFO L129 PetriNetUnfolder]: 2/18 cut-off events. [2021-06-11 07:37:11,933 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-06-11 07:37:11,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 18 events. 2/18 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 41 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 114. Up to 12 conditions per place. [2021-06-11 07:37:11,933 INFO L132 encePairwiseOnDemand]: 124/135 looper letters, 3 selfloop transitions, 11 changer transitions 0/18 dead transitions. [2021-06-11 07:37:11,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 18 transitions, 208 flow [2021-06-11 07:37:11,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 515 transitions. [2021-06-11 07:37:11,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.762962962962963 [2021-06-11 07:37:11,934 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 515 transitions. [2021-06-11 07:37:11,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 515 transitions. [2021-06-11 07:37:11,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:11,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 515 transitions. [2021-06-11 07:37:11,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,936 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,936 INFO L185 Difference]: Start difference. First operand has 45 places, 17 transitions, 160 flow. Second operand 5 states and 515 transitions. [2021-06-11 07:37:11,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 18 transitions, 208 flow [2021-06-11 07:37:11,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 18 transitions, 178 flow, removed 10 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:11,937 INFO L241 Difference]: Finished difference. Result has 49 places, 18 transitions, 178 flow [2021-06-11 07:37:11,937 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=49, PETRI_TRANSITIONS=18} [2021-06-11 07:37:11,938 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 38 predicate places. [2021-06-11 07:37:11,938 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:11,938 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 18 transitions, 178 flow [2021-06-11 07:37:11,938 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 18 transitions, 178 flow [2021-06-11 07:37:11,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 18 transitions, 178 flow [2021-06-11 07:37:11,939 INFO L129 PetriNetUnfolder]: 2/18 cut-off events. [2021-06-11 07:37:11,940 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2021-06-11 07:37:11,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 18 events. 2/18 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 51 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 104. Up to 11 conditions per place. [2021-06-11 07:37:11,940 INFO L151 LiptonReduction]: Number of co-enabled transitions 52 [2021-06-11 07:37:11,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:11,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:11,966 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:11,966 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:11,967 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 07:37:11,967 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 18 transitions, 180 flow [2021-06-11 07:37:11,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:11,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:11,967 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:12,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:12,183 INFO L428 AbstractCegarLoop]: === Iteration 12 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:12,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:12,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1740506714, now seen corresponding path program 1 times [2021-06-11 07:37:12,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:12,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430318151] [2021-06-11 07:37:12,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:12,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,201 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:12,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430318151] [2021-06-11 07:37:12,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494384804] [2021-06-11 07:37:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:12,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:12,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:12,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,253 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:12,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:12,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:12,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:12,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628937690] [2021-06-11 07:37:12,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:12,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:12,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:12,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:12,257 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 136 [2021-06-11 07:37:12,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 18 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,257 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:12,257 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 136 [2021-06-11 07:37:12,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:12,274 INFO L129 PetriNetUnfolder]: 2/19 cut-off events. [2021-06-11 07:37:12,274 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2021-06-11 07:37:12,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 19 events. 2/19 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 46 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 130. Up to 13 conditions per place. [2021-06-11 07:37:12,274 INFO L132 encePairwiseOnDemand]: 124/136 looper letters, 3 selfloop transitions, 12 changer transitions 0/19 dead transitions. [2021-06-11 07:37:12,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 19 transitions, 232 flow [2021-06-11 07:37:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:12,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 516 transitions. [2021-06-11 07:37:12,275 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7588235294117647 [2021-06-11 07:37:12,275 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 516 transitions. [2021-06-11 07:37:12,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 516 transitions. [2021-06-11 07:37:12,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:12,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 516 transitions. [2021-06-11 07:37:12,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,277 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,277 INFO L185 Difference]: Start difference. First operand has 49 places, 18 transitions, 180 flow. Second operand 5 states and 516 transitions. [2021-06-11 07:37:12,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 19 transitions, 232 flow [2021-06-11 07:37:12,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 19 transitions, 199 flow, removed 11 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:12,279 INFO L241 Difference]: Finished difference. Result has 53 places, 19 transitions, 199 flow [2021-06-11 07:37:12,279 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=53, PETRI_TRANSITIONS=19} [2021-06-11 07:37:12,279 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 42 predicate places. [2021-06-11 07:37:12,279 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:12,279 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 19 transitions, 199 flow [2021-06-11 07:37:12,279 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 19 transitions, 199 flow [2021-06-11 07:37:12,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 19 transitions, 199 flow [2021-06-11 07:37:12,281 INFO L129 PetriNetUnfolder]: 2/19 cut-off events. [2021-06-11 07:37:12,281 INFO L130 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2021-06-11 07:37:12,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 19 events. 2/19 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 56 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 119. Up to 12 conditions per place. [2021-06-11 07:37:12,281 INFO L151 LiptonReduction]: Number of co-enabled transitions 56 [2021-06-11 07:37:12,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,310 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:12,310 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:12,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 07:37:12,310 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 19 transitions, 201 flow [2021-06-11 07:37:12,311 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,311 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:12,311 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:12,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:12,517 INFO L428 AbstractCegarLoop]: === Iteration 13 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:12,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:12,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1711877563, now seen corresponding path program 1 times [2021-06-11 07:37:12,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:12,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909640876] [2021-06-11 07:37:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:12,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:12,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909640876] [2021-06-11 07:37:12,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178229848] [2021-06-11 07:37:12,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:12,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:12,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:12,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,605 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:12,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:12,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:12,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:12,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497238715] [2021-06-11 07:37:12,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:12,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:12,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:12,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:12,609 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 137 [2021-06-11 07:37:12,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 19 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:12,609 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 137 [2021-06-11 07:37:12,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:12,627 INFO L129 PetriNetUnfolder]: 2/20 cut-off events. [2021-06-11 07:37:12,628 INFO L130 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2021-06-11 07:37:12,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 20 events. 2/20 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 50 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 147. Up to 14 conditions per place. [2021-06-11 07:37:12,628 INFO L132 encePairwiseOnDemand]: 124/137 looper letters, 3 selfloop transitions, 13 changer transitions 0/20 dead transitions. [2021-06-11 07:37:12,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 20 transitions, 257 flow [2021-06-11 07:37:12,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:12,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 517 transitions. [2021-06-11 07:37:12,629 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7547445255474453 [2021-06-11 07:37:12,629 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 517 transitions. [2021-06-11 07:37:12,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 517 transitions. [2021-06-11 07:37:12,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:12,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 517 transitions. [2021-06-11 07:37:12,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,631 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,631 INFO L185 Difference]: Start difference. First operand has 53 places, 19 transitions, 201 flow. Second operand 5 states and 517 transitions. [2021-06-11 07:37:12,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 20 transitions, 257 flow [2021-06-11 07:37:12,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 20 transitions, 221 flow, removed 12 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:12,633 INFO L241 Difference]: Finished difference. Result has 57 places, 20 transitions, 221 flow [2021-06-11 07:37:12,633 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=57, PETRI_TRANSITIONS=20} [2021-06-11 07:37:12,633 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 46 predicate places. [2021-06-11 07:37:12,633 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:12,633 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 20 transitions, 221 flow [2021-06-11 07:37:12,633 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 20 transitions, 221 flow [2021-06-11 07:37:12,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 20 transitions, 221 flow [2021-06-11 07:37:12,635 INFO L129 PetriNetUnfolder]: 2/20 cut-off events. [2021-06-11 07:37:12,635 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-06-11 07:37:12,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 20 events. 2/20 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 59 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 135. Up to 13 conditions per place. [2021-06-11 07:37:12,635 INFO L151 LiptonReduction]: Number of co-enabled transitions 60 [2021-06-11 07:37:12,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,672 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:12,672 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:12,674 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-06-11 07:37:12,675 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 20 transitions, 223 flow [2021-06-11 07:37:12,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,675 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:12,675 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:12,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-11 07:37:12,889 INFO L428 AbstractCegarLoop]: === Iteration 14 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:12,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1714067074, now seen corresponding path program 1 times [2021-06-11 07:37:12,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:12,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330380981] [2021-06-11 07:37:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:12,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:12,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330380981] [2021-06-11 07:37:12,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580521097] [2021-06-11 07:37:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:12,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:12,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:12,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:12,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:12,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:12,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:12,985 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:12,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:12,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:12,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:12,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014124106] [2021-06-11 07:37:12,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:12,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:12,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:12,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:12,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 138 [2021-06-11 07:37:12,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 20 transitions, 223 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:12,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:12,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 138 [2021-06-11 07:37:12,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:13,008 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-06-11 07:37:13,009 INFO L130 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2021-06-11 07:37:13,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 21 events. 2/21 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 61 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 165. Up to 15 conditions per place. [2021-06-11 07:37:13,009 INFO L132 encePairwiseOnDemand]: 124/138 looper letters, 3 selfloop transitions, 14 changer transitions 0/21 dead transitions. [2021-06-11 07:37:13,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 21 transitions, 283 flow [2021-06-11 07:37:13,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:13,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:13,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 518 transitions. [2021-06-11 07:37:13,011 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7507246376811594 [2021-06-11 07:37:13,011 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 518 transitions. [2021-06-11 07:37:13,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 518 transitions. [2021-06-11 07:37:13,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:13,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 518 transitions. [2021-06-11 07:37:13,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,013 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,013 INFO L185 Difference]: Start difference. First operand has 57 places, 20 transitions, 223 flow. Second operand 5 states and 518 transitions. [2021-06-11 07:37:13,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 21 transitions, 283 flow [2021-06-11 07:37:13,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 21 transitions, 244 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:13,015 INFO L241 Difference]: Finished difference. Result has 61 places, 21 transitions, 244 flow [2021-06-11 07:37:13,015 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=244, PETRI_PLACES=61, PETRI_TRANSITIONS=21} [2021-06-11 07:37:13,015 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 50 predicate places. [2021-06-11 07:37:13,015 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:13,015 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 21 transitions, 244 flow [2021-06-11 07:37:13,015 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 21 transitions, 244 flow [2021-06-11 07:37:13,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 21 transitions, 244 flow [2021-06-11 07:37:13,018 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-06-11 07:37:13,018 INFO L130 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2021-06-11 07:37:13,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 21 events. 2/21 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 66 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 152. Up to 14 conditions per place. [2021-06-11 07:37:13,019 INFO L151 LiptonReduction]: Number of co-enabled transitions 64 [2021-06-11 07:37:13,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,050 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:13,050 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:13,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-06-11 07:37:13,051 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 21 transitions, 246 flow [2021-06-11 07:37:13,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:13,051 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:13,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-11 07:37:13,267 INFO L428 AbstractCegarLoop]: === Iteration 15 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:13,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:13,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1714990595, now seen corresponding path program 1 times [2021-06-11 07:37:13,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:13,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028973981] [2021-06-11 07:37:13,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:13,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:13,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028973981] [2021-06-11 07:37:13,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939530194] [2021-06-11 07:37:13,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:13,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:13,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:13,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,352 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:13,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:13,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:13,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959435559] [2021-06-11 07:37:13,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:13,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:13,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:13,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:13,355 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 139 [2021-06-11 07:37:13,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 21 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:13,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 139 [2021-06-11 07:37:13,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:13,377 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-06-11 07:37:13,378 INFO L130 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2021-06-11 07:37:13,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 22 events. 2/22 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 67 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 184. Up to 16 conditions per place. [2021-06-11 07:37:13,378 INFO L132 encePairwiseOnDemand]: 124/139 looper letters, 3 selfloop transitions, 15 changer transitions 0/22 dead transitions. [2021-06-11 07:37:13,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 22 transitions, 310 flow [2021-06-11 07:37:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:13,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 519 transitions. [2021-06-11 07:37:13,380 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7467625899280576 [2021-06-11 07:37:13,380 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 519 transitions. [2021-06-11 07:37:13,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 519 transitions. [2021-06-11 07:37:13,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:13,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 519 transitions. [2021-06-11 07:37:13,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 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) [2021-06-11 07:37:13,382 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 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) [2021-06-11 07:37:13,382 INFO L185 Difference]: Start difference. First operand has 61 places, 21 transitions, 246 flow. Second operand 5 states and 519 transitions. [2021-06-11 07:37:13,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 22 transitions, 310 flow [2021-06-11 07:37:13,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 22 transitions, 268 flow, removed 14 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:13,384 INFO L241 Difference]: Finished difference. Result has 65 places, 22 transitions, 268 flow [2021-06-11 07:37:13,384 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=268, PETRI_PLACES=65, PETRI_TRANSITIONS=22} [2021-06-11 07:37:13,384 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 54 predicate places. [2021-06-11 07:37:13,384 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:13,384 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 22 transitions, 268 flow [2021-06-11 07:37:13,384 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 22 transitions, 268 flow [2021-06-11 07:37:13,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 22 transitions, 268 flow [2021-06-11 07:37:13,386 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-06-11 07:37:13,386 INFO L130 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2021-06-11 07:37:13,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 22 events. 2/22 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 73 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 170. Up to 15 conditions per place. [2021-06-11 07:37:13,387 INFO L151 LiptonReduction]: Number of co-enabled transitions 68 [2021-06-11 07:37:13,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,412 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:13,412 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:13,412 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-06-11 07:37:13,412 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 22 transitions, 270 flow [2021-06-11 07:37:13,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,412 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:13,412 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:13,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-11 07:37:13,621 INFO L428 AbstractCegarLoop]: === Iteration 16 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:13,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:13,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1625990110, now seen corresponding path program 1 times [2021-06-11 07:37:13,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:13,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10582721] [2021-06-11 07:37:13,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:13,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:13,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10582721] [2021-06-11 07:37:13,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676269979] [2021-06-11 07:37:13,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:13,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:13,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:13,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:13,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:13,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:13,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,707 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:13,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:13,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:13,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:13,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769444781] [2021-06-11 07:37:13,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:13,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:13,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:13,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:13,711 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 140 [2021-06-11 07:37:13,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 22 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:13,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 140 [2021-06-11 07:37:13,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:13,747 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-06-11 07:37:13,747 INFO L130 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2021-06-11 07:37:13,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 23 events. 2/23 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 74 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 204. Up to 17 conditions per place. [2021-06-11 07:37:13,748 INFO L132 encePairwiseOnDemand]: 124/140 looper letters, 3 selfloop transitions, 16 changer transitions 0/23 dead transitions. [2021-06-11 07:37:13,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 23 transitions, 338 flow [2021-06-11 07:37:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:13,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:13,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 520 transitions. [2021-06-11 07:37:13,749 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2021-06-11 07:37:13,749 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 520 transitions. [2021-06-11 07:37:13,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 520 transitions. [2021-06-11 07:37:13,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:13,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 520 transitions. [2021-06-11 07:37:13,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,751 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,751 INFO L185 Difference]: Start difference. First operand has 65 places, 22 transitions, 270 flow. Second operand 5 states and 520 transitions. [2021-06-11 07:37:13,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 23 transitions, 338 flow [2021-06-11 07:37:13,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 23 transitions, 293 flow, removed 15 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:13,753 INFO L241 Difference]: Finished difference. Result has 69 places, 23 transitions, 293 flow [2021-06-11 07:37:13,753 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=293, PETRI_PLACES=69, PETRI_TRANSITIONS=23} [2021-06-11 07:37:13,753 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 58 predicate places. [2021-06-11 07:37:13,753 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:13,753 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 23 transitions, 293 flow [2021-06-11 07:37:13,753 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 23 transitions, 293 flow [2021-06-11 07:37:13,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 23 transitions, 293 flow [2021-06-11 07:37:13,755 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-06-11 07:37:13,755 INFO L130 PetriNetUnfolder]: For 105/105 co-relation queries the response was YES. [2021-06-11 07:37:13,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 23 events. 2/23 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 79 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 189. Up to 16 conditions per place. [2021-06-11 07:37:13,756 INFO L151 LiptonReduction]: Number of co-enabled transitions 72 [2021-06-11 07:37:13,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:13,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:13,782 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:13,783 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:13,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-06-11 07:37:13,783 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 23 transitions, 295 flow [2021-06-11 07:37:13,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:13,783 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:13,783 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:13,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:13,997 INFO L428 AbstractCegarLoop]: === Iteration 17 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:13,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:13,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1597360959, now seen corresponding path program 1 times [2021-06-11 07:37:13,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:13,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449414945] [2021-06-11 07:37:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:14,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:14,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449414945] [2021-06-11 07:37:14,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750564304] [2021-06-11 07:37:14,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:14,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:14,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:14,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,090 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:14,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:14,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:14,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:14,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881160267] [2021-06-11 07:37:14,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:14,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:14,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:14,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:14,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 141 [2021-06-11 07:37:14,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 23 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:14,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 141 [2021-06-11 07:37:14,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:14,114 INFO L129 PetriNetUnfolder]: 2/24 cut-off events. [2021-06-11 07:37:14,114 INFO L130 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2021-06-11 07:37:14,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 24 events. 2/24 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 77 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 225. Up to 18 conditions per place. [2021-06-11 07:37:14,114 INFO L132 encePairwiseOnDemand]: 124/141 looper letters, 3 selfloop transitions, 17 changer transitions 0/24 dead transitions. [2021-06-11 07:37:14,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 24 transitions, 367 flow [2021-06-11 07:37:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 521 transitions. [2021-06-11 07:37:14,116 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7390070921985815 [2021-06-11 07:37:14,116 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 521 transitions. [2021-06-11 07:37:14,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 521 transitions. [2021-06-11 07:37:14,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:14,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 521 transitions. [2021-06-11 07:37:14,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,118 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,118 INFO L185 Difference]: Start difference. First operand has 69 places, 23 transitions, 295 flow. Second operand 5 states and 521 transitions. [2021-06-11 07:37:14,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 24 transitions, 367 flow [2021-06-11 07:37:14,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 24 transitions, 319 flow, removed 16 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:14,119 INFO L241 Difference]: Finished difference. Result has 73 places, 24 transitions, 319 flow [2021-06-11 07:37:14,120 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=319, PETRI_PLACES=73, PETRI_TRANSITIONS=24} [2021-06-11 07:37:14,120 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 62 predicate places. [2021-06-11 07:37:14,120 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:14,120 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 24 transitions, 319 flow [2021-06-11 07:37:14,120 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 24 transitions, 319 flow [2021-06-11 07:37:14,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 24 transitions, 319 flow [2021-06-11 07:37:14,122 INFO L129 PetriNetUnfolder]: 2/24 cut-off events. [2021-06-11 07:37:14,122 INFO L130 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2021-06-11 07:37:14,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 24 events. 2/24 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 86 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 209. Up to 17 conditions per place. [2021-06-11 07:37:14,122 INFO L151 LiptonReduction]: Number of co-enabled transitions 76 [2021-06-11 07:37:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,166 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:14,166 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:14,166 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-06-11 07:37:14,167 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 24 transitions, 321 flow [2021-06-11 07:37:14,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,167 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:14,167 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:14,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-11 07:37:14,367 INFO L428 AbstractCegarLoop]: === Iteration 18 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:14,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:14,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1717761158, now seen corresponding path program 1 times [2021-06-11 07:37:14,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:14,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848980680] [2021-06-11 07:37:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:14,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:14,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848980680] [2021-06-11 07:37:14,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64411062] [2021-06-11 07:37:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:14,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:14,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:14,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,438 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:14,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:14,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:14,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:14,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358907936] [2021-06-11 07:37:14,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:14,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:14,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:14,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:14,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 142 [2021-06-11 07:37:14,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 24 transitions, 321 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:14,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 142 [2021-06-11 07:37:14,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:14,460 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-06-11 07:37:14,460 INFO L130 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2021-06-11 07:37:14,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 25 events. 2/25 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 90 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 247. Up to 19 conditions per place. [2021-06-11 07:37:14,461 INFO L132 encePairwiseOnDemand]: 124/142 looper letters, 3 selfloop transitions, 18 changer transitions 0/25 dead transitions. [2021-06-11 07:37:14,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 25 transitions, 397 flow [2021-06-11 07:37:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:14,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 522 transitions. [2021-06-11 07:37:14,462 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7352112676056338 [2021-06-11 07:37:14,462 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 522 transitions. [2021-06-11 07:37:14,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 522 transitions. [2021-06-11 07:37:14,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:14,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 522 transitions. [2021-06-11 07:37:14,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,464 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,464 INFO L185 Difference]: Start difference. First operand has 73 places, 24 transitions, 321 flow. Second operand 5 states and 522 transitions. [2021-06-11 07:37:14,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 25 transitions, 397 flow [2021-06-11 07:37:14,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 25 transitions, 346 flow, removed 17 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:14,466 INFO L241 Difference]: Finished difference. Result has 77 places, 25 transitions, 346 flow [2021-06-11 07:37:14,466 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=346, PETRI_PLACES=77, PETRI_TRANSITIONS=25} [2021-06-11 07:37:14,466 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 66 predicate places. [2021-06-11 07:37:14,466 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:14,466 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 25 transitions, 346 flow [2021-06-11 07:37:14,466 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 25 transitions, 346 flow [2021-06-11 07:37:14,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 25 transitions, 346 flow [2021-06-11 07:37:14,468 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-06-11 07:37:14,468 INFO L130 PetriNetUnfolder]: For 136/136 co-relation queries the response was YES. [2021-06-11 07:37:14,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 25 events. 2/25 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 99 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 230. Up to 18 conditions per place. [2021-06-11 07:37:14,469 INFO L151 LiptonReduction]: Number of co-enabled transitions 80 [2021-06-11 07:37:14,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,493 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:14,493 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:14,493 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-06-11 07:37:14,493 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 25 transitions, 348 flow [2021-06-11 07:37:14,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,494 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:14,494 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:14,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-11 07:37:14,701 INFO L428 AbstractCegarLoop]: === Iteration 19 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:14,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:14,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1540102657, now seen corresponding path program 1 times [2021-06-11 07:37:14,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:14,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814886717] [2021-06-11 07:37:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:14,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:14,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814886717] [2021-06-11 07:37:14,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452257593] [2021-06-11 07:37:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:14,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:14,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:14,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:14,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:14,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:14,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,774 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:14,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:14,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:14,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:14,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143937652] [2021-06-11 07:37:14,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:14,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:14,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:14,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:14,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 143 [2021-06-11 07:37:14,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 25 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:14,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 143 [2021-06-11 07:37:14,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:14,804 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-06-11 07:37:14,804 INFO L130 PetriNetUnfolder]: For 159/159 co-relation queries the response was YES. [2021-06-11 07:37:14,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 26 events. 2/26 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 101 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 270. Up to 20 conditions per place. [2021-06-11 07:37:14,805 INFO L132 encePairwiseOnDemand]: 124/143 looper letters, 3 selfloop transitions, 19 changer transitions 0/26 dead transitions. [2021-06-11 07:37:14,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 26 transitions, 428 flow [2021-06-11 07:37:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:14,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 523 transitions. [2021-06-11 07:37:14,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7314685314685314 [2021-06-11 07:37:14,806 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 523 transitions. [2021-06-11 07:37:14,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 523 transitions. [2021-06-11 07:37:14,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:14,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 523 transitions. [2021-06-11 07:37:14,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,808 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,808 INFO L185 Difference]: Start difference. First operand has 77 places, 25 transitions, 348 flow. Second operand 5 states and 523 transitions. [2021-06-11 07:37:14,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 26 transitions, 428 flow [2021-06-11 07:37:14,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 26 transitions, 374 flow, removed 18 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:14,810 INFO L241 Difference]: Finished difference. Result has 81 places, 26 transitions, 374 flow [2021-06-11 07:37:14,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=374, PETRI_PLACES=81, PETRI_TRANSITIONS=26} [2021-06-11 07:37:14,810 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 70 predicate places. [2021-06-11 07:37:14,810 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:14,810 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 26 transitions, 374 flow [2021-06-11 07:37:14,811 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 26 transitions, 374 flow [2021-06-11 07:37:14,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 26 transitions, 374 flow [2021-06-11 07:37:14,813 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-06-11 07:37:14,813 INFO L130 PetriNetUnfolder]: For 153/153 co-relation queries the response was YES. [2021-06-11 07:37:14,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 26 events. 2/26 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 95 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 252. Up to 19 conditions per place. [2021-06-11 07:37:14,813 INFO L151 LiptonReduction]: Number of co-enabled transitions 84 [2021-06-11 07:37:14,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:14,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:14,840 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:14,840 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:14,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-06-11 07:37:14,841 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 26 transitions, 376 flow [2021-06-11 07:37:14,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:14,841 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:14,841 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:15,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:15,048 INFO L428 AbstractCegarLoop]: === Iteration 20 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:15,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:15,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1719608200, now seen corresponding path program 1 times [2021-06-11 07:37:15,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:15,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371572906] [2021-06-11 07:37:15,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:15,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:15,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371572906] [2021-06-11 07:37:15,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417152546] [2021-06-11 07:37:15,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:15,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:15,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:15,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,132 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,138 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:15,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:15,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:15,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:15,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799779124] [2021-06-11 07:37:15,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:15,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:15,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:15,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:15,140 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 144 [2021-06-11 07:37:15,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 26 transitions, 376 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:15,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 144 [2021-06-11 07:37:15,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:15,164 INFO L129 PetriNetUnfolder]: 2/27 cut-off events. [2021-06-11 07:37:15,164 INFO L130 PetriNetUnfolder]: For 177/177 co-relation queries the response was YES. [2021-06-11 07:37:15,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 27 events. 2/27 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 101 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 294. Up to 21 conditions per place. [2021-06-11 07:37:15,164 INFO L132 encePairwiseOnDemand]: 124/144 looper letters, 3 selfloop transitions, 20 changer transitions 0/27 dead transitions. [2021-06-11 07:37:15,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 27 transitions, 460 flow [2021-06-11 07:37:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:15,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 524 transitions. [2021-06-11 07:37:15,165 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7277777777777777 [2021-06-11 07:37:15,166 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 524 transitions. [2021-06-11 07:37:15,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 524 transitions. [2021-06-11 07:37:15,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:15,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 524 transitions. [2021-06-11 07:37:15,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,167 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 144.0) internal successors, (864), 6 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,167 INFO L185 Difference]: Start difference. First operand has 81 places, 26 transitions, 376 flow. Second operand 5 states and 524 transitions. [2021-06-11 07:37:15,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 27 transitions, 460 flow [2021-06-11 07:37:15,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 27 transitions, 403 flow, removed 19 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:15,169 INFO L241 Difference]: Finished difference. Result has 85 places, 27 transitions, 403 flow [2021-06-11 07:37:15,170 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=403, PETRI_PLACES=85, PETRI_TRANSITIONS=27} [2021-06-11 07:37:15,170 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 74 predicate places. [2021-06-11 07:37:15,170 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:15,170 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 27 transitions, 403 flow [2021-06-11 07:37:15,170 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 27 transitions, 403 flow [2021-06-11 07:37:15,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 27 transitions, 403 flow [2021-06-11 07:37:15,172 INFO L129 PetriNetUnfolder]: 2/27 cut-off events. [2021-06-11 07:37:15,172 INFO L130 PetriNetUnfolder]: For 171/171 co-relation queries the response was YES. [2021-06-11 07:37:15,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 27 events. 2/27 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 117 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 275. Up to 20 conditions per place. [2021-06-11 07:37:15,173 INFO L151 LiptonReduction]: Number of co-enabled transitions 88 [2021-06-11 07:37:15,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,200 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:15,200 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:15,200 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-06-11 07:37:15,200 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 27 transitions, 405 flow [2021-06-11 07:37:15,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,200 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:15,200 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:15,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:15,415 INFO L428 AbstractCegarLoop]: === Iteration 21 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:15,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:15,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1720531721, now seen corresponding path program 1 times [2021-06-11 07:37:15,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:15,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473314456] [2021-06-11 07:37:15,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:15,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:15,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473314456] [2021-06-11 07:37:15,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656717039] [2021-06-11 07:37:15,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:15,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:15,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:15,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,492 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:15,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:15,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:15,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:15,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221667008] [2021-06-11 07:37:15,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:15,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:15,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:15,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:15,494 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 145 [2021-06-11 07:37:15,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 27 transitions, 405 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:15,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 145 [2021-06-11 07:37:15,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:15,521 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-06-11 07:37:15,522 INFO L130 PetriNetUnfolder]: For 196/196 co-relation queries the response was YES. [2021-06-11 07:37:15,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 28 events. 2/28 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 111 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 319. Up to 22 conditions per place. [2021-06-11 07:37:15,522 INFO L132 encePairwiseOnDemand]: 124/145 looper letters, 3 selfloop transitions, 21 changer transitions 0/28 dead transitions. [2021-06-11 07:37:15,522 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 28 transitions, 493 flow [2021-06-11 07:37:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:15,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:15,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 525 transitions. [2021-06-11 07:37:15,524 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2021-06-11 07:37:15,524 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 525 transitions. [2021-06-11 07:37:15,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 525 transitions. [2021-06-11 07:37:15,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:15,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 525 transitions. [2021-06-11 07:37:15,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.0) internal successors, (525), 5 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,527 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,527 INFO L185 Difference]: Start difference. First operand has 85 places, 27 transitions, 405 flow. Second operand 5 states and 525 transitions. [2021-06-11 07:37:15,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 28 transitions, 493 flow [2021-06-11 07:37:15,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 28 transitions, 433 flow, removed 20 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:15,529 INFO L241 Difference]: Finished difference. Result has 89 places, 28 transitions, 433 flow [2021-06-11 07:37:15,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=433, PETRI_PLACES=89, PETRI_TRANSITIONS=28} [2021-06-11 07:37:15,529 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 78 predicate places. [2021-06-11 07:37:15,529 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:15,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 28 transitions, 433 flow [2021-06-11 07:37:15,530 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 28 transitions, 433 flow [2021-06-11 07:37:15,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 28 transitions, 433 flow [2021-06-11 07:37:15,532 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-06-11 07:37:15,532 INFO L130 PetriNetUnfolder]: For 190/190 co-relation queries the response was YES. [2021-06-11 07:37:15,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 28 events. 2/28 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 124 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 299. Up to 21 conditions per place. [2021-06-11 07:37:15,533 INFO L151 LiptonReduction]: Number of co-enabled transitions 92 [2021-06-11 07:37:15,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,558 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:15,558 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:15,558 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 07:37:15,559 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 28 transitions, 435 flow [2021-06-11 07:37:15,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,559 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:15,559 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:15,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:15,769 INFO L428 AbstractCegarLoop]: === Iteration 22 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:15,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:15,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1721455242, now seen corresponding path program 1 times [2021-06-11 07:37:15,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:15,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298379562] [2021-06-11 07:37:15,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:15,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:15,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298379562] [2021-06-11 07:37:15,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126608175] [2021-06-11 07:37:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:15,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:15,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:15,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:15,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:15,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:15,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,847 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:15,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:15,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:15,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:15,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469388784] [2021-06-11 07:37:15,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:15,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:15,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:15,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:15,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 146 [2021-06-11 07:37:15,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 28 transitions, 435 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:15,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 146 [2021-06-11 07:37:15,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:15,874 INFO L129 PetriNetUnfolder]: 2/29 cut-off events. [2021-06-11 07:37:15,874 INFO L130 PetriNetUnfolder]: For 216/216 co-relation queries the response was YES. [2021-06-11 07:37:15,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 29 events. 2/29 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 119 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 345. Up to 23 conditions per place. [2021-06-11 07:37:15,875 INFO L132 encePairwiseOnDemand]: 124/146 looper letters, 3 selfloop transitions, 22 changer transitions 0/29 dead transitions. [2021-06-11 07:37:15,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 29 transitions, 527 flow [2021-06-11 07:37:15,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:15,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 526 transitions. [2021-06-11 07:37:15,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7205479452054795 [2021-06-11 07:37:15,876 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 526 transitions. [2021-06-11 07:37:15,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 526 transitions. [2021-06-11 07:37:15,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:15,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 526 transitions. [2021-06-11 07:37:15,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,878 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,878 INFO L185 Difference]: Start difference. First operand has 89 places, 28 transitions, 435 flow. Second operand 5 states and 526 transitions. [2021-06-11 07:37:15,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 29 transitions, 527 flow [2021-06-11 07:37:15,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 29 transitions, 464 flow, removed 21 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:15,880 INFO L241 Difference]: Finished difference. Result has 93 places, 29 transitions, 464 flow [2021-06-11 07:37:15,880 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=464, PETRI_PLACES=93, PETRI_TRANSITIONS=29} [2021-06-11 07:37:15,880 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 82 predicate places. [2021-06-11 07:37:15,880 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:15,881 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 29 transitions, 464 flow [2021-06-11 07:37:15,881 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 29 transitions, 464 flow [2021-06-11 07:37:15,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 29 transitions, 464 flow [2021-06-11 07:37:15,883 INFO L129 PetriNetUnfolder]: 2/29 cut-off events. [2021-06-11 07:37:15,883 INFO L130 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2021-06-11 07:37:15,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 29 events. 2/29 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 137 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 324. Up to 22 conditions per place. [2021-06-11 07:37:15,884 INFO L151 LiptonReduction]: Number of co-enabled transitions 96 [2021-06-11 07:37:15,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:15,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:15,911 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:15,911 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:15,911 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 07:37:15,912 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 29 transitions, 466 flow [2021-06-11 07:37:15,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:15,912 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:15,912 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:16,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-11 07:37:16,125 INFO L428 AbstractCegarLoop]: === Iteration 23 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:16,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:16,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1425586053, now seen corresponding path program 1 times [2021-06-11 07:37:16,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:16,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570105639] [2021-06-11 07:37:16,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:16,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:16,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570105639] [2021-06-11 07:37:16,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440477777] [2021-06-11 07:37:16,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:16,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:16,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:16,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,195 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:16,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:16,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:16,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:16,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860515824] [2021-06-11 07:37:16,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:16,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:16,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:16,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:16,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 147 [2021-06-11 07:37:16,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 29 transitions, 466 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:16,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 147 [2021-06-11 07:37:16,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:16,223 INFO L129 PetriNetUnfolder]: 2/30 cut-off events. [2021-06-11 07:37:16,223 INFO L130 PetriNetUnfolder]: For 237/237 co-relation queries the response was YES. [2021-06-11 07:37:16,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 30 events. 2/30 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 130 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 372. Up to 24 conditions per place. [2021-06-11 07:37:16,224 INFO L132 encePairwiseOnDemand]: 124/147 looper letters, 3 selfloop transitions, 23 changer transitions 0/30 dead transitions. [2021-06-11 07:37:16,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 30 transitions, 562 flow [2021-06-11 07:37:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:16,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 527 transitions. [2021-06-11 07:37:16,225 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7170068027210884 [2021-06-11 07:37:16,225 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 527 transitions. [2021-06-11 07:37:16,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 527 transitions. [2021-06-11 07:37:16,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:16,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 527 transitions. [2021-06-11 07:37:16,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,227 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,227 INFO L185 Difference]: Start difference. First operand has 93 places, 29 transitions, 466 flow. Second operand 5 states and 527 transitions. [2021-06-11 07:37:16,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 30 transitions, 562 flow [2021-06-11 07:37:16,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 30 transitions, 496 flow, removed 22 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:16,229 INFO L241 Difference]: Finished difference. Result has 97 places, 30 transitions, 496 flow [2021-06-11 07:37:16,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=496, PETRI_PLACES=97, PETRI_TRANSITIONS=30} [2021-06-11 07:37:16,229 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 86 predicate places. [2021-06-11 07:37:16,230 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:16,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 30 transitions, 496 flow [2021-06-11 07:37:16,230 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 30 transitions, 496 flow [2021-06-11 07:37:16,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 30 transitions, 496 flow [2021-06-11 07:37:16,232 INFO L129 PetriNetUnfolder]: 2/30 cut-off events. [2021-06-11 07:37:16,232 INFO L130 PetriNetUnfolder]: For 231/231 co-relation queries the response was YES. [2021-06-11 07:37:16,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 30 events. 2/30 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 141 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 350. Up to 23 conditions per place. [2021-06-11 07:37:16,233 INFO L151 LiptonReduction]: Number of co-enabled transitions 100 [2021-06-11 07:37:16,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,260 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:16,260 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:16,261 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 07:37:16,261 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 30 transitions, 498 flow [2021-06-11 07:37:16,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:16,261 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:16,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-06-11 07:37:16,470 INFO L428 AbstractCegarLoop]: === Iteration 24 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:16,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:16,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1396956902, now seen corresponding path program 1 times [2021-06-11 07:37:16,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:16,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817913747] [2021-06-11 07:37:16,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:16,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:16,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817913747] [2021-06-11 07:37:16,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568509399] [2021-06-11 07:37:16,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:16,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:16,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:16,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,541 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:16,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:16,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:16,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:16,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846277237] [2021-06-11 07:37:16,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:16,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:16,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:16,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:16,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 148 [2021-06-11 07:37:16,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 30 transitions, 498 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:16,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 148 [2021-06-11 07:37:16,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:16,574 INFO L129 PetriNetUnfolder]: 2/31 cut-off events. [2021-06-11 07:37:16,574 INFO L130 PetriNetUnfolder]: For 259/259 co-relation queries the response was YES. [2021-06-11 07:37:16,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 31 events. 2/31 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 135 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 400. Up to 25 conditions per place. [2021-06-11 07:37:16,574 INFO L132 encePairwiseOnDemand]: 124/148 looper letters, 3 selfloop transitions, 24 changer transitions 0/31 dead transitions. [2021-06-11 07:37:16,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 31 transitions, 598 flow [2021-06-11 07:37:16,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:16,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2021-06-11 07:37:16,575 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7135135135135136 [2021-06-11 07:37:16,575 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2021-06-11 07:37:16,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2021-06-11 07:37:16,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:16,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2021-06-11 07:37:16,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.6) internal successors, (528), 5 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,577 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,577 INFO L185 Difference]: Start difference. First operand has 97 places, 30 transitions, 498 flow. Second operand 5 states and 528 transitions. [2021-06-11 07:37:16,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 31 transitions, 598 flow [2021-06-11 07:37:16,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 31 transitions, 529 flow, removed 23 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:16,580 INFO L241 Difference]: Finished difference. Result has 101 places, 31 transitions, 529 flow [2021-06-11 07:37:16,581 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=529, PETRI_PLACES=101, PETRI_TRANSITIONS=31} [2021-06-11 07:37:16,581 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 90 predicate places. [2021-06-11 07:37:16,581 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:16,581 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 31 transitions, 529 flow [2021-06-11 07:37:16,581 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 31 transitions, 529 flow [2021-06-11 07:37:16,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 31 transitions, 529 flow [2021-06-11 07:37:16,584 INFO L129 PetriNetUnfolder]: 2/31 cut-off events. [2021-06-11 07:37:16,584 INFO L130 PetriNetUnfolder]: For 253/253 co-relation queries the response was YES. [2021-06-11 07:37:16,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 31 events. 2/31 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 148 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 377. Up to 24 conditions per place. [2021-06-11 07:37:16,584 INFO L151 LiptonReduction]: Number of co-enabled transitions 104 [2021-06-11 07:37:16,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,613 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:16,613 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:16,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 07:37:16,614 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 31 transitions, 531 flow [2021-06-11 07:37:16,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:16,614 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:16,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:16,830 INFO L428 AbstractCegarLoop]: === Iteration 25 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:16,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:16,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1368327751, now seen corresponding path program 1 times [2021-06-11 07:37:16,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:16,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200672560] [2021-06-11 07:37:16,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:16,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:16,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200672560] [2021-06-11 07:37:16,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525600111] [2021-06-11 07:37:16,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:16,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:16,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:16,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:16,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:16,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:16,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,903 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:16,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:16,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:16,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:16,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813775027] [2021-06-11 07:37:16,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:16,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:16,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:16,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:16,906 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 149 [2021-06-11 07:37:16,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 31 transitions, 531 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:16,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 149 [2021-06-11 07:37:16,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:16,932 INFO L129 PetriNetUnfolder]: 2/32 cut-off events. [2021-06-11 07:37:16,932 INFO L130 PetriNetUnfolder]: For 282/282 co-relation queries the response was YES. [2021-06-11 07:37:16,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 32 events. 2/32 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 145 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 429. Up to 26 conditions per place. [2021-06-11 07:37:16,933 INFO L132 encePairwiseOnDemand]: 124/149 looper letters, 3 selfloop transitions, 25 changer transitions 0/32 dead transitions. [2021-06-11 07:37:16,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 32 transitions, 635 flow [2021-06-11 07:37:16,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:16,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2021-06-11 07:37:16,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7100671140939597 [2021-06-11 07:37:16,934 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2021-06-11 07:37:16,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2021-06-11 07:37:16,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:16,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2021-06-11 07:37:16,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,935 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,935 INFO L185 Difference]: Start difference. First operand has 101 places, 31 transitions, 531 flow. Second operand 5 states and 529 transitions. [2021-06-11 07:37:16,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 32 transitions, 635 flow [2021-06-11 07:37:16,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 32 transitions, 563 flow, removed 24 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:16,938 INFO L241 Difference]: Finished difference. Result has 105 places, 32 transitions, 563 flow [2021-06-11 07:37:16,938 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=563, PETRI_PLACES=105, PETRI_TRANSITIONS=32} [2021-06-11 07:37:16,938 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 94 predicate places. [2021-06-11 07:37:16,938 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:16,938 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 32 transitions, 563 flow [2021-06-11 07:37:16,938 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 32 transitions, 563 flow [2021-06-11 07:37:16,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 32 transitions, 563 flow [2021-06-11 07:37:16,941 INFO L129 PetriNetUnfolder]: 2/32 cut-off events. [2021-06-11 07:37:16,941 INFO L130 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2021-06-11 07:37:16,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 32 events. 2/32 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 156 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 405. Up to 25 conditions per place. [2021-06-11 07:37:16,942 INFO L151 LiptonReduction]: Number of co-enabled transitions 108 [2021-06-11 07:37:16,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:16,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:16,973 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:16,973 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:16,973 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-06-11 07:37:16,974 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 32 transitions, 565 flow [2021-06-11 07:37:16,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:16,974 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:16,974 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:17,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-06-11 07:37:17,189 INFO L428 AbstractCegarLoop]: === Iteration 26 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:17,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1339698600, now seen corresponding path program 1 times [2021-06-11 07:37:17,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:17,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019262737] [2021-06-11 07:37:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:17,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:17,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019262737] [2021-06-11 07:37:17,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189559889] [2021-06-11 07:37:17,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:17,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:17,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:17,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,265 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,272 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:17,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:17,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:17,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:17,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252824402] [2021-06-11 07:37:17,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:17,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:17,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:17,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:17,275 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 150 [2021-06-11 07:37:17,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 32 transitions, 565 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:17,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 150 [2021-06-11 07:37:17,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:17,314 INFO L129 PetriNetUnfolder]: 2/33 cut-off events. [2021-06-11 07:37:17,314 INFO L130 PetriNetUnfolder]: For 306/306 co-relation queries the response was YES. [2021-06-11 07:37:17,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 33 events. 2/33 cut-off events. For 306/306 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 153 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 459. Up to 27 conditions per place. [2021-06-11 07:37:17,315 INFO L132 encePairwiseOnDemand]: 124/150 looper letters, 3 selfloop transitions, 26 changer transitions 0/33 dead transitions. [2021-06-11 07:37:17,315 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 33 transitions, 673 flow [2021-06-11 07:37:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:17,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:17,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 530 transitions. [2021-06-11 07:37:17,316 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7066666666666667 [2021-06-11 07:37:17,316 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 530 transitions. [2021-06-11 07:37:17,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 530 transitions. [2021-06-11 07:37:17,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:17,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 530 transitions. [2021-06-11 07:37:17,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,317 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,318 INFO L185 Difference]: Start difference. First operand has 105 places, 32 transitions, 565 flow. Second operand 5 states and 530 transitions. [2021-06-11 07:37:17,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 33 transitions, 673 flow [2021-06-11 07:37:17,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 33 transitions, 598 flow, removed 25 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:17,321 INFO L241 Difference]: Finished difference. Result has 109 places, 33 transitions, 598 flow [2021-06-11 07:37:17,321 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=598, PETRI_PLACES=109, PETRI_TRANSITIONS=33} [2021-06-11 07:37:17,321 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 98 predicate places. [2021-06-11 07:37:17,321 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:17,321 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 33 transitions, 598 flow [2021-06-11 07:37:17,321 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 33 transitions, 598 flow [2021-06-11 07:37:17,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 33 transitions, 598 flow [2021-06-11 07:37:17,324 INFO L129 PetriNetUnfolder]: 2/33 cut-off events. [2021-06-11 07:37:17,324 INFO L130 PetriNetUnfolder]: For 300/300 co-relation queries the response was YES. [2021-06-11 07:37:17,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 33 events. 2/33 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 180 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 434. Up to 26 conditions per place. [2021-06-11 07:37:17,325 INFO L151 LiptonReduction]: Number of co-enabled transitions 112 [2021-06-11 07:37:17,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,353 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:17,353 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:17,353 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 07:37:17,353 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 33 transitions, 600 flow [2021-06-11 07:37:17,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,354 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:17,354 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:17,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:17,569 INFO L428 AbstractCegarLoop]: === Iteration 27 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:17,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:17,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1311069449, now seen corresponding path program 1 times [2021-06-11 07:37:17,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:17,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901208488] [2021-06-11 07:37:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:17,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:17,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901208488] [2021-06-11 07:37:17,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109083363] [2021-06-11 07:37:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:17,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:17,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:17,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,630 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:17,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:17,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:17,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:17,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084992008] [2021-06-11 07:37:17,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:17,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:17,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:17,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:17,633 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 151 [2021-06-11 07:37:17,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 33 transitions, 600 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:17,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 151 [2021-06-11 07:37:17,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:17,659 INFO L129 PetriNetUnfolder]: 2/34 cut-off events. [2021-06-11 07:37:17,660 INFO L130 PetriNetUnfolder]: For 331/331 co-relation queries the response was YES. [2021-06-11 07:37:17,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 34 events. 2/34 cut-off events. For 331/331 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 159 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 490. Up to 28 conditions per place. [2021-06-11 07:37:17,660 INFO L132 encePairwiseOnDemand]: 124/151 looper letters, 3 selfloop transitions, 27 changer transitions 0/34 dead transitions. [2021-06-11 07:37:17,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 34 transitions, 712 flow [2021-06-11 07:37:17,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:17,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:17,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 531 transitions. [2021-06-11 07:37:17,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7033112582781457 [2021-06-11 07:37:17,661 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 531 transitions. [2021-06-11 07:37:17,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 531 transitions. [2021-06-11 07:37:17,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:17,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 531 transitions. [2021-06-11 07:37:17,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,663 INFO L185 Difference]: Start difference. First operand has 109 places, 33 transitions, 600 flow. Second operand 5 states and 531 transitions. [2021-06-11 07:37:17,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 34 transitions, 712 flow [2021-06-11 07:37:17,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 34 transitions, 634 flow, removed 26 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:17,666 INFO L241 Difference]: Finished difference. Result has 113 places, 34 transitions, 634 flow [2021-06-11 07:37:17,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=634, PETRI_PLACES=113, PETRI_TRANSITIONS=34} [2021-06-11 07:37:17,666 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 102 predicate places. [2021-06-11 07:37:17,666 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:17,666 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 34 transitions, 634 flow [2021-06-11 07:37:17,666 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 34 transitions, 634 flow [2021-06-11 07:37:17,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 34 transitions, 634 flow [2021-06-11 07:37:17,669 INFO L129 PetriNetUnfolder]: 2/34 cut-off events. [2021-06-11 07:37:17,669 INFO L130 PetriNetUnfolder]: For 325/325 co-relation queries the response was YES. [2021-06-11 07:37:17,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 34 events. 2/34 cut-off events. For 325/325 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 185 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 464. Up to 27 conditions per place. [2021-06-11 07:37:17,670 INFO L151 LiptonReduction]: Number of co-enabled transitions 116 [2021-06-11 07:37:17,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,697 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:17,697 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:17,697 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 07:37:17,697 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 34 transitions, 636 flow [2021-06-11 07:37:17,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,697 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:17,697 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:17,912 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-06-11 07:37:17,912 INFO L428 AbstractCegarLoop]: === Iteration 28 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:17,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1282440298, now seen corresponding path program 1 times [2021-06-11 07:37:17,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:17,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767590899] [2021-06-11 07:37:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:17,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:17,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767590899] [2021-06-11 07:37:17,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360428615] [2021-06-11 07:37:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:17,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:17,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:17,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:17,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:17,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:17,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:17,978 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:17,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:17,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:17,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956209462] [2021-06-11 07:37:17,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:17,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:17,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:17,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:17,981 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 152 [2021-06-11 07:37:17,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 34 transitions, 636 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:17,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:17,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 152 [2021-06-11 07:37:17,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:18,009 INFO L129 PetriNetUnfolder]: 2/35 cut-off events. [2021-06-11 07:37:18,009 INFO L130 PetriNetUnfolder]: For 357/357 co-relation queries the response was YES. [2021-06-11 07:37:18,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 35 events. 2/35 cut-off events. For 357/357 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 167 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 522. Up to 29 conditions per place. [2021-06-11 07:37:18,009 INFO L132 encePairwiseOnDemand]: 124/152 looper letters, 3 selfloop transitions, 28 changer transitions 0/35 dead transitions. [2021-06-11 07:37:18,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 35 transitions, 752 flow [2021-06-11 07:37:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:18,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:18,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-06-11 07:37:18,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7 [2021-06-11 07:37:18,010 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-06-11 07:37:18,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-06-11 07:37:18,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:18,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-06-11 07:37:18,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,012 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,012 INFO L185 Difference]: Start difference. First operand has 113 places, 34 transitions, 636 flow. Second operand 5 states and 532 transitions. [2021-06-11 07:37:18,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 35 transitions, 752 flow [2021-06-11 07:37:18,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 35 transitions, 671 flow, removed 27 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:18,016 INFO L241 Difference]: Finished difference. Result has 117 places, 35 transitions, 671 flow [2021-06-11 07:37:18,016 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=671, PETRI_PLACES=117, PETRI_TRANSITIONS=35} [2021-06-11 07:37:18,016 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 106 predicate places. [2021-06-11 07:37:18,016 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:18,016 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 35 transitions, 671 flow [2021-06-11 07:37:18,017 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 35 transitions, 671 flow [2021-06-11 07:37:18,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 35 transitions, 671 flow [2021-06-11 07:37:18,020 INFO L129 PetriNetUnfolder]: 2/35 cut-off events. [2021-06-11 07:37:18,020 INFO L130 PetriNetUnfolder]: For 351/351 co-relation queries the response was YES. [2021-06-11 07:37:18,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 35 events. 2/35 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 200 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 495. Up to 28 conditions per place. [2021-06-11 07:37:18,020 INFO L151 LiptonReduction]: Number of co-enabled transitions 120 [2021-06-11 07:37:18,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,049 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:18,049 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:18,049 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-06-11 07:37:18,049 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 35 transitions, 673 flow [2021-06-11 07:37:18,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,050 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:18,050 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:18,264 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-11 07:37:18,265 INFO L428 AbstractCegarLoop]: === Iteration 29 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:18,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:18,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1253811147, now seen corresponding path program 1 times [2021-06-11 07:37:18,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:18,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726238564] [2021-06-11 07:37:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:18,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:18,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726238564] [2021-06-11 07:37:18,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123438663] [2021-06-11 07:37:18,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:18,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:18,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,338 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,340 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:18,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:18,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:18,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:18,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877691034] [2021-06-11 07:37:18,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:18,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:18,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:18,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:18,344 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 153 [2021-06-11 07:37:18,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 35 transitions, 673 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:18,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 153 [2021-06-11 07:37:18,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:18,373 INFO L129 PetriNetUnfolder]: 2/36 cut-off events. [2021-06-11 07:37:18,373 INFO L130 PetriNetUnfolder]: For 384/384 co-relation queries the response was YES. [2021-06-11 07:37:18,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 36 events. 2/36 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 178 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 555. Up to 30 conditions per place. [2021-06-11 07:37:18,374 INFO L132 encePairwiseOnDemand]: 124/153 looper letters, 3 selfloop transitions, 29 changer transitions 0/36 dead transitions. [2021-06-11 07:37:18,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 36 transitions, 793 flow [2021-06-11 07:37:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 533 transitions. [2021-06-11 07:37:18,375 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6967320261437908 [2021-06-11 07:37:18,375 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 533 transitions. [2021-06-11 07:37:18,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 533 transitions. [2021-06-11 07:37:18,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:18,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 533 transitions. [2021-06-11 07:37:18,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.6) internal successors, (533), 5 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,376 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 153.0) internal successors, (918), 6 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,376 INFO L185 Difference]: Start difference. First operand has 117 places, 35 transitions, 673 flow. Second operand 5 states and 533 transitions. [2021-06-11 07:37:18,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 36 transitions, 793 flow [2021-06-11 07:37:18,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 36 transitions, 709 flow, removed 28 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:18,380 INFO L241 Difference]: Finished difference. Result has 121 places, 36 transitions, 709 flow [2021-06-11 07:37:18,380 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=709, PETRI_PLACES=121, PETRI_TRANSITIONS=36} [2021-06-11 07:37:18,381 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 110 predicate places. [2021-06-11 07:37:18,382 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:18,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 36 transitions, 709 flow [2021-06-11 07:37:18,382 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 36 transitions, 709 flow [2021-06-11 07:37:18,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 36 transitions, 709 flow [2021-06-11 07:37:18,385 INFO L129 PetriNetUnfolder]: 2/36 cut-off events. [2021-06-11 07:37:18,385 INFO L130 PetriNetUnfolder]: For 378/378 co-relation queries the response was YES. [2021-06-11 07:37:18,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 36 events. 2/36 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 202 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 527. Up to 29 conditions per place. [2021-06-11 07:37:18,386 INFO L151 LiptonReduction]: Number of co-enabled transitions 124 [2021-06-11 07:37:18,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,414 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:18,414 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:18,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-06-11 07:37:18,416 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 36 transitions, 711 flow [2021-06-11 07:37:18,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,416 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:18,416 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:18,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-06-11 07:37:18,631 INFO L428 AbstractCegarLoop]: === Iteration 30 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:18,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:18,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1225181996, now seen corresponding path program 1 times [2021-06-11 07:37:18,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:18,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763510430] [2021-06-11 07:37:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:18,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:18,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763510430] [2021-06-11 07:37:18,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396088627] [2021-06-11 07:37:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:18,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:18,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:18,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:18,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:18,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:18,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,707 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:18,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:18,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:18,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:18,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:18,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251639231] [2021-06-11 07:37:18,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:18,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:18,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:18,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:18,712 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 154 [2021-06-11 07:37:18,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 36 transitions, 711 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:18,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 154 [2021-06-11 07:37:18,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:18,740 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2021-06-11 07:37:18,740 INFO L130 PetriNetUnfolder]: For 412/412 co-relation queries the response was YES. [2021-06-11 07:37:18,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 37 events. 2/37 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 190 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 589. Up to 31 conditions per place. [2021-06-11 07:37:18,741 INFO L132 encePairwiseOnDemand]: 124/154 looper letters, 3 selfloop transitions, 30 changer transitions 0/37 dead transitions. [2021-06-11 07:37:18,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 37 transitions, 835 flow [2021-06-11 07:37:18,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 534 transitions. [2021-06-11 07:37:18,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6935064935064935 [2021-06-11 07:37:18,742 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 534 transitions. [2021-06-11 07:37:18,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 534 transitions. [2021-06-11 07:37:18,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:18,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 534 transitions. [2021-06-11 07:37:18,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,743 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,743 INFO L185 Difference]: Start difference. First operand has 121 places, 36 transitions, 711 flow. Second operand 5 states and 534 transitions. [2021-06-11 07:37:18,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 37 transitions, 835 flow [2021-06-11 07:37:18,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 37 transitions, 748 flow, removed 29 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:18,746 INFO L241 Difference]: Finished difference. Result has 125 places, 37 transitions, 748 flow [2021-06-11 07:37:18,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=748, PETRI_PLACES=125, PETRI_TRANSITIONS=37} [2021-06-11 07:37:18,747 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 114 predicate places. [2021-06-11 07:37:18,747 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:18,747 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 37 transitions, 748 flow [2021-06-11 07:37:18,747 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 37 transitions, 748 flow [2021-06-11 07:37:18,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 37 transitions, 748 flow [2021-06-11 07:37:18,750 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2021-06-11 07:37:18,750 INFO L130 PetriNetUnfolder]: For 406/406 co-relation queries the response was YES. [2021-06-11 07:37:18,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 37 events. 2/37 cut-off events. For 406/406 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 215 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 560. Up to 30 conditions per place. [2021-06-11 07:37:18,751 INFO L151 LiptonReduction]: Number of co-enabled transitions 128 [2021-06-11 07:37:18,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:18,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:18,780 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:18,780 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:18,780 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-06-11 07:37:18,781 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 37 transitions, 750 flow [2021-06-11 07:37:18,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:18,781 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:18,781 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:18,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:18,996 INFO L428 AbstractCegarLoop]: === Iteration 31 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:18,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:18,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1729766931, now seen corresponding path program 1 times [2021-06-11 07:37:18,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:18,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724247864] [2021-06-11 07:37:18,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:19,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724247864] [2021-06-11 07:37:19,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450245570] [2021-06-11 07:37:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:19,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:19,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:19,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,061 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,063 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:19,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:19,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:19,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:19,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959423021] [2021-06-11 07:37:19,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:19,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:19,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:19,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:19,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 155 [2021-06-11 07:37:19,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 37 transitions, 750 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:19,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 155 [2021-06-11 07:37:19,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:19,108 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2021-06-11 07:37:19,109 INFO L130 PetriNetUnfolder]: For 441/441 co-relation queries the response was YES. [2021-06-11 07:37:19,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 38 events. 2/38 cut-off events. For 441/441 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 191 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 624. Up to 32 conditions per place. [2021-06-11 07:37:19,109 INFO L132 encePairwiseOnDemand]: 124/155 looper letters, 3 selfloop transitions, 31 changer transitions 0/38 dead transitions. [2021-06-11 07:37:19,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 38 transitions, 878 flow [2021-06-11 07:37:19,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:19,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 535 transitions. [2021-06-11 07:37:19,110 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6903225806451613 [2021-06-11 07:37:19,110 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 535 transitions. [2021-06-11 07:37:19,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 535 transitions. [2021-06-11 07:37:19,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:19,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 535 transitions. [2021-06-11 07:37:19,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,112 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,112 INFO L185 Difference]: Start difference. First operand has 125 places, 37 transitions, 750 flow. Second operand 5 states and 535 transitions. [2021-06-11 07:37:19,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 38 transitions, 878 flow [2021-06-11 07:37:19,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 38 transitions, 788 flow, removed 30 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:19,115 INFO L241 Difference]: Finished difference. Result has 129 places, 38 transitions, 788 flow [2021-06-11 07:37:19,115 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=788, PETRI_PLACES=129, PETRI_TRANSITIONS=38} [2021-06-11 07:37:19,115 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 118 predicate places. [2021-06-11 07:37:19,115 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:19,115 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 38 transitions, 788 flow [2021-06-11 07:37:19,116 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 38 transitions, 788 flow [2021-06-11 07:37:19,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 38 transitions, 788 flow [2021-06-11 07:37:19,142 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2021-06-11 07:37:19,142 INFO L130 PetriNetUnfolder]: For 435/435 co-relation queries the response was YES. [2021-06-11 07:37:19,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 38 events. 2/38 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 222 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 594. Up to 31 conditions per place. [2021-06-11 07:37:19,143 INFO L151 LiptonReduction]: Number of co-enabled transitions 132 [2021-06-11 07:37:19,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,172 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:19,172 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:19,172 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-06-11 07:37:19,172 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 38 transitions, 790 flow [2021-06-11 07:37:19,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,173 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:19,173 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:19,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-06-11 07:37:19,385 INFO L428 AbstractCegarLoop]: === Iteration 32 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:19,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:19,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1167923694, now seen corresponding path program 1 times [2021-06-11 07:37:19,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:19,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953609290] [2021-06-11 07:37:19,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:19,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:19,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953609290] [2021-06-11 07:37:19,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131402763] [2021-06-11 07:37:19,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:19,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:19,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:19,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,452 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:19,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:19,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:19,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:19,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831306107] [2021-06-11 07:37:19,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:19,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:19,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:19,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:19,455 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 156 [2021-06-11 07:37:19,455 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 38 transitions, 790 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:19,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 156 [2021-06-11 07:37:19,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:19,484 INFO L129 PetriNetUnfolder]: 2/39 cut-off events. [2021-06-11 07:37:19,484 INFO L130 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2021-06-11 07:37:19,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 39 events. 2/39 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 201 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 660. Up to 33 conditions per place. [2021-06-11 07:37:19,484 INFO L132 encePairwiseOnDemand]: 124/156 looper letters, 3 selfloop transitions, 32 changer transitions 0/39 dead transitions. [2021-06-11 07:37:19,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 39 transitions, 922 flow [2021-06-11 07:37:19,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:19,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 536 transitions. [2021-06-11 07:37:19,485 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6871794871794872 [2021-06-11 07:37:19,486 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 536 transitions. [2021-06-11 07:37:19,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 536 transitions. [2021-06-11 07:37:19,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:19,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 536 transitions. [2021-06-11 07:37:19,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,487 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,487 INFO L185 Difference]: Start difference. First operand has 129 places, 38 transitions, 790 flow. Second operand 5 states and 536 transitions. [2021-06-11 07:37:19,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 39 transitions, 922 flow [2021-06-11 07:37:19,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 39 transitions, 829 flow, removed 31 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:19,492 INFO L241 Difference]: Finished difference. Result has 133 places, 39 transitions, 829 flow [2021-06-11 07:37:19,492 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=829, PETRI_PLACES=133, PETRI_TRANSITIONS=39} [2021-06-11 07:37:19,492 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 122 predicate places. [2021-06-11 07:37:19,492 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:19,492 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 39 transitions, 829 flow [2021-06-11 07:37:19,492 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 39 transitions, 829 flow [2021-06-11 07:37:19,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 39 transitions, 829 flow [2021-06-11 07:37:19,495 INFO L129 PetriNetUnfolder]: 2/39 cut-off events. [2021-06-11 07:37:19,495 INFO L130 PetriNetUnfolder]: For 465/465 co-relation queries the response was YES. [2021-06-11 07:37:19,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 39 events. 2/39 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 228 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 629. Up to 32 conditions per place. [2021-06-11 07:37:19,496 INFO L151 LiptonReduction]: Number of co-enabled transitions 136 [2021-06-11 07:37:19,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,523 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:19,523 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:19,523 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 07:37:19,524 INFO L480 AbstractCegarLoop]: Abstraction has has 133 places, 39 transitions, 831 flow [2021-06-11 07:37:19,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,525 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:19,525 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:19,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:19,737 INFO L428 AbstractCegarLoop]: === Iteration 33 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:19,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:19,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1731613973, now seen corresponding path program 1 times [2021-06-11 07:37:19,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:19,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539560544] [2021-06-11 07:37:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:19,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:19,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539560544] [2021-06-11 07:37:19,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615360449] [2021-06-11 07:37:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:19,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:19,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:19,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:19,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:19,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:19,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,804 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:19,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:19,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:19,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:19,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:19,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581155706] [2021-06-11 07:37:19,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:19,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:19,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:19,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:19,807 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 157 [2021-06-11 07:37:19,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 39 transitions, 831 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:19,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 157 [2021-06-11 07:37:19,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:19,838 INFO L129 PetriNetUnfolder]: 2/40 cut-off events. [2021-06-11 07:37:19,838 INFO L130 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2021-06-11 07:37:19,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 40 events. 2/40 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 212 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 697. Up to 34 conditions per place. [2021-06-11 07:37:19,839 INFO L132 encePairwiseOnDemand]: 124/157 looper letters, 3 selfloop transitions, 33 changer transitions 0/40 dead transitions. [2021-06-11 07:37:19,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 40 transitions, 967 flow [2021-06-11 07:37:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:19,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:19,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 537 transitions. [2021-06-11 07:37:19,840 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6840764331210191 [2021-06-11 07:37:19,840 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 537 transitions. [2021-06-11 07:37:19,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 537 transitions. [2021-06-11 07:37:19,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:19,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 537 transitions. [2021-06-11 07:37:19,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,842 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,842 INFO L185 Difference]: Start difference. First operand has 133 places, 39 transitions, 831 flow. Second operand 5 states and 537 transitions. [2021-06-11 07:37:19,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 40 transitions, 967 flow [2021-06-11 07:37:19,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 40 transitions, 871 flow, removed 32 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:19,846 INFO L241 Difference]: Finished difference. Result has 137 places, 40 transitions, 871 flow [2021-06-11 07:37:19,846 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=871, PETRI_PLACES=137, PETRI_TRANSITIONS=40} [2021-06-11 07:37:19,846 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 126 predicate places. [2021-06-11 07:37:19,846 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:19,847 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 40 transitions, 871 flow [2021-06-11 07:37:19,847 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 40 transitions, 871 flow [2021-06-11 07:37:19,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 40 transitions, 871 flow [2021-06-11 07:37:19,850 INFO L129 PetriNetUnfolder]: 2/40 cut-off events. [2021-06-11 07:37:19,850 INFO L130 PetriNetUnfolder]: For 496/496 co-relation queries the response was YES. [2021-06-11 07:37:19,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 40 events. 2/40 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 241 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 665. Up to 33 conditions per place. [2021-06-11 07:37:19,851 INFO L151 LiptonReduction]: Number of co-enabled transitions 140 [2021-06-11 07:37:19,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:19,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:19,881 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:19,881 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:19,881 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-06-11 07:37:19,882 INFO L480 AbstractCegarLoop]: Abstraction has has 137 places, 40 transitions, 873 flow [2021-06-11 07:37:19,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:19,882 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:19,882 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:20,097 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-06-11 07:37:20,097 INFO L428 AbstractCegarLoop]: === Iteration 34 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:20,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:20,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1110665392, now seen corresponding path program 1 times [2021-06-11 07:37:20,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:20,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330893007] [2021-06-11 07:37:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:20,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:20,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330893007] [2021-06-11 07:37:20,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139515022] [2021-06-11 07:37:20,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:20,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:20,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:20,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,170 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,179 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:20,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:20,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:20,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:20,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352508201] [2021-06-11 07:37:20,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:20,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:20,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:20,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:20,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 158 [2021-06-11 07:37:20,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 40 transitions, 873 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:20,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 158 [2021-06-11 07:37:20,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:20,214 INFO L129 PetriNetUnfolder]: 2/41 cut-off events. [2021-06-11 07:37:20,214 INFO L130 PetriNetUnfolder]: For 534/534 co-relation queries the response was YES. [2021-06-11 07:37:20,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 41 events. 2/41 cut-off events. For 534/534 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 227 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 735. Up to 35 conditions per place. [2021-06-11 07:37:20,215 INFO L132 encePairwiseOnDemand]: 124/158 looper letters, 3 selfloop transitions, 34 changer transitions 0/41 dead transitions. [2021-06-11 07:37:20,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 41 transitions, 1013 flow [2021-06-11 07:37:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:20,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2021-06-11 07:37:20,216 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6810126582278481 [2021-06-11 07:37:20,216 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2021-06-11 07:37:20,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2021-06-11 07:37:20,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:20,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2021-06-11 07:37:20,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,217 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,217 INFO L185 Difference]: Start difference. First operand has 137 places, 40 transitions, 873 flow. Second operand 5 states and 538 transitions. [2021-06-11 07:37:20,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 41 transitions, 1013 flow [2021-06-11 07:37:20,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 41 transitions, 914 flow, removed 33 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:20,221 INFO L241 Difference]: Finished difference. Result has 141 places, 41 transitions, 914 flow [2021-06-11 07:37:20,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=914, PETRI_PLACES=141, PETRI_TRANSITIONS=41} [2021-06-11 07:37:20,222 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 130 predicate places. [2021-06-11 07:37:20,222 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:20,222 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 41 transitions, 914 flow [2021-06-11 07:37:20,222 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 41 transitions, 914 flow [2021-06-11 07:37:20,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 41 transitions, 914 flow [2021-06-11 07:37:20,225 INFO L129 PetriNetUnfolder]: 2/41 cut-off events. [2021-06-11 07:37:20,225 INFO L130 PetriNetUnfolder]: For 528/528 co-relation queries the response was YES. [2021-06-11 07:37:20,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 41 events. 2/41 cut-off events. For 528/528 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 255 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 702. Up to 34 conditions per place. [2021-06-11 07:37:20,226 INFO L151 LiptonReduction]: Number of co-enabled transitions 144 [2021-06-11 07:37:20,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,255 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:20,255 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:20,255 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-06-11 07:37:20,255 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 41 transitions, 916 flow [2021-06-11 07:37:20,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,256 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:20,256 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:20,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-06-11 07:37:20,471 INFO L428 AbstractCegarLoop]: === Iteration 35 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:20,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:20,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1733461015, now seen corresponding path program 1 times [2021-06-11 07:37:20,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:20,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649352758] [2021-06-11 07:37:20,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:20,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:20,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649352758] [2021-06-11 07:37:20,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050051038] [2021-06-11 07:37:20,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:20,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:20,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:20,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,549 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:20,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:20,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:20,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:20,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638795685] [2021-06-11 07:37:20,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:20,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:20,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:20,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:20,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 159 [2021-06-11 07:37:20,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 41 transitions, 916 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:20,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 159 [2021-06-11 07:37:20,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:20,584 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-06-11 07:37:20,584 INFO L130 PetriNetUnfolder]: For 567/567 co-relation queries the response was YES. [2021-06-11 07:37:20,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 42 events. 2/42 cut-off events. For 567/567 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 236 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 774. Up to 36 conditions per place. [2021-06-11 07:37:20,585 INFO L132 encePairwiseOnDemand]: 124/159 looper letters, 3 selfloop transitions, 35 changer transitions 0/42 dead transitions. [2021-06-11 07:37:20,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 42 transitions, 1060 flow [2021-06-11 07:37:20,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:20,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:20,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 539 transitions. [2021-06-11 07:37:20,585 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6779874213836478 [2021-06-11 07:37:20,585 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 539 transitions. [2021-06-11 07:37:20,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 539 transitions. [2021-06-11 07:37:20,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:20,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 539 transitions. [2021-06-11 07:37:20,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.8) internal successors, (539), 5 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,587 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,587 INFO L185 Difference]: Start difference. First operand has 141 places, 41 transitions, 916 flow. Second operand 5 states and 539 transitions. [2021-06-11 07:37:20,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 42 transitions, 1060 flow [2021-06-11 07:37:20,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 42 transitions, 958 flow, removed 34 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:20,591 INFO L241 Difference]: Finished difference. Result has 145 places, 42 transitions, 958 flow [2021-06-11 07:37:20,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=958, PETRI_PLACES=145, PETRI_TRANSITIONS=42} [2021-06-11 07:37:20,591 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 134 predicate places. [2021-06-11 07:37:20,591 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:20,591 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 42 transitions, 958 flow [2021-06-11 07:37:20,591 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 42 transitions, 958 flow [2021-06-11 07:37:20,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 42 transitions, 958 flow [2021-06-11 07:37:20,595 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-06-11 07:37:20,595 INFO L130 PetriNetUnfolder]: For 561/561 co-relation queries the response was YES. [2021-06-11 07:37:20,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 42 events. 2/42 cut-off events. For 561/561 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 258 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 740. Up to 35 conditions per place. [2021-06-11 07:37:20,596 INFO L151 LiptonReduction]: Number of co-enabled transitions 148 [2021-06-11 07:37:20,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,625 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:20,625 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:20,625 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-06-11 07:37:20,625 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 42 transitions, 960 flow [2021-06-11 07:37:20,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:20,625 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:20,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-06-11 07:37:20,837 INFO L428 AbstractCegarLoop]: === Iteration 36 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:20,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:20,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1053407090, now seen corresponding path program 1 times [2021-06-11 07:37:20,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:20,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268974967] [2021-06-11 07:37:20,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:20,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:20,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268974967] [2021-06-11 07:37:20,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942773840] [2021-06-11 07:37:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:20,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:20,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:20,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:20,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:20,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:20,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,898 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:20,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:20,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:20,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:20,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:20,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109879456] [2021-06-11 07:37:20,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:20,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:20,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:20,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:20,902 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 160 [2021-06-11 07:37:20,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 42 transitions, 960 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:20,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 160 [2021-06-11 07:37:20,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:20,932 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-06-11 07:37:20,932 INFO L130 PetriNetUnfolder]: For 601/601 co-relation queries the response was YES. [2021-06-11 07:37:20,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 43 events. 2/43 cut-off events. For 601/601 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 239 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 814. Up to 37 conditions per place. [2021-06-11 07:37:20,933 INFO L132 encePairwiseOnDemand]: 124/160 looper letters, 3 selfloop transitions, 36 changer transitions 0/43 dead transitions. [2021-06-11 07:37:20,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 43 transitions, 1108 flow [2021-06-11 07:37:20,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:20,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 540 transitions. [2021-06-11 07:37:20,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.675 [2021-06-11 07:37:20,934 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 540 transitions. [2021-06-11 07:37:20,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 540 transitions. [2021-06-11 07:37:20,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:20,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 540 transitions. [2021-06-11 07:37:20,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,935 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,935 INFO L185 Difference]: Start difference. First operand has 145 places, 42 transitions, 960 flow. Second operand 5 states and 540 transitions. [2021-06-11 07:37:20,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 43 transitions, 1108 flow [2021-06-11 07:37:20,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 43 transitions, 1003 flow, removed 35 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:20,940 INFO L241 Difference]: Finished difference. Result has 149 places, 43 transitions, 1003 flow [2021-06-11 07:37:20,940 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1003, PETRI_PLACES=149, PETRI_TRANSITIONS=43} [2021-06-11 07:37:20,940 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 138 predicate places. [2021-06-11 07:37:20,940 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:20,940 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 43 transitions, 1003 flow [2021-06-11 07:37:20,940 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 43 transitions, 1003 flow [2021-06-11 07:37:20,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 43 transitions, 1003 flow [2021-06-11 07:37:20,944 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-06-11 07:37:20,944 INFO L130 PetriNetUnfolder]: For 595/595 co-relation queries the response was YES. [2021-06-11 07:37:20,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 43 events. 2/43 cut-off events. For 595/595 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 271 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 779. Up to 36 conditions per place. [2021-06-11 07:37:20,945 INFO L151 LiptonReduction]: Number of co-enabled transitions 152 [2021-06-11 07:37:20,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:20,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:20,973 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:20,973 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:20,973 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-06-11 07:37:20,973 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 43 transitions, 1005 flow [2021-06-11 07:37:20,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:20,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:20,975 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:21,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-06-11 07:37:21,190 INFO L428 AbstractCegarLoop]: === Iteration 37 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:21,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:21,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1024777939, now seen corresponding path program 1 times [2021-06-11 07:37:21,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:21,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315579943] [2021-06-11 07:37:21,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:21,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:21,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315579943] [2021-06-11 07:37:21,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242488403] [2021-06-11 07:37:21,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:21,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:21,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:21,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:21,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:21,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:21,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:21,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:21,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:21,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:21,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:21,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:21,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:21,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:21,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:21,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,279 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:21,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:21,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:21,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:21,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964094556] [2021-06-11 07:37:21,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:21,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:21,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:21,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:21,282 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 161 [2021-06-11 07:37:21,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 43 transitions, 1005 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:21,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 161 [2021-06-11 07:37:21,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:21,319 INFO L129 PetriNetUnfolder]: 2/44 cut-off events. [2021-06-11 07:37:21,319 INFO L130 PetriNetUnfolder]: For 636/636 co-relation queries the response was YES. [2021-06-11 07:37:21,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 44 events. 2/44 cut-off events. For 636/636 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 249 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 855. Up to 38 conditions per place. [2021-06-11 07:37:21,320 INFO L132 encePairwiseOnDemand]: 124/161 looper letters, 3 selfloop transitions, 37 changer transitions 0/44 dead transitions. [2021-06-11 07:37:21,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 44 transitions, 1157 flow [2021-06-11 07:37:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:21,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 541 transitions. [2021-06-11 07:37:21,321 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6720496894409937 [2021-06-11 07:37:21,321 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 541 transitions. [2021-06-11 07:37:21,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 541 transitions. [2021-06-11 07:37:21,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:21,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 541 transitions. [2021-06-11 07:37:21,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,322 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,322 INFO L185 Difference]: Start difference. First operand has 149 places, 43 transitions, 1005 flow. Second operand 5 states and 541 transitions. [2021-06-11 07:37:21,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 44 transitions, 1157 flow [2021-06-11 07:37:21,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 44 transitions, 1049 flow, removed 36 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:21,327 INFO L241 Difference]: Finished difference. Result has 153 places, 44 transitions, 1049 flow [2021-06-11 07:37:21,327 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1049, PETRI_PLACES=153, PETRI_TRANSITIONS=44} [2021-06-11 07:37:21,327 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 142 predicate places. [2021-06-11 07:37:21,327 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:21,327 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 44 transitions, 1049 flow [2021-06-11 07:37:21,327 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 44 transitions, 1049 flow [2021-06-11 07:37:21,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 153 places, 44 transitions, 1049 flow [2021-06-11 07:37:21,336 INFO L129 PetriNetUnfolder]: 2/44 cut-off events. [2021-06-11 07:37:21,336 INFO L130 PetriNetUnfolder]: For 630/630 co-relation queries the response was YES. [2021-06-11 07:37:21,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 44 events. 2/44 cut-off events. For 630/630 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 269 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 819. Up to 37 conditions per place. [2021-06-11 07:37:21,337 INFO L151 LiptonReduction]: Number of co-enabled transitions 156 [2021-06-11 07:37:21,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,370 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:21,370 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:21,371 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-06-11 07:37:21,371 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 44 transitions, 1051 flow [2021-06-11 07:37:21,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,371 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:21,371 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:21,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-06-11 07:37:21,581 INFO L428 AbstractCegarLoop]: === Iteration 38 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:21,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:21,581 INFO L82 PathProgramCache]: Analyzing trace with hash -996148788, now seen corresponding path program 1 times [2021-06-11 07:37:21,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:21,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109464113] [2021-06-11 07:37:21,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:21,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:21,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109464113] [2021-06-11 07:37:21,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972550181] [2021-06-11 07:37:21,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:21,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:21,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:21,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:21,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:21,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:21,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:21,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:21,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:21,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:21,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:21,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:21,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:21,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:21,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:21,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,645 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:21,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:21,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:21,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:21,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686149769] [2021-06-11 07:37:21,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:21,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:21,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:21,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:21,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 162 [2021-06-11 07:37:21,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 44 transitions, 1051 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:21,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 162 [2021-06-11 07:37:21,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:21,686 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-06-11 07:37:21,686 INFO L130 PetriNetUnfolder]: For 672/672 co-relation queries the response was YES. [2021-06-11 07:37:21,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 45 events. 2/45 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 260 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 897. Up to 39 conditions per place. [2021-06-11 07:37:21,688 INFO L132 encePairwiseOnDemand]: 124/162 looper letters, 3 selfloop transitions, 38 changer transitions 0/45 dead transitions. [2021-06-11 07:37:21,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 45 transitions, 1207 flow [2021-06-11 07:37:21,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-06-11 07:37:21,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6691358024691358 [2021-06-11 07:37:21,689 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-06-11 07:37:21,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-06-11 07:37:21,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:21,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-06-11 07:37:21,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,690 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,690 INFO L185 Difference]: Start difference. First operand has 153 places, 44 transitions, 1051 flow. Second operand 5 states and 542 transitions. [2021-06-11 07:37:21,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 45 transitions, 1207 flow [2021-06-11 07:37:21,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 45 transitions, 1096 flow, removed 37 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:21,695 INFO L241 Difference]: Finished difference. Result has 157 places, 45 transitions, 1096 flow [2021-06-11 07:37:21,695 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1096, PETRI_PLACES=157, PETRI_TRANSITIONS=45} [2021-06-11 07:37:21,695 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 146 predicate places. [2021-06-11 07:37:21,695 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:21,695 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 45 transitions, 1096 flow [2021-06-11 07:37:21,695 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 45 transitions, 1096 flow [2021-06-11 07:37:21,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 157 places, 45 transitions, 1096 flow [2021-06-11 07:37:21,699 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-06-11 07:37:21,699 INFO L130 PetriNetUnfolder]: For 666/666 co-relation queries the response was YES. [2021-06-11 07:37:21,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 904 conditions, 45 events. 2/45 cut-off events. For 666/666 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 289 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 860. Up to 38 conditions per place. [2021-06-11 07:37:21,700 INFO L151 LiptonReduction]: Number of co-enabled transitions 160 [2021-06-11 07:37:21,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,729 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:21,729 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:21,730 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-06-11 07:37:21,730 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 45 transitions, 1098 flow [2021-06-11 07:37:21,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:21,730 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:21,730 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:21,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-06-11 07:37:21,945 INFO L428 AbstractCegarLoop]: === Iteration 39 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:21,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:21,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1737155099, now seen corresponding path program 1 times [2021-06-11 07:37:21,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:21,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423386097] [2021-06-11 07:37:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:21,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:21,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:21,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423386097] [2021-06-11 07:37:21,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595229492] [2021-06-11 07:37:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:21,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:21,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:21,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:21,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:21,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,016 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:22,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:22,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:22,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:22,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014322535] [2021-06-11 07:37:22,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:22,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:22,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:22,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:22,019 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 163 [2021-06-11 07:37:22,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 45 transitions, 1098 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:22,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 163 [2021-06-11 07:37:22,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:22,055 INFO L129 PetriNetUnfolder]: 2/46 cut-off events. [2021-06-11 07:37:22,055 INFO L130 PetriNetUnfolder]: For 709/709 co-relation queries the response was YES. [2021-06-11 07:37:22,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 46 events. 2/46 cut-off events. For 709/709 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 265 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 940. Up to 40 conditions per place. [2021-06-11 07:37:22,056 INFO L132 encePairwiseOnDemand]: 124/163 looper letters, 3 selfloop transitions, 39 changer transitions 0/46 dead transitions. [2021-06-11 07:37:22,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 46 transitions, 1258 flow [2021-06-11 07:37:22,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:22,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 543 transitions. [2021-06-11 07:37:22,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6662576687116565 [2021-06-11 07:37:22,057 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 543 transitions. [2021-06-11 07:37:22,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 543 transitions. [2021-06-11 07:37:22,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:22,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 543 transitions. [2021-06-11 07:37:22,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.6) internal successors, (543), 5 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,058 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,058 INFO L185 Difference]: Start difference. First operand has 157 places, 45 transitions, 1098 flow. Second operand 5 states and 543 transitions. [2021-06-11 07:37:22,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 46 transitions, 1258 flow [2021-06-11 07:37:22,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 46 transitions, 1144 flow, removed 38 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:22,063 INFO L241 Difference]: Finished difference. Result has 161 places, 46 transitions, 1144 flow [2021-06-11 07:37:22,063 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1144, PETRI_PLACES=161, PETRI_TRANSITIONS=46} [2021-06-11 07:37:22,064 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 150 predicate places. [2021-06-11 07:37:22,064 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:22,064 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 46 transitions, 1144 flow [2021-06-11 07:37:22,064 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 46 transitions, 1144 flow [2021-06-11 07:37:22,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 46 transitions, 1144 flow [2021-06-11 07:37:22,068 INFO L129 PetriNetUnfolder]: 2/46 cut-off events. [2021-06-11 07:37:22,068 INFO L130 PetriNetUnfolder]: For 703/703 co-relation queries the response was YES. [2021-06-11 07:37:22,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 46 events. 2/46 cut-off events. For 703/703 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 309 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 902. Up to 39 conditions per place. [2021-06-11 07:37:22,069 INFO L151 LiptonReduction]: Number of co-enabled transitions 164 [2021-06-11 07:37:22,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,097 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:22,097 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:22,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-06-11 07:37:22,097 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 46 transitions, 1146 flow [2021-06-11 07:37:22,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,097 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:22,097 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:22,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-06-11 07:37:22,312 INFO L428 AbstractCegarLoop]: === Iteration 40 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:22,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:22,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1738078620, now seen corresponding path program 1 times [2021-06-11 07:37:22,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:22,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470442318] [2021-06-11 07:37:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:22,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:22,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470442318] [2021-06-11 07:37:22,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463240163] [2021-06-11 07:37:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:22,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-11 07:37:22,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:22,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,376 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,377 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,379 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:22,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:22,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:22,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:22,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439896388] [2021-06-11 07:37:22,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:22,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:22,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:22,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:22,381 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 164 [2021-06-11 07:37:22,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 46 transitions, 1146 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:22,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 164 [2021-06-11 07:37:22,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:22,418 INFO L129 PetriNetUnfolder]: 2/47 cut-off events. [2021-06-11 07:37:22,418 INFO L130 PetriNetUnfolder]: For 747/747 co-relation queries the response was YES. [2021-06-11 07:37:22,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1031 conditions, 47 events. 2/47 cut-off events. For 747/747 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 279 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 984. Up to 41 conditions per place. [2021-06-11 07:37:22,419 INFO L132 encePairwiseOnDemand]: 124/164 looper letters, 3 selfloop transitions, 40 changer transitions 0/47 dead transitions. [2021-06-11 07:37:22,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 47 transitions, 1310 flow [2021-06-11 07:37:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2021-06-11 07:37:22,420 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6634146341463415 [2021-06-11 07:37:22,420 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2021-06-11 07:37:22,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2021-06-11 07:37:22,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:22,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2021-06-11 07:37:22,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,421 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,421 INFO L185 Difference]: Start difference. First operand has 161 places, 46 transitions, 1146 flow. Second operand 5 states and 544 transitions. [2021-06-11 07:37:22,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 47 transitions, 1310 flow [2021-06-11 07:37:22,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 47 transitions, 1193 flow, removed 39 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:22,427 INFO L241 Difference]: Finished difference. Result has 165 places, 47 transitions, 1193 flow [2021-06-11 07:37:22,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1029, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1193, PETRI_PLACES=165, PETRI_TRANSITIONS=47} [2021-06-11 07:37:22,427 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 154 predicate places. [2021-06-11 07:37:22,427 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:22,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 47 transitions, 1193 flow [2021-06-11 07:37:22,427 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 47 transitions, 1193 flow [2021-06-11 07:37:22,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 47 transitions, 1193 flow [2021-06-11 07:37:22,431 INFO L129 PetriNetUnfolder]: 2/47 cut-off events. [2021-06-11 07:37:22,431 INFO L130 PetriNetUnfolder]: For 741/741 co-relation queries the response was YES. [2021-06-11 07:37:22,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 47 events. 2/47 cut-off events. For 741/741 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 321 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 945. Up to 40 conditions per place. [2021-06-11 07:37:22,432 INFO L151 LiptonReduction]: Number of co-enabled transitions 168 [2021-06-11 07:37:22,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,458 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:22,458 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:22,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 07:37:22,458 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 47 transitions, 1195 flow [2021-06-11 07:37:22,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,459 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:22,459 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:22,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-06-11 07:37:22,673 INFO L428 AbstractCegarLoop]: === Iteration 41 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:22,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:22,674 INFO L82 PathProgramCache]: Analyzing trace with hash -910261335, now seen corresponding path program 1 times [2021-06-11 07:37:22,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:22,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668088397] [2021-06-11 07:37:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:22,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:22,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668088397] [2021-06-11 07:37:22,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71489997] [2021-06-11 07:37:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:22,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:22,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:22,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,729 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:22,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:22,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:22,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,732 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:22,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:22,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:22,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:22,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:22,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124543354] [2021-06-11 07:37:22,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:22,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:22,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:22,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:22,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 165 [2021-06-11 07:37:22,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 47 transitions, 1195 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:22,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 165 [2021-06-11 07:37:22,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:22,775 INFO L129 PetriNetUnfolder]: 2/48 cut-off events. [2021-06-11 07:37:22,775 INFO L130 PetriNetUnfolder]: For 786/786 co-relation queries the response was YES. [2021-06-11 07:37:22,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 48 events. 2/48 cut-off events. For 786/786 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 289 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 1029. Up to 42 conditions per place. [2021-06-11 07:37:22,776 INFO L132 encePairwiseOnDemand]: 124/165 looper letters, 3 selfloop transitions, 41 changer transitions 0/48 dead transitions. [2021-06-11 07:37:22,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 48 transitions, 1363 flow [2021-06-11 07:37:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2021-06-11 07:37:22,777 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6606060606060606 [2021-06-11 07:37:22,777 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2021-06-11 07:37:22,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2021-06-11 07:37:22,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:22,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2021-06-11 07:37:22,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,778 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,778 INFO L185 Difference]: Start difference. First operand has 165 places, 47 transitions, 1195 flow. Second operand 5 states and 545 transitions. [2021-06-11 07:37:22,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 48 transitions, 1363 flow [2021-06-11 07:37:22,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 48 transitions, 1243 flow, removed 40 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:22,784 INFO L241 Difference]: Finished difference. Result has 169 places, 48 transitions, 1243 flow [2021-06-11 07:37:22,785 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1075, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1243, PETRI_PLACES=169, PETRI_TRANSITIONS=48} [2021-06-11 07:37:22,785 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 158 predicate places. [2021-06-11 07:37:22,785 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:22,785 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 48 transitions, 1243 flow [2021-06-11 07:37:22,785 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 48 transitions, 1243 flow [2021-06-11 07:37:22,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 48 transitions, 1243 flow [2021-06-11 07:37:22,789 INFO L129 PetriNetUnfolder]: 2/48 cut-off events. [2021-06-11 07:37:22,789 INFO L130 PetriNetUnfolder]: For 780/780 co-relation queries the response was YES. [2021-06-11 07:37:22,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1036 conditions, 48 events. 2/48 cut-off events. For 780/780 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 334 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 989. Up to 41 conditions per place. [2021-06-11 07:37:22,790 INFO L151 LiptonReduction]: Number of co-enabled transitions 172 [2021-06-11 07:37:22,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:22,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:22,843 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:22,843 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:22,843 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-06-11 07:37:22,843 INFO L480 AbstractCegarLoop]: Abstraction has has 169 places, 48 transitions, 1245 flow [2021-06-11 07:37:22,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:22,843 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:22,843 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:23,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:23,057 INFO L428 AbstractCegarLoop]: === Iteration 42 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:23,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:23,057 INFO L82 PathProgramCache]: Analyzing trace with hash -881632184, now seen corresponding path program 1 times [2021-06-11 07:37:23,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:23,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058741778] [2021-06-11 07:37:23,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:23,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:23,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058741778] [2021-06-11 07:37:23,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538544856] [2021-06-11 07:37:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:23,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:23,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:23,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,116 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:23,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:23,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:23,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:23,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442891417] [2021-06-11 07:37:23,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:23,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:23,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:23,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:23,119 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 166 [2021-06-11 07:37:23,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 48 transitions, 1245 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:23,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 166 [2021-06-11 07:37:23,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:23,165 INFO L129 PetriNetUnfolder]: 2/49 cut-off events. [2021-06-11 07:37:23,165 INFO L130 PetriNetUnfolder]: For 826/826 co-relation queries the response was YES. [2021-06-11 07:37:23,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 49 events. 2/49 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 292 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 1075. Up to 43 conditions per place. [2021-06-11 07:37:23,166 INFO L132 encePairwiseOnDemand]: 124/166 looper letters, 3 selfloop transitions, 42 changer transitions 0/49 dead transitions. [2021-06-11 07:37:23,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 49 transitions, 1417 flow [2021-06-11 07:37:23,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:23,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2021-06-11 07:37:23,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6578313253012048 [2021-06-11 07:37:23,167 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 546 transitions. [2021-06-11 07:37:23,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 546 transitions. [2021-06-11 07:37:23,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:23,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 546 transitions. [2021-06-11 07:37:23,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,169 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,169 INFO L185 Difference]: Start difference. First operand has 169 places, 48 transitions, 1245 flow. Second operand 5 states and 546 transitions. [2021-06-11 07:37:23,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 49 transitions, 1417 flow [2021-06-11 07:37:23,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 49 transitions, 1294 flow, removed 41 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:23,175 INFO L241 Difference]: Finished difference. Result has 173 places, 49 transitions, 1294 flow [2021-06-11 07:37:23,175 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1294, PETRI_PLACES=173, PETRI_TRANSITIONS=49} [2021-06-11 07:37:23,175 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 162 predicate places. [2021-06-11 07:37:23,175 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:23,176 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 49 transitions, 1294 flow [2021-06-11 07:37:23,176 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 49 transitions, 1294 flow [2021-06-11 07:37:23,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 173 places, 49 transitions, 1294 flow [2021-06-11 07:37:23,180 INFO L129 PetriNetUnfolder]: 2/49 cut-off events. [2021-06-11 07:37:23,180 INFO L130 PetriNetUnfolder]: For 820/820 co-relation queries the response was YES. [2021-06-11 07:37:23,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 49 events. 2/49 cut-off events. For 820/820 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 333 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 1034. Up to 42 conditions per place. [2021-06-11 07:37:23,182 INFO L151 LiptonReduction]: Number of co-enabled transitions 176 [2021-06-11 07:37:23,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,211 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:23,211 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:23,211 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-06-11 07:37:23,213 INFO L480 AbstractCegarLoop]: Abstraction has has 173 places, 49 transitions, 1296 flow [2021-06-11 07:37:23,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,213 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:23,213 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:23,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:23,428 INFO L428 AbstractCegarLoop]: === Iteration 43 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:23,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:23,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1740849183, now seen corresponding path program 1 times [2021-06-11 07:37:23,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:23,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995217796] [2021-06-11 07:37:23,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:23,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:23,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995217796] [2021-06-11 07:37:23,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096438621] [2021-06-11 07:37:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:23,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:23,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:23,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,491 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-06-11 07:37:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:23,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:23,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:23,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699095301] [2021-06-11 07:37:23,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:23,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:23,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:23,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:23,493 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 167 [2021-06-11 07:37:23,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 49 transitions, 1296 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:23,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 167 [2021-06-11 07:37:23,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:23,532 INFO L129 PetriNetUnfolder]: 2/50 cut-off events. [2021-06-11 07:37:23,532 INFO L130 PetriNetUnfolder]: For 867/867 co-relation queries the response was YES. [2021-06-11 07:37:23,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 50 events. 2/50 cut-off events. For 867/867 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 314 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 1122. Up to 44 conditions per place. [2021-06-11 07:37:23,533 INFO L132 encePairwiseOnDemand]: 124/167 looper letters, 3 selfloop transitions, 43 changer transitions 0/50 dead transitions. [2021-06-11 07:37:23,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 50 transitions, 1472 flow [2021-06-11 07:37:23,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:23,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 547 transitions. [2021-06-11 07:37:23,534 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6550898203592814 [2021-06-11 07:37:23,534 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 547 transitions. [2021-06-11 07:37:23,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 547 transitions. [2021-06-11 07:37:23,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:23,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 547 transitions. [2021-06-11 07:37:23,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,535 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,535 INFO L185 Difference]: Start difference. First operand has 173 places, 49 transitions, 1296 flow. Second operand 5 states and 547 transitions. [2021-06-11 07:37:23,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 50 transitions, 1472 flow [2021-06-11 07:37:23,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 50 transitions, 1346 flow, removed 42 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:23,541 INFO L241 Difference]: Finished difference. Result has 177 places, 50 transitions, 1346 flow [2021-06-11 07:37:23,541 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1346, PETRI_PLACES=177, PETRI_TRANSITIONS=50} [2021-06-11 07:37:23,541 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 166 predicate places. [2021-06-11 07:37:23,541 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:23,541 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 50 transitions, 1346 flow [2021-06-11 07:37:23,541 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 50 transitions, 1346 flow [2021-06-11 07:37:23,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 177 places, 50 transitions, 1346 flow [2021-06-11 07:37:23,545 INFO L129 PetriNetUnfolder]: 2/50 cut-off events. [2021-06-11 07:37:23,545 INFO L130 PetriNetUnfolder]: For 861/861 co-relation queries the response was YES. [2021-06-11 07:37:23,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 50 events. 2/50 cut-off events. For 861/861 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 352 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 1080. Up to 43 conditions per place. [2021-06-11 07:37:23,547 INFO L151 LiptonReduction]: Number of co-enabled transitions 180 [2021-06-11 07:37:23,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,576 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:23,576 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:23,576 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-06-11 07:37:23,576 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 50 transitions, 1348 flow [2021-06-11 07:37:23,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,577 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:23,577 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:23,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-06-11 07:37:23,791 INFO L428 AbstractCegarLoop]: === Iteration 44 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:23,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:23,792 INFO L82 PathProgramCache]: Analyzing trace with hash -824373882, now seen corresponding path program 1 times [2021-06-11 07:37:23,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:23,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265760903] [2021-06-11 07:37:23,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:23,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:23,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265760903] [2021-06-11 07:37:23,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492774484] [2021-06-11 07:37:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:23,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-11 07:37:23,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:23,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 07:37:23,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:23,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 07:37:23,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:23,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:23,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-11 07:37:23,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751277225] [2021-06-11 07:37:23,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:23,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:23,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:23,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:23,871 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 168 [2021-06-11 07:37:23,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 50 transitions, 1348 flow. Second operand has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:23,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 168 [2021-06-11 07:37:23,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:23,914 INFO L129 PetriNetUnfolder]: 2/51 cut-off events. [2021-06-11 07:37:23,914 INFO L130 PetriNetUnfolder]: For 909/909 co-relation queries the response was YES. [2021-06-11 07:37:23,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1221 conditions, 51 events. 2/51 cut-off events. For 909/909 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 323 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 1170. Up to 45 conditions per place. [2021-06-11 07:37:23,915 INFO L132 encePairwiseOnDemand]: 124/168 looper letters, 3 selfloop transitions, 44 changer transitions 0/51 dead transitions. [2021-06-11 07:37:23,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 51 transitions, 1528 flow [2021-06-11 07:37:23,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:23,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:23,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 548 transitions. [2021-06-11 07:37:23,916 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6523809523809524 [2021-06-11 07:37:23,916 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 548 transitions. [2021-06-11 07:37:23,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 548 transitions. [2021-06-11 07:37:23,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:23,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 548 transitions. [2021-06-11 07:37:23,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,917 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,917 INFO L185 Difference]: Start difference. First operand has 177 places, 50 transitions, 1348 flow. Second operand 5 states and 548 transitions. [2021-06-11 07:37:23,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 51 transitions, 1528 flow [2021-06-11 07:37:23,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 51 transitions, 1399 flow, removed 43 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:23,924 INFO L241 Difference]: Finished difference. Result has 181 places, 51 transitions, 1399 flow [2021-06-11 07:37:23,925 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=1219, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1399, PETRI_PLACES=181, PETRI_TRANSITIONS=51} [2021-06-11 07:37:23,925 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 170 predicate places. [2021-06-11 07:37:23,925 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:23,925 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 51 transitions, 1399 flow [2021-06-11 07:37:23,925 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 51 transitions, 1399 flow [2021-06-11 07:37:23,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 51 transitions, 1399 flow [2021-06-11 07:37:23,929 INFO L129 PetriNetUnfolder]: 2/51 cut-off events. [2021-06-11 07:37:23,929 INFO L130 PetriNetUnfolder]: For 903/903 co-relation queries the response was YES. [2021-06-11 07:37:23,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1177 conditions, 51 events. 2/51 cut-off events. For 903/903 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 358 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 1127. Up to 44 conditions per place. [2021-06-11 07:37:23,930 INFO L151 LiptonReduction]: Number of co-enabled transitions 184 [2021-06-11 07:37:23,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:23,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:23,958 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:23,958 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:23,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-06-11 07:37:23,959 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 51 transitions, 1401 flow [2021-06-11 07:37:23,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:23,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:23,959 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:24,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:24,177 INFO L428 AbstractCegarLoop]: === Iteration 45 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:24,177 INFO L82 PathProgramCache]: Analyzing trace with hash -795744731, now seen corresponding path program 1 times [2021-06-11 07:37:24,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:24,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404723827] [2021-06-11 07:37:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:24,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,200 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 07:37:24,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:24,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404723827] [2021-06-11 07:37:24,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639199426] [2021-06-11 07:37:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:24,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-11 07:37:24,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 07:37:24,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 07:37:24,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:24,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:24,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:24,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 07:37:24,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:24,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 07:37:24,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-06-11 07:37:24,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25180201] [2021-06-11 07:37:24,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 07:37:24,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:24,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 07:37:24,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-11 07:37:24,268 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 169 [2021-06-11 07:37:24,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 51 transitions, 1401 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:24,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 169 [2021-06-11 07:37:24,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:24,340 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2021-06-11 07:37:24,340 INFO L130 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2021-06-11 07:37:24,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1318 conditions, 53 events. 2/53 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 327 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 1266. Up to 47 conditions per place. [2021-06-11 07:37:24,341 INFO L132 encePairwiseOnDemand]: 165/169 looper letters, 46 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2021-06-11 07:37:24,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 53 transitions, 1678 flow [2021-06-11 07:37:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 07:37:24,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 07:37:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 496 transitions. [2021-06-11 07:37:24,342 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.58698224852071 [2021-06-11 07:37:24,342 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 496 transitions. [2021-06-11 07:37:24,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 496 transitions. [2021-06-11 07:37:24,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:24,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 496 transitions. [2021-06-11 07:37:24,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,344 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,344 INFO L185 Difference]: Start difference. First operand has 181 places, 51 transitions, 1401 flow. Second operand 5 states and 496 transitions. [2021-06-11 07:37:24,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 53 transitions, 1678 flow [2021-06-11 07:37:24,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 53 transitions, 1546 flow, removed 44 selfloop flow, removed 1 redundant places. [2021-06-11 07:37:24,352 INFO L241 Difference]: Finished difference. Result has 185 places, 52 transitions, 1371 flow [2021-06-11 07:37:24,352 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=1269, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1371, PETRI_PLACES=185, PETRI_TRANSITIONS=52} [2021-06-11 07:37:24,353 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 174 predicate places. [2021-06-11 07:37:24,353 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:24,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 52 transitions, 1371 flow [2021-06-11 07:37:24,353 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 52 transitions, 1371 flow [2021-06-11 07:37:24,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 185 places, 52 transitions, 1371 flow [2021-06-11 07:37:24,357 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2021-06-11 07:37:24,357 INFO L130 PetriNetUnfolder]: For 1809/1809 co-relation queries the response was YES. [2021-06-11 07:37:24,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1230 conditions, 53 events. 2/53 cut-off events. For 1809/1809 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 374 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 1179. Up to 45 conditions per place. [2021-06-11 07:37:24,359 INFO L151 LiptonReduction]: Number of co-enabled transitions 188 [2021-06-11 07:37:24,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:24,391 INFO L163 LiptonReduction]: Checked pairs total: 2 [2021-06-11 07:37:24,391 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 07:37:24,391 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-06-11 07:37:24,391 INFO L480 AbstractCegarLoop]: Abstraction has has 185 places, 52 transitions, 1373 flow [2021-06-11 07:37:24,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 07:37:24,391 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-06-11 07:37:24,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 07:37:24,606 INFO L428 AbstractCegarLoop]: === Iteration 46 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-11 07:37:24,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 07:37:24,607 INFO L82 PathProgramCache]: Analyzing trace with hash -767115580, now seen corresponding path program 1 times [2021-06-11 07:37:24,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 07:37:24,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084118583] [2021-06-11 07:37:24,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 07:37:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 07:37:24,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:24,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 07:37:24,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 07:37:24,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 07:37:24,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 07:37:24,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084118583] [2021-06-11 07:37:24,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 07:37:24,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 07:37:24,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149986643] [2021-06-11 07:37:24,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 07:37:24,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 07:37:24,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 07:37:24,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 07:37:24,627 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 170 [2021-06-11 07:37:24,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 52 transitions, 1373 flow. Second operand has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 07:37:24,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 170 [2021-06-11 07:37:24,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 07:37:24,663 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-06-11 07:37:24,663 INFO L130 PetriNetUnfolder]: For 1775/1775 co-relation queries the response was YES. [2021-06-11 07:37:24,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 49 events. 1/49 cut-off events. For 1775/1775 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 341 event pairs, 0 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 1086. Up to 44 conditions per place. [2021-06-11 07:37:24,664 INFO L132 encePairwiseOnDemand]: 167/170 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2021-06-11 07:37:24,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 49 transitions, 1278 flow [2021-06-11 07:37:24,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 07:37:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 07:37:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 447 transitions. [2021-06-11 07:37:24,665 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6573529411764706 [2021-06-11 07:37:24,665 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 447 transitions. [2021-06-11 07:37:24,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 447 transitions. [2021-06-11 07:37:24,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 07:37:24,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 447 transitions. [2021-06-11 07:37:24,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,666 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,666 INFO L185 Difference]: Start difference. First operand has 185 places, 52 transitions, 1373 flow. Second operand 4 states and 447 transitions. [2021-06-11 07:37:24,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 49 transitions, 1278 flow [2021-06-11 07:37:24,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 49 transitions, 1270 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-11 07:37:24,670 INFO L241 Difference]: Finished difference. Result has 184 places, 0 transitions, 0 flow [2021-06-11 07:37:24,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=1178, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=184, PETRI_TRANSITIONS=0} [2021-06-11 07:37:24,670 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 173 predicate places. [2021-06-11 07:37:24,670 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 07:37:24,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 0 transitions, 0 flow [2021-06-11 07:37:24,671 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 0 transitions, 0 flow [2021-06-11 07:37:24,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 07:37:24,671 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 07:37:24,671 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 07:37:24,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 07:37:24,671 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 07:37:24,671 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 07:37:24,671 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 07:37:24,671 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 07:37:24,671 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 07:37:24,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 07:37:24,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-11 07:37:24,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 07:37:24 BasicIcfg [2021-06-11 07:37:24,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 07:37:24,674 INFO L168 Benchmark]: Toolchain (without parser) took 20816.08 ms. Allocated memory was 350.2 MB in the beginning and 509.6 MB in the end (delta: 159.4 MB). Free memory was 313.0 MB in the beginning and 194.5 MB in the end (delta: 118.6 MB). Peak memory consumption was 281.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:37:24,674 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 350.2 MB. Free memory is still 330.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 07:37:24,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.32 ms. Allocated memory is still 350.2 MB. Free memory was 312.8 MB in the beginning and 313.7 MB in the end (delta: -886.2 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-11 07:37:24,675 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.30 ms. Allocated memory is still 350.2 MB. Free memory was 313.7 MB in the beginning and 311.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:37:24,675 INFO L168 Benchmark]: Boogie Preprocessor took 13.73 ms. Allocated memory is still 350.2 MB. Free memory was 311.6 MB in the beginning and 310.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:37:24,675 INFO L168 Benchmark]: RCFGBuilder took 268.27 ms. Allocated memory is still 350.2 MB. Free memory was 310.5 MB in the beginning and 286.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 07:37:24,675 INFO L168 Benchmark]: TraceAbstraction took 20144.00 ms. Allocated memory was 350.2 MB in the beginning and 509.6 MB in the end (delta: 159.4 MB). Free memory was 286.4 MB in the beginning and 194.5 MB in the end (delta: 91.9 MB). Peak memory consumption was 254.5 MB. Max. memory is 16.0 GB. [2021-06-11 07:37:24,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 350.2 MB. Free memory is still 330.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 343.32 ms. Allocated memory is still 350.2 MB. Free memory was 312.8 MB in the beginning and 313.7 MB in the end (delta: -886.2 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.30 ms. Allocated memory is still 350.2 MB. Free memory was 313.7 MB in the beginning and 311.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.73 ms. Allocated memory is still 350.2 MB. Free memory was 311.6 MB in the beginning and 310.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 268.27 ms. Allocated memory is still 350.2 MB. Free memory was 310.5 MB in the beginning and 286.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20144.00 ms. Allocated memory was 350.2 MB in the beginning and 509.6 MB in the end (delta: 159.4 MB). Free memory was 286.4 MB in the beginning and 194.5 MB in the end (delta: 91.9 MB). Peak memory consumption was 254.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3857.5ms, 61 PlacesBefore, 11 PlacesAfterwards, 62 TransitionsBefore, 10 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 302 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 269, positive: 260, positive conditional: 0, positive unconditional: 260, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 227, positive: 218, positive conditional: 0, positive unconditional: 218, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 227, positive: 218, positive conditional: 0, positive unconditional: 218, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 227, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 269, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 227, unknown conditional: 0, unknown unconditional: 227] , Statistics on independence cache: Total cache size (in pairs): 389, Positive cache size: 380, Positive conditional cache size: 0, Positive unconditional cache size: 380, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3ms, 13 PlacesBefore, 12 PlacesAfterwards, 8 TransitionsBefore, 8 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 389, Positive cache size: 380, Positive conditional cache size: 0, Positive unconditional cache size: 380, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2ms, 13 PlacesBefore, 13 PlacesAfterwards, 9 TransitionsBefore, 9 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 389, Positive cache size: 380, Positive conditional cache size: 0, Positive unconditional cache size: 380, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.5ms, 16 PlacesBefore, 16 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 20 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 404, Positive cache size: 395, Positive conditional cache size: 0, Positive unconditional cache size: 395, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.8ms, 20 PlacesBefore, 20 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 419, Positive cache size: 410, Positive conditional cache size: 0, Positive unconditional cache size: 410, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.5ms, 25 PlacesBefore, 25 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 434, Positive cache size: 425, Positive conditional cache size: 0, Positive unconditional cache size: 425, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.6ms, 29 PlacesBefore, 29 PlacesAfterwards, 13 TransitionsBefore, 13 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 449, Positive cache size: 440, Positive conditional cache size: 0, Positive unconditional cache size: 440, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.8ms, 33 PlacesBefore, 33 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 464, Positive cache size: 455, Positive conditional cache size: 0, Positive unconditional cache size: 455, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.6ms, 37 PlacesBefore, 37 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 479, Positive cache size: 470, Positive conditional cache size: 0, Positive unconditional cache size: 470, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.1ms, 41 PlacesBefore, 41 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 494, Positive cache size: 485, Positive conditional cache size: 0, Positive unconditional cache size: 485, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.0ms, 45 PlacesBefore, 45 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 509, Positive cache size: 500, Positive conditional cache size: 0, Positive unconditional cache size: 500, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.6ms, 49 PlacesBefore, 49 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 524, Positive cache size: 515, Positive conditional cache size: 0, Positive unconditional cache size: 515, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.8ms, 53 PlacesBefore, 53 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 539, Positive cache size: 530, Positive conditional cache size: 0, Positive unconditional cache size: 530, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8ms, 57 PlacesBefore, 57 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 554, Positive cache size: 545, Positive conditional cache size: 0, Positive unconditional cache size: 545, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.2ms, 61 PlacesBefore, 61 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 569, Positive cache size: 560, Positive conditional cache size: 0, Positive unconditional cache size: 560, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.4ms, 65 PlacesBefore, 65 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 584, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.3ms, 69 PlacesBefore, 69 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 599, Positive cache size: 590, Positive conditional cache size: 0, Positive unconditional cache size: 590, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.3ms, 73 PlacesBefore, 73 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 76 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 614, Positive cache size: 605, Positive conditional cache size: 0, Positive unconditional cache size: 605, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.8ms, 77 PlacesBefore, 77 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 629, Positive cache size: 620, Positive conditional cache size: 0, Positive unconditional cache size: 620, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.8ms, 81 PlacesBefore, 81 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 644, Positive cache size: 635, Positive conditional cache size: 0, Positive unconditional cache size: 635, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.7ms, 85 PlacesBefore, 85 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 88 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 659, Positive cache size: 650, Positive conditional cache size: 0, Positive unconditional cache size: 650, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.8ms, 89 PlacesBefore, 89 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 674, Positive cache size: 665, Positive conditional cache size: 0, Positive unconditional cache size: 665, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.4ms, 93 PlacesBefore, 93 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 689, Positive cache size: 680, Positive conditional cache size: 0, Positive unconditional cache size: 680, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.6ms, 97 PlacesBefore, 97 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 100 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 704, Positive cache size: 695, Positive conditional cache size: 0, Positive unconditional cache size: 695, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.3ms, 101 PlacesBefore, 101 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 719, Positive cache size: 710, Positive conditional cache size: 0, Positive unconditional cache size: 710, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.8ms, 105 PlacesBefore, 105 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 734, Positive cache size: 725, Positive conditional cache size: 0, Positive unconditional cache size: 725, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.6ms, 109 PlacesBefore, 109 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 749, Positive cache size: 740, Positive conditional cache size: 0, Positive unconditional cache size: 740, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.3ms, 113 PlacesBefore, 113 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 764, Positive cache size: 755, Positive conditional cache size: 0, Positive unconditional cache size: 755, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.2ms, 117 PlacesBefore, 117 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 779, Positive cache size: 770, Positive conditional cache size: 0, Positive unconditional cache size: 770, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.5ms, 121 PlacesBefore, 121 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 124 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 794, Positive cache size: 785, Positive conditional cache size: 0, Positive unconditional cache size: 785, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.2ms, 125 PlacesBefore, 125 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 809, Positive cache size: 800, Positive conditional cache size: 0, Positive unconditional cache size: 800, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.2ms, 129 PlacesBefore, 129 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 824, Positive cache size: 815, Positive conditional cache size: 0, Positive unconditional cache size: 815, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.2ms, 133 PlacesBefore, 133 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 839, Positive cache size: 830, Positive conditional cache size: 0, Positive unconditional cache size: 830, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.7ms, 137 PlacesBefore, 137 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 854, Positive cache size: 845, Positive conditional cache size: 0, Positive unconditional cache size: 845, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.2ms, 141 PlacesBefore, 141 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 869, Positive cache size: 860, Positive conditional cache size: 0, Positive unconditional cache size: 860, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.4ms, 145 PlacesBefore, 145 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 884, Positive cache size: 875, Positive conditional cache size: 0, Positive unconditional cache size: 875, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.4ms, 149 PlacesBefore, 149 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 899, Positive cache size: 890, Positive conditional cache size: 0, Positive unconditional cache size: 890, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.3ms, 153 PlacesBefore, 153 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 914, Positive cache size: 905, Positive conditional cache size: 0, Positive unconditional cache size: 905, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.3ms, 157 PlacesBefore, 157 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 929, Positive cache size: 920, Positive conditional cache size: 0, Positive unconditional cache size: 920, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.0ms, 161 PlacesBefore, 161 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 944, Positive cache size: 935, Positive conditional cache size: 0, Positive unconditional cache size: 935, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.1ms, 165 PlacesBefore, 165 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 959, Positive cache size: 950, Positive conditional cache size: 0, Positive unconditional cache size: 950, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.9ms, 169 PlacesBefore, 169 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 974, Positive cache size: 965, Positive conditional cache size: 0, Positive unconditional cache size: 965, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.7ms, 173 PlacesBefore, 173 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 989, Positive cache size: 980, Positive conditional cache size: 0, Positive unconditional cache size: 980, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.9ms, 177 PlacesBefore, 177 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1004, Positive cache size: 995, Positive conditional cache size: 0, Positive unconditional cache size: 995, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.5ms, 181 PlacesBefore, 181 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1019, Positive cache size: 1010, Positive conditional cache size: 0, Positive unconditional cache size: 1010, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.9ms, 185 PlacesBefore, 185 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1034, Positive cache size: 1025, Positive conditional cache size: 0, Positive unconditional cache size: 1025, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4ms, 184 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1034, Positive cache size: 1025, Positive conditional cache size: 0, Positive unconditional cache size: 1025, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - PositiveResult [Line: 706]: 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, 65 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 20086.4ms, OverallIterations: 46, TraceHistogramMax: 2, EmptinessCheckTime: 0.0ms, AutomataDifference: 1683.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3905.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1086 SDtfs, 3 SDslu, 4 SDs, 0 SdLazy, 630 SolverSat, 1019 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 726.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 521 GetRequests, 384 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 283.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1401occurred in iteration=44, InterpolantAutomatonStates: 225, 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: 242.5ms SsaConstructionTime, 660.6ms SatisfiabilityAnalysisTime, 1635.9ms InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 90 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 1187 SizeOfPredicates, 23 NumberOfNonLiveVariables, 4936 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 89 InterpolantComputations, 3 PerfectInterpolantSequences, 3/257 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...