/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 11:18:24,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:18:24,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:18:24,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:18:24,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:18:24,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:18:24,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:18:24,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:18:24,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:18:24,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:18:24,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:18:24,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:18:24,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:18:24,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:18:24,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:18:24,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:18:24,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:18:24,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:18:24,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:18:24,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:18:24,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:18:24,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:18:24,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:18:24,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:18:24,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 11:18:24,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:18:24,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:18:24,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:18:24,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:18:24,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:18:24,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:18:24,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:18:24,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:18:24,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:18:24,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:18:24,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:18:24,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2021-03-24 11:18:24,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:18:24,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:18:24,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:18:24,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:18:24,717 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:18:24,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:18:24,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:18:24,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:18:24,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:18:24,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:18:24,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:18:24,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:18:24,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:18:24,719 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:18:24,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:18:24,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:18:24,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:18:24,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:18:24,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:18:24,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:18:24,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:18:24,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:18:24,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:18:24,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:18:24,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:18:24,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:18:24,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:18:24,721 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:18:24,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:18:24,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:18:25,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:18:25,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:18:25,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:18:25,027 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:18:25,028 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:18:25,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-03-24 11:18:25,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd58458bd/2bf6b0ac76144bb5ab55aa62796a16f2/FLAGca853abfa [2021-03-24 11:18:25,731 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:18:25,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-03-24 11:18:25,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd58458bd/2bf6b0ac76144bb5ab55aa62796a16f2/FLAGca853abfa [2021-03-24 11:18:26,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd58458bd/2bf6b0ac76144bb5ab55aa62796a16f2 [2021-03-24 11:18:26,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:18:26,077 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:18:26,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:18:26,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:18:26,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:18:26,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:18:26" (1/1) ... [2021-03-24 11:18:26,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c9cb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:26, skipping insertion in model container [2021-03-24 11:18:26,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:18:26" (1/1) ... [2021-03-24 11:18:26,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:18:26,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:18:26,700 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-03-24 11:18:26,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:18:26,736 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:18:26,801 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-03-24 11:18:26,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:18:27,059 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:18:27,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27 WrapperNode [2021-03-24 11:18:27,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:18:27,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:18:27,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:18:27,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:18:27,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:18:27,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:18:27,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:18:27,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:18:27,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... [2021-03-24 11:18:27,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:18:27,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:18:27,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:18:27,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:18:27,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:18:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:18:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 11:18:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 11:18:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-24 11:18:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:18:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:18:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-24 11:18:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-24 11:18:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:18:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:18:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:18:27,236 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 11:18:27,840 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:18:27,841 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-24 11:18:27,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:18:27 BoogieIcfgContainer [2021-03-24 11:18:27,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:18:27,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:18:27,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:18:27,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:18:27,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:18:26" (1/3) ... [2021-03-24 11:18:27,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ab4ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:18:27, skipping insertion in model container [2021-03-24 11:18:27,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:27" (2/3) ... [2021-03-24 11:18:27,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ab4ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:18:27, skipping insertion in model container [2021-03-24 11:18:27,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:18:27" (3/3) ... [2021-03-24 11:18:27,849 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-03-24 11:18:27,852 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:18:27,855 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-24 11:18:27,856 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:18:27,881 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,882 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,882 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,882 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,885 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,886 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,886 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,886 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,886 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,887 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,887 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,888 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,888 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,888 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,888 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,888 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,888 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,888 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,889 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,889 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,889 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,889 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,889 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,889 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,889 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,890 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,890 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,890 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,890 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,890 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,890 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,890 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,891 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,891 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,891 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,892 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,892 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,892 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,892 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,892 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,892 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,892 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,892 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,893 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,893 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,894 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,894 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,894 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,895 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,895 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,896 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,896 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,896 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,896 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,896 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,896 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,897 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,897 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,897 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,897 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,897 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,897 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,897 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,897 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,898 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,898 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,899 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,900 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,900 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,901 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,901 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,904 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,905 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,905 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,905 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,906 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:27,911 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-24 11:18:27,926 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-24 11:18:27,943 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:18:27,943 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:18:27,943 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:18:27,943 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:18:27,943 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:18:27,943 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:18:27,943 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:18:27,944 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:18:27,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 350 flow [2021-03-24 11:18:28,019 INFO L129 PetriNetUnfolder]: 11/204 cut-off events. [2021-03-24 11:18:28,019 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 11:18:28,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 204 events. 11/204 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 407 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2021-03-24 11:18:28,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 164 transitions, 350 flow [2021-03-24 11:18:28,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 152 transitions, 322 flow [2021-03-24 11:18:28,041 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:18:28,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 152 transitions, 322 flow [2021-03-24 11:18:28,050 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 152 transitions, 322 flow [2021-03-24 11:18:28,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 152 transitions, 322 flow [2021-03-24 11:18:28,082 INFO L129 PetriNetUnfolder]: 8/185 cut-off events. [2021-03-24 11:18:28,082 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 11:18:28,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 185 events. 8/185 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 343 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 105. Up to 4 conditions per place. [2021-03-24 11:18:28,086 INFO L142 LiptonReduction]: Number of co-enabled transitions 2288 [2021-03-24 11:18:31,101 INFO L154 LiptonReduction]: Checked pairs total: 3162 [2021-03-24 11:18:31,101 INFO L156 LiptonReduction]: Total number of compositions: 115 [2021-03-24 11:18:31,103 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3063 [2021-03-24 11:18:31,117 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-24 11:18:31,117 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:18:31,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:31,118 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:31,118 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:31,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:31,123 INFO L82 PathProgramCache]: Analyzing trace with hash -399348905, now seen corresponding path program 1 times [2021-03-24 11:18:31,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:31,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137133594] [2021-03-24 11:18:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:31,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:31,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:31,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137133594] [2021-03-24 11:18:31,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:31,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:18:31,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34034631] [2021-03-24 11:18:31,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:18:31,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:31,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:18:31,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:18:31,432 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 279 [2021-03-24 11:18:31,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 65 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:31,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 279 [2021-03-24 11:18:31,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:31,456 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-03-24 11:18:31,456 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 11:18:31,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 70 events. 2/70 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 4/64 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2021-03-24 11:18:31,457 INFO L132 encePairwiseOnDemand]: 272/279 looper letters, 2 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2021-03-24 11:18:31,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 58 transitions, 142 flow [2021-03-24 11:18:31,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:18:31,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:18:31,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2021-03-24 11:18:31,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8709677419354839 [2021-03-24 11:18:31,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2021-03-24 11:18:31,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2021-03-24 11:18:31,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:31,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2021-03-24 11:18:31,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,492 INFO L185 Difference]: Start difference. First operand has 64 places, 65 transitions, 148 flow. Second operand 3 states and 729 transitions. [2021-03-24 11:18:31,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 58 transitions, 142 flow [2021-03-24 11:18:31,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 58 transitions, 130 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 11:18:31,496 INFO L241 Difference]: Finished difference. Result has 59 places, 56 transitions, 122 flow [2021-03-24 11:18:31,498 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=59, PETRI_TRANSITIONS=56} [2021-03-24 11:18:31,499 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2021-03-24 11:18:31,499 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 56 transitions, 122 flow [2021-03-24 11:18:31,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,499 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:31,499 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:31,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:18:31,501 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:31,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:31,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1522193569, now seen corresponding path program 1 times [2021-03-24 11:18:31,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:31,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734976913] [2021-03-24 11:18:31,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:31,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:31,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:18:31,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:31,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734976913] [2021-03-24 11:18:31,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:31,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:18:31,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175328055] [2021-03-24 11:18:31,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:18:31,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:31,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:18:31,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:18:31,637 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 279 [2021-03-24 11:18:31,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 56 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:31,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 279 [2021-03-24 11:18:31,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:31,789 INFO L129 PetriNetUnfolder]: 243/519 cut-off events. [2021-03-24 11:18:31,789 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:18:31,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 519 events. 243/519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2602 event pairs, 117 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 953. Up to 223 conditions per place. [2021-03-24 11:18:31,796 INFO L132 encePairwiseOnDemand]: 270/279 looper letters, 38 selfloop transitions, 8 changer transitions 1/69 dead transitions. [2021-03-24 11:18:31,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 69 transitions, 242 flow [2021-03-24 11:18:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:18:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:18:31,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 843 transitions. [2021-03-24 11:18:31,800 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6043010752688172 [2021-03-24 11:18:31,800 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 843 transitions. [2021-03-24 11:18:31,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 843 transitions. [2021-03-24 11:18:31,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:31,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 843 transitions. [2021-03-24 11:18:31,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.6) internal successors, (843), 5 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,806 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,806 INFO L185 Difference]: Start difference. First operand has 59 places, 56 transitions, 122 flow. Second operand 5 states and 843 transitions. [2021-03-24 11:18:31,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 69 transitions, 242 flow [2021-03-24 11:18:31,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 69 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:18:31,809 INFO L241 Difference]: Finished difference. Result has 60 places, 60 transitions, 162 flow [2021-03-24 11:18:31,809 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2021-03-24 11:18:31,810 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -4 predicate places. [2021-03-24 11:18:31,810 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 162 flow [2021-03-24 11:18:31,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:31,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:31,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:18:31,811 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:31,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:31,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1074180406, now seen corresponding path program 1 times [2021-03-24 11:18:31,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:31,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154135554] [2021-03-24 11:18:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:31,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:31,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:31,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:18:31,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:31,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:31,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154135554] [2021-03-24 11:18:31,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:31,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:18:31,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092366301] [2021-03-24 11:18:31,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:18:31,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:31,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:18:31,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:18:31,915 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 279 [2021-03-24 11:18:31,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:31,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:31,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 279 [2021-03-24 11:18:31,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:32,092 INFO L129 PetriNetUnfolder]: 387/806 cut-off events. [2021-03-24 11:18:32,092 INFO L130 PetriNetUnfolder]: For 119/124 co-relation queries the response was YES. [2021-03-24 11:18:32,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1747 conditions, 806 events. 387/806 cut-off events. For 119/124 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4473 event pairs, 125 based on Foata normal form. 32/829 useless extension candidates. Maximal degree in co-relation 710. Up to 493 conditions per place. [2021-03-24 11:18:32,097 INFO L132 encePairwiseOnDemand]: 271/279 looper letters, 42 selfloop transitions, 7 changer transitions 14/84 dead transitions. [2021-03-24 11:18:32,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 84 transitions, 348 flow [2021-03-24 11:18:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:18:32,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:18:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 820 transitions. [2021-03-24 11:18:32,100 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5878136200716846 [2021-03-24 11:18:32,100 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 820 transitions. [2021-03-24 11:18:32,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 820 transitions. [2021-03-24 11:18:32,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:32,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 820 transitions. [2021-03-24 11:18:32,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,105 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,105 INFO L185 Difference]: Start difference. First operand has 60 places, 60 transitions, 162 flow. Second operand 5 states and 820 transitions. [2021-03-24 11:18:32,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 84 transitions, 348 flow [2021-03-24 11:18:32,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:18:32,111 INFO L241 Difference]: Finished difference. Result has 65 places, 63 transitions, 205 flow [2021-03-24 11:18:32,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2021-03-24 11:18:32,111 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2021-03-24 11:18:32,111 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 205 flow [2021-03-24 11:18:32,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,112 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:32,112 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:32,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:18:32,112 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:32,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:32,113 INFO L82 PathProgramCache]: Analyzing trace with hash 747513475, now seen corresponding path program 1 times [2021-03-24 11:18:32,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:32,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316916233] [2021-03-24 11:18:32,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:32,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:32,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:18:32,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:32,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316916233] [2021-03-24 11:18:32,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:32,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:18:32,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736351711] [2021-03-24 11:18:32,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:18:32,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:32,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:18:32,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:18:32,187 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 279 [2021-03-24 11:18:32,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:32,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 279 [2021-03-24 11:18:32,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:32,397 INFO L129 PetriNetUnfolder]: 455/934 cut-off events. [2021-03-24 11:18:32,397 INFO L130 PetriNetUnfolder]: For 892/904 co-relation queries the response was YES. [2021-03-24 11:18:32,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 934 events. 455/934 cut-off events. For 892/904 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5377 event pairs, 141 based on Foata normal form. 47/972 useless extension candidates. Maximal degree in co-relation 2450. Up to 542 conditions per place. [2021-03-24 11:18:32,403 INFO L132 encePairwiseOnDemand]: 272/279 looper letters, 43 selfloop transitions, 9 changer transitions 25/94 dead transitions. [2021-03-24 11:18:32,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 94 transitions, 505 flow [2021-03-24 11:18:32,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:18:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:18:32,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 819 transitions. [2021-03-24 11:18:32,405 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5870967741935483 [2021-03-24 11:18:32,405 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 819 transitions. [2021-03-24 11:18:32,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 819 transitions. [2021-03-24 11:18:32,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:32,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 819 transitions. [2021-03-24 11:18:32,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,410 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 279.0) internal successors, (1674), 6 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,410 INFO L185 Difference]: Start difference. First operand has 65 places, 63 transitions, 205 flow. Second operand 5 states and 819 transitions. [2021-03-24 11:18:32,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 94 transitions, 505 flow [2021-03-24 11:18:32,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 94 transitions, 480 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-24 11:18:32,414 INFO L241 Difference]: Finished difference. Result has 68 places, 63 transitions, 275 flow [2021-03-24 11:18:32,415 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=275, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2021-03-24 11:18:32,415 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2021-03-24 11:18:32,415 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 275 flow [2021-03-24 11:18:32,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,415 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:32,416 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:32,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:18:32,416 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:32,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:32,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1056690672, now seen corresponding path program 1 times [2021-03-24 11:18:32,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:32,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404431321] [2021-03-24 11:18:32,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:32,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:32,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:32,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:32,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:32,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404431321] [2021-03-24 11:18:32,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:32,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:18:32,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105059264] [2021-03-24 11:18:32,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:18:32,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:32,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:18:32,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:18:32,462 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 279 [2021-03-24 11:18:32,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:32,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 279 [2021-03-24 11:18:32,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:32,474 INFO L129 PetriNetUnfolder]: 6/65 cut-off events. [2021-03-24 11:18:32,474 INFO L130 PetriNetUnfolder]: For 83/103 co-relation queries the response was YES. [2021-03-24 11:18:32,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 65 events. 6/65 cut-off events. For 83/103 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 4 based on Foata normal form. 15/78 useless extension candidates. Maximal degree in co-relation 133. Up to 14 conditions per place. [2021-03-24 11:18:32,475 INFO L132 encePairwiseOnDemand]: 277/279 looper letters, 3 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2021-03-24 11:18:32,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 42 transitions, 146 flow [2021-03-24 11:18:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:18:32,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:18:32,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2021-03-24 11:18:32,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8482676224611708 [2021-03-24 11:18:32,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 710 transitions. [2021-03-24 11:18:32,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 710 transitions. [2021-03-24 11:18:32,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:32,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 710 transitions. [2021-03-24 11:18:32,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,481 INFO L185 Difference]: Start difference. First operand has 68 places, 63 transitions, 275 flow. Second operand 3 states and 710 transitions. [2021-03-24 11:18:32,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 42 transitions, 146 flow [2021-03-24 11:18:32,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 116 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-24 11:18:32,482 INFO L241 Difference]: Finished difference. Result has 48 places, 42 transitions, 110 flow [2021-03-24 11:18:32,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2021-03-24 11:18:32,483 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -16 predicate places. [2021-03-24 11:18:32,483 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 110 flow [2021-03-24 11:18:32,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:32,483 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:32,483 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:32,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 11:18:32,484 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:32,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:32,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1408228099, now seen corresponding path program 1 times [2021-03-24 11:18:32,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:32,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140977256] [2021-03-24 11:18:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:32,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:32,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:32,645 INFO L142 QuantifierPusher]: treesize reduction 42, result has 26.3 percent of original size [2021-03-24 11:18:32,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:32,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:32,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:32,672 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:32,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:32,699 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:32,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:32,723 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.6 percent of original size [2021-03-24 11:18:32,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:32,736 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:32,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:32,740 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 11:18:32,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:32,763 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-24 11:18:32,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:32,782 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-03-24 11:18:32,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:32,827 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.5 percent of original size [2021-03-24 11:18:32,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:18:32,870 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.0 percent of original size [2021-03-24 11:18:32,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 11:18:32,908 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:32,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:32,942 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:32,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:32,965 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:32,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:32,967 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:32,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:32,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:32,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:33,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:33,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140977256] [2021-03-24 11:18:33,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:33,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-24 11:18:33,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087161489] [2021-03-24 11:18:33,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-24 11:18:33,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:33,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-24 11:18:33,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-03-24 11:18:33,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 11:18:33,014 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 110 flow. Second operand has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:33,014 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:33,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 11:18:33,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:33,813 INFO L129 PetriNetUnfolder]: 195/466 cut-off events. [2021-03-24 11:18:33,813 INFO L130 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2021-03-24 11:18:33,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 466 events. 195/466 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2247 event pairs, 11 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 1041. Up to 118 conditions per place. [2021-03-24 11:18:33,817 INFO L132 encePairwiseOnDemand]: 266/279 looper letters, 64 selfloop transitions, 15 changer transitions 0/87 dead transitions. [2021-03-24 11:18:33,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 87 transitions, 388 flow [2021-03-24 11:18:33,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:18:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:18:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1128 transitions. [2021-03-24 11:18:33,821 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4043010752688172 [2021-03-24 11:18:33,821 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1128 transitions. [2021-03-24 11:18:33,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1128 transitions. [2021-03-24 11:18:33,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:33,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1128 transitions. [2021-03-24 11:18:33,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 112.8) internal successors, (1128), 10 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:33,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:33,829 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:33,830 INFO L185 Difference]: Start difference. First operand has 48 places, 42 transitions, 110 flow. Second operand 10 states and 1128 transitions. [2021-03-24 11:18:33,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 87 transitions, 388 flow [2021-03-24 11:18:33,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 87 transitions, 387 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 11:18:33,832 INFO L241 Difference]: Finished difference. Result has 59 places, 51 transitions, 190 flow [2021-03-24 11:18:33,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=190, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2021-03-24 11:18:33,833 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2021-03-24 11:18:33,833 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 190 flow [2021-03-24 11:18:33,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:33,834 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:33,834 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:33,834 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 11:18:33,835 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:33,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:33,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1165391075, now seen corresponding path program 2 times [2021-03-24 11:18:33,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:33,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256775833] [2021-03-24 11:18:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:34,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:34,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:34,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:34,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:34,043 INFO L142 QuantifierPusher]: treesize reduction 42, result has 26.3 percent of original size [2021-03-24 11:18:34,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:34,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:34,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:34,065 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:34,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:34,083 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:18:34,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:34,124 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.4 percent of original size [2021-03-24 11:18:34,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:34,165 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.1 percent of original size [2021-03-24 11:18:34,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:18:34,181 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.9 percent of original size [2021-03-24 11:18:34,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:34,195 INFO L142 QuantifierPusher]: treesize reduction 12, result has 71.4 percent of original size [2021-03-24 11:18:34,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:34,227 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-03-24 11:18:34,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:34,230 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-03-24 11:18:34,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:34,263 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.5 percent of original size [2021-03-24 11:18:34,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:18:34,298 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.0 percent of original size [2021-03-24 11:18:34,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 11:18:34,330 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:34,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:34,361 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:34,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:34,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:34,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:34,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:34,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:34,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256775833] [2021-03-24 11:18:34,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:34,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-24 11:18:34,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070594513] [2021-03-24 11:18:34,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-24 11:18:34,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:34,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-24 11:18:34,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-03-24 11:18:34,419 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 11:18:34,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 190 flow. Second operand has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:34,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:34,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 11:18:34,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:35,339 INFO L129 PetriNetUnfolder]: 336/860 cut-off events. [2021-03-24 11:18:35,340 INFO L130 PetriNetUnfolder]: For 598/602 co-relation queries the response was YES. [2021-03-24 11:18:35,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 860 events. 336/860 cut-off events. For 598/602 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5410 event pairs, 33 based on Foata normal form. 1/859 useless extension candidates. Maximal degree in co-relation 2315. Up to 205 conditions per place. [2021-03-24 11:18:35,344 INFO L132 encePairwiseOnDemand]: 265/279 looper letters, 97 selfloop transitions, 28 changer transitions 0/133 dead transitions. [2021-03-24 11:18:35,345 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 133 transitions, 784 flow [2021-03-24 11:18:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 11:18:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 11:18:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1361 transitions. [2021-03-24 11:18:35,349 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40651135005973715 [2021-03-24 11:18:35,349 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1361 transitions. [2021-03-24 11:18:35,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1361 transitions. [2021-03-24 11:18:35,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:35,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1361 transitions. [2021-03-24 11:18:35,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 113.41666666666667) internal successors, (1361), 12 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 279.0) internal successors, (3627), 13 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,356 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 279.0) internal successors, (3627), 13 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,356 INFO L185 Difference]: Start difference. First operand has 59 places, 51 transitions, 190 flow. Second operand 12 states and 1361 transitions. [2021-03-24 11:18:35,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 133 transitions, 784 flow [2021-03-24 11:18:35,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 133 transitions, 769 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 11:18:35,363 INFO L241 Difference]: Finished difference. Result has 71 places, 70 transitions, 377 flow [2021-03-24 11:18:35,363 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=377, PETRI_PLACES=71, PETRI_TRANSITIONS=70} [2021-03-24 11:18:35,363 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 7 predicate places. [2021-03-24 11:18:35,363 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 70 transitions, 377 flow [2021-03-24 11:18:35,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,365 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:35,365 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:35,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 11:18:35,365 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:35,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:35,366 INFO L82 PathProgramCache]: Analyzing trace with hash -737221041, now seen corresponding path program 1 times [2021-03-24 11:18:35,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:35,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767851396] [2021-03-24 11:18:35,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:35,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:35,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:35,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:35,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 11:18:35,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:35,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:35,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:35,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767851396] [2021-03-24 11:18:35,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:35,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 11:18:35,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929572608] [2021-03-24 11:18:35,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:18:35,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:35,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:18:35,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:18:35,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 279 [2021-03-24 11:18:35,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 70 transitions, 377 flow. Second operand has 6 states, 6 states have (on average 187.16666666666666) internal successors, (1123), 6 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:35,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 279 [2021-03-24 11:18:35,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:35,655 INFO L129 PetriNetUnfolder]: 217/670 cut-off events. [2021-03-24 11:18:35,655 INFO L130 PetriNetUnfolder]: For 1204/1220 co-relation queries the response was YES. [2021-03-24 11:18:35,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 670 events. 217/670 cut-off events. For 1204/1220 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4430 event pairs, 137 based on Foata normal form. 24/687 useless extension candidates. Maximal degree in co-relation 2133. Up to 426 conditions per place. [2021-03-24 11:18:35,660 INFO L132 encePairwiseOnDemand]: 272/279 looper letters, 54 selfloop transitions, 17 changer transitions 0/92 dead transitions. [2021-03-24 11:18:35,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 92 transitions, 677 flow [2021-03-24 11:18:35,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:18:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:18:35,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1327 transitions. [2021-03-24 11:18:35,663 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6794674859190988 [2021-03-24 11:18:35,663 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1327 transitions. [2021-03-24 11:18:35,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1327 transitions. [2021-03-24 11:18:35,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:35,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1327 transitions. [2021-03-24 11:18:35,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 189.57142857142858) internal successors, (1327), 7 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,669 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 279.0) internal successors, (2232), 8 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,669 INFO L185 Difference]: Start difference. First operand has 71 places, 70 transitions, 377 flow. Second operand 7 states and 1327 transitions. [2021-03-24 11:18:35,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 92 transitions, 677 flow [2021-03-24 11:18:35,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 92 transitions, 654 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:35,674 INFO L241 Difference]: Finished difference. Result has 78 places, 82 transitions, 531 flow [2021-03-24 11:18:35,674 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=531, PETRI_PLACES=78, PETRI_TRANSITIONS=82} [2021-03-24 11:18:35,674 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 14 predicate places. [2021-03-24 11:18:35,674 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 531 flow [2021-03-24 11:18:35,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 187.16666666666666) internal successors, (1123), 6 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,675 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:35,675 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:35,675 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 11:18:35,675 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:35,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:35,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1104286123, now seen corresponding path program 3 times [2021-03-24 11:18:35,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:35,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929170888] [2021-03-24 11:18:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:35,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:35,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:35,836 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 11:18:35,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:35,846 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:35,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:35,857 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-03-24 11:18:35,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:35,868 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-03-24 11:18:35,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:35,883 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:35,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:35,898 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 11:18:35,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:35,907 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:35,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:35,909 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:35,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:35,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:35,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:35,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:35,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:35,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929170888] [2021-03-24 11:18:35,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:35,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-24 11:18:35,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148424359] [2021-03-24 11:18:35,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 11:18:35,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:35,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 11:18:35,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-24 11:18:35,947 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 279 [2021-03-24 11:18:35,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 82 transitions, 531 flow. Second operand has 11 states, 11 states have (on average 116.54545454545455) internal successors, (1282), 11 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:35,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:35,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 279 [2021-03-24 11:18:35,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:36,448 INFO L129 PetriNetUnfolder]: 308/927 cut-off events. [2021-03-24 11:18:36,448 INFO L130 PetriNetUnfolder]: For 2222/2250 co-relation queries the response was YES. [2021-03-24 11:18:36,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 927 events. 308/927 cut-off events. For 2222/2250 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6399 event pairs, 48 based on Foata normal form. 16/941 useless extension candidates. Maximal degree in co-relation 3233. Up to 277 conditions per place. [2021-03-24 11:18:36,454 INFO L132 encePairwiseOnDemand]: 267/279 looper letters, 98 selfloop transitions, 38 changer transitions 0/146 dead transitions. [2021-03-24 11:18:36,455 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 146 transitions, 1232 flow [2021-03-24 11:18:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:18:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:18:36,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1217 transitions. [2021-03-24 11:18:36,459 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43620071684587813 [2021-03-24 11:18:36,459 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1217 transitions. [2021-03-24 11:18:36,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1217 transitions. [2021-03-24 11:18:36,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:36,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1217 transitions. [2021-03-24 11:18:36,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.7) internal successors, (1217), 10 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:36,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:36,466 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:36,466 INFO L185 Difference]: Start difference. First operand has 78 places, 82 transitions, 531 flow. Second operand 10 states and 1217 transitions. [2021-03-24 11:18:36,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 146 transitions, 1232 flow [2021-03-24 11:18:36,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 146 transitions, 1185 flow, removed 23 selfloop flow, removed 1 redundant places. [2021-03-24 11:18:36,474 INFO L241 Difference]: Finished difference. Result has 90 places, 98 transitions, 781 flow [2021-03-24 11:18:36,474 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=781, PETRI_PLACES=90, PETRI_TRANSITIONS=98} [2021-03-24 11:18:36,474 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 26 predicate places. [2021-03-24 11:18:36,474 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 98 transitions, 781 flow [2021-03-24 11:18:36,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 116.54545454545455) internal successors, (1282), 11 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:36,475 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:36,475 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:36,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 11:18:36,475 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:36,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:36,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1039333131, now seen corresponding path program 4 times [2021-03-24 11:18:36,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:36,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993040702] [2021-03-24 11:18:36,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:36,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:36,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:36,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:36,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:36,615 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 11:18:36,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:36,624 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:36,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:36,637 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.0 percent of original size [2021-03-24 11:18:36,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:36,664 INFO L142 QuantifierPusher]: treesize reduction 19, result has 58.7 percent of original size [2021-03-24 11:18:36,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:36,690 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 11:18:36,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:36,719 INFO L142 QuantifierPusher]: treesize reduction 19, result has 65.5 percent of original size [2021-03-24 11:18:36,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:36,740 INFO L142 QuantifierPusher]: treesize reduction 19, result has 65.5 percent of original size [2021-03-24 11:18:36,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:36,771 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:36,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:36,790 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 11:18:36,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:36,800 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:36,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:36,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:36,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:36,815 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:36,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:36,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:36,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:36,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993040702] [2021-03-24 11:18:36,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:36,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 11:18:36,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6629504] [2021-03-24 11:18:36,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:18:36,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:36,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:18:36,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:18:36,842 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 11:18:36,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 98 transitions, 781 flow. Second operand has 13 states, 13 states have (on average 107.3076923076923) internal successors, (1395), 13 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:36,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:36,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 11:18:36,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:37,651 INFO L129 PetriNetUnfolder]: 620/1646 cut-off events. [2021-03-24 11:18:37,651 INFO L130 PetriNetUnfolder]: For 5850/5973 co-relation queries the response was YES. [2021-03-24 11:18:37,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6309 conditions, 1646 events. 620/1646 cut-off events. For 5850/5973 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 12568 event pairs, 220 based on Foata normal form. 21/1660 useless extension candidates. Maximal degree in co-relation 6286. Up to 735 conditions per place. [2021-03-24 11:18:37,663 INFO L132 encePairwiseOnDemand]: 267/279 looper letters, 125 selfloop transitions, 47 changer transitions 0/180 dead transitions. [2021-03-24 11:18:37,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 180 transitions, 1796 flow [2021-03-24 11:18:37,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 11:18:37,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 11:18:37,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1130 transitions. [2021-03-24 11:18:37,670 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4050179211469534 [2021-03-24 11:18:37,671 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1130 transitions. [2021-03-24 11:18:37,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1130 transitions. [2021-03-24 11:18:37,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:37,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1130 transitions. [2021-03-24 11:18:37,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 113.0) internal successors, (1130), 10 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:37,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:37,677 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 279.0) internal successors, (3069), 11 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:37,677 INFO L185 Difference]: Start difference. First operand has 90 places, 98 transitions, 781 flow. Second operand 10 states and 1130 transitions. [2021-03-24 11:18:37,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 180 transitions, 1796 flow [2021-03-24 11:18:37,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 180 transitions, 1763 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-24 11:18:37,703 INFO L241 Difference]: Finished difference. Result has 99 places, 127 transitions, 1277 flow [2021-03-24 11:18:37,703 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1277, PETRI_PLACES=99, PETRI_TRANSITIONS=127} [2021-03-24 11:18:37,704 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 35 predicate places. [2021-03-24 11:18:37,704 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 127 transitions, 1277 flow [2021-03-24 11:18:37,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 107.3076923076923) internal successors, (1395), 13 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:37,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:37,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:37,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 11:18:37,705 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:37,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:37,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2032479249, now seen corresponding path program 5 times [2021-03-24 11:18:37,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:37,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288099421] [2021-03-24 11:18:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:37,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:37,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:37,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:37,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:37,847 INFO L142 QuantifierPusher]: treesize reduction 30, result has 33.3 percent of original size [2021-03-24 11:18:37,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:37,856 INFO L142 QuantifierPusher]: treesize reduction 13, result has 56.7 percent of original size [2021-03-24 11:18:37,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:37,870 INFO L142 QuantifierPusher]: treesize reduction 19, result has 57.8 percent of original size [2021-03-24 11:18:37,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:37,893 INFO L142 QuantifierPusher]: treesize reduction 21, result has 56.3 percent of original size [2021-03-24 11:18:37,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:37,919 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 11:18:37,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:37,954 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.2 percent of original size [2021-03-24 11:18:37,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:37,965 INFO L142 QuantifierPusher]: treesize reduction 24, result has 50.0 percent of original size [2021-03-24 11:18:37,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:37,986 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:18:37,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:38,005 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 11:18:38,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:38,019 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:38,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:38,020 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:38,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:38,037 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:38,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:38,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:38,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:38,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288099421] [2021-03-24 11:18:38,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:38,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 11:18:38,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924956479] [2021-03-24 11:18:38,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:18:38,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:38,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:18:38,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:18:38,074 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 11:18:38,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 127 transitions, 1277 flow. Second operand has 13 states, 13 states have (on average 107.3076923076923) internal successors, (1395), 13 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:38,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:38,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 11:18:38,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:39,184 INFO L129 PetriNetUnfolder]: 631/1701 cut-off events. [2021-03-24 11:18:39,184 INFO L130 PetriNetUnfolder]: For 7631/7697 co-relation queries the response was YES. [2021-03-24 11:18:39,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6925 conditions, 1701 events. 631/1701 cut-off events. For 7631/7697 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 13161 event pairs, 88 based on Foata normal form. 38/1739 useless extension candidates. Maximal degree in co-relation 6898. Up to 375 conditions per place. [2021-03-24 11:18:39,198 INFO L132 encePairwiseOnDemand]: 266/279 looper letters, 133 selfloop transitions, 74 changer transitions 0/215 dead transitions. [2021-03-24 11:18:39,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 215 transitions, 2321 flow [2021-03-24 11:18:39,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 11:18:39,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 11:18:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1469 transitions. [2021-03-24 11:18:39,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4050179211469534 [2021-03-24 11:18:39,202 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1469 transitions. [2021-03-24 11:18:39,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1469 transitions. [2021-03-24 11:18:39,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:39,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1469 transitions. [2021-03-24 11:18:39,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.0) internal successors, (1469), 13 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:39,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 279.0) internal successors, (3906), 14 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:39,210 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 279.0) internal successors, (3906), 14 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:39,210 INFO L185 Difference]: Start difference. First operand has 99 places, 127 transitions, 1277 flow. Second operand 13 states and 1469 transitions. [2021-03-24 11:18:39,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 215 transitions, 2321 flow [2021-03-24 11:18:39,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 215 transitions, 2290 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-24 11:18:39,234 INFO L241 Difference]: Finished difference. Result has 111 places, 143 transitions, 1660 flow [2021-03-24 11:18:39,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1660, PETRI_PLACES=111, PETRI_TRANSITIONS=143} [2021-03-24 11:18:39,234 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 47 predicate places. [2021-03-24 11:18:39,234 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 143 transitions, 1660 flow [2021-03-24 11:18:39,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 107.3076923076923) internal successors, (1395), 13 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:39,235 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:39,235 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:39,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 11:18:39,235 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:39,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:39,236 INFO L82 PathProgramCache]: Analyzing trace with hash -737716993, now seen corresponding path program 6 times [2021-03-24 11:18:39,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:39,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373122691] [2021-03-24 11:18:39,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:39,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:39,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:39,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:39,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:39,329 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 11:18:39,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:39,339 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:39,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:39,349 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 11:18:39,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:39,365 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-03-24 11:18:39,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:39,381 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:39,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:39,401 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:18:39,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:39,422 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:39,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:39,432 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:39,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:39,452 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 11:18:39,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:39,471 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-24 11:18:39,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:39,489 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:39,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:39,507 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:39,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:39,516 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:39,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:39,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:39,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:39,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:39,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373122691] [2021-03-24 11:18:39,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:39,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 11:18:39,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747316918] [2021-03-24 11:18:39,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 11:18:39,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:39,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 11:18:39,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-24 11:18:39,547 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 11:18:39,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 143 transitions, 1660 flow. Second operand has 14 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:39,549 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:39,549 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 11:18:39,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:40,411 INFO L129 PetriNetUnfolder]: 628/1705 cut-off events. [2021-03-24 11:18:40,411 INFO L130 PetriNetUnfolder]: For 10445/10545 co-relation queries the response was YES. [2021-03-24 11:18:40,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7572 conditions, 1705 events. 628/1705 cut-off events. For 10445/10545 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 13201 event pairs, 288 based on Foata normal form. 27/1725 useless extension candidates. Maximal degree in co-relation 7541. Up to 771 conditions per place. [2021-03-24 11:18:40,428 INFO L132 encePairwiseOnDemand]: 267/279 looper letters, 137 selfloop transitions, 53 changer transitions 0/198 dead transitions. [2021-03-24 11:18:40,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 198 transitions, 2412 flow [2021-03-24 11:18:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 11:18:40,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 11:18:40,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1242 transitions. [2021-03-24 11:18:40,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4046920821114369 [2021-03-24 11:18:40,432 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1242 transitions. [2021-03-24 11:18:40,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1242 transitions. [2021-03-24 11:18:40,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:40,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1242 transitions. [2021-03-24 11:18:40,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 112.9090909090909) internal successors, (1242), 11 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:40,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 279.0) internal successors, (3348), 12 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:40,438 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 279.0) internal successors, (3348), 12 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:40,438 INFO L185 Difference]: Start difference. First operand has 111 places, 143 transitions, 1660 flow. Second operand 11 states and 1242 transitions. [2021-03-24 11:18:40,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 198 transitions, 2412 flow [2021-03-24 11:18:40,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 198 transitions, 2348 flow, removed 23 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:40,468 INFO L241 Difference]: Finished difference. Result has 121 places, 150 transitions, 1851 flow [2021-03-24 11:18:40,468 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1851, PETRI_PLACES=121, PETRI_TRANSITIONS=150} [2021-03-24 11:18:40,468 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 57 predicate places. [2021-03-24 11:18:40,468 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 150 transitions, 1851 flow [2021-03-24 11:18:40,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:40,469 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:40,469 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:40,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 11:18:40,469 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:40,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1548847873, now seen corresponding path program 7 times [2021-03-24 11:18:40,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:40,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123752291] [2021-03-24 11:18:40,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:40,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:40,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:40,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:40,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:40,563 INFO L142 QuantifierPusher]: treesize reduction 42, result has 26.3 percent of original size [2021-03-24 11:18:40,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:40,572 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:40,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:40,583 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-24 11:18:40,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:18:40,595 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 11:18:40,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:40,625 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.4 percent of original size [2021-03-24 11:18:40,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:40,662 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.1 percent of original size [2021-03-24 11:18:40,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:18:40,675 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.9 percent of original size [2021-03-24 11:18:40,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 11:18:40,686 INFO L142 QuantifierPusher]: treesize reduction 12, result has 71.4 percent of original size [2021-03-24 11:18:40,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:40,709 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-03-24 11:18:40,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:40,711 INFO L142 QuantifierPusher]: treesize reduction 14, result has 72.0 percent of original size [2021-03-24 11:18:40,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:40,753 INFO L142 QuantifierPusher]: treesize reduction 14, result has 74.5 percent of original size [2021-03-24 11:18:40,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:18:40,787 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.0 percent of original size [2021-03-24 11:18:40,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 11:18:40,819 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:40,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:40,847 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:40,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:40,866 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:40,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:40,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:40,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:40,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123752291] [2021-03-24 11:18:40,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:40,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-24 11:18:40,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504644729] [2021-03-24 11:18:40,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-24 11:18:40,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:40,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-24 11:18:40,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-03-24 11:18:40,908 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 11:18:40,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 150 transitions, 1851 flow. Second operand has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:40,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:40,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 11:18:40,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:41,918 INFO L129 PetriNetUnfolder]: 656/1826 cut-off events. [2021-03-24 11:18:41,918 INFO L130 PetriNetUnfolder]: For 12591/12633 co-relation queries the response was YES. [2021-03-24 11:18:41,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8247 conditions, 1826 events. 656/1826 cut-off events. For 12591/12633 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 14471 event pairs, 239 based on Foata normal form. 7/1826 useless extension candidates. Maximal degree in co-relation 8213. Up to 837 conditions per place. [2021-03-24 11:18:41,933 INFO L132 encePairwiseOnDemand]: 266/279 looper letters, 162 selfloop transitions, 69 changer transitions 0/239 dead transitions. [2021-03-24 11:18:41,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 239 transitions, 3172 flow [2021-03-24 11:18:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-24 11:18:41,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-24 11:18:41,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1574 transitions. [2021-03-24 11:18:41,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40296979006656425 [2021-03-24 11:18:41,938 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1574 transitions. [2021-03-24 11:18:41,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1574 transitions. [2021-03-24 11:18:41,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:41,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1574 transitions. [2021-03-24 11:18:41,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 112.42857142857143) internal successors, (1574), 14 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:41,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:41,947 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:41,947 INFO L185 Difference]: Start difference. First operand has 121 places, 150 transitions, 1851 flow. Second operand 14 states and 1574 transitions. [2021-03-24 11:18:41,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 239 transitions, 3172 flow [2021-03-24 11:18:41,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 239 transitions, 3102 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-24 11:18:41,993 INFO L241 Difference]: Finished difference. Result has 135 places, 173 transitions, 2330 flow [2021-03-24 11:18:41,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=1802, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2330, PETRI_PLACES=135, PETRI_TRANSITIONS=173} [2021-03-24 11:18:41,993 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 71 predicate places. [2021-03-24 11:18:41,993 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 173 transitions, 2330 flow [2021-03-24 11:18:41,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 106.875) internal successors, (1710), 16 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:41,994 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:41,994 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:41,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 11:18:41,994 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:41,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:41,994 INFO L82 PathProgramCache]: Analyzing trace with hash -463986427, now seen corresponding path program 8 times [2021-03-24 11:18:41,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:41,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377820713] [2021-03-24 11:18:41,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:42,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:42,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:42,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:42,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:42,081 INFO L142 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size [2021-03-24 11:18:42,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:42,099 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:42,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:42,110 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:42,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:42,125 INFO L142 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size [2021-03-24 11:18:42,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:42,143 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-24 11:18:42,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:42,161 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:18:42,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:42,187 INFO L142 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size [2021-03-24 11:18:42,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:42,201 INFO L142 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size [2021-03-24 11:18:42,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:42,215 INFO L142 QuantifierPusher]: treesize reduction 11, result has 71.1 percent of original size [2021-03-24 11:18:42,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:42,235 INFO L142 QuantifierPusher]: treesize reduction 11, result has 64.5 percent of original size [2021-03-24 11:18:42,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:42,254 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:42,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:42,272 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:42,273 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:42,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:42,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:42,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:42,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377820713] [2021-03-24 11:18:42,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:42,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 11:18:42,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363339187] [2021-03-24 11:18:42,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 11:18:42,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:42,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 11:18:42,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-03-24 11:18:42,308 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 279 [2021-03-24 11:18:42,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 173 transitions, 2330 flow. Second operand has 14 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:42,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:42,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 279 [2021-03-24 11:18:42,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:43,366 INFO L129 PetriNetUnfolder]: 656/1817 cut-off events. [2021-03-24 11:18:43,367 INFO L130 PetriNetUnfolder]: For 15047/15155 co-relation queries the response was YES. [2021-03-24 11:18:43,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8666 conditions, 1817 events. 656/1817 cut-off events. For 15047/15155 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 14419 event pairs, 111 based on Foata normal form. 60/1876 useless extension candidates. Maximal degree in co-relation 8626. Up to 446 conditions per place. [2021-03-24 11:18:43,384 INFO L132 encePairwiseOnDemand]: 266/279 looper letters, 153 selfloop transitions, 92 changer transitions 0/253 dead transitions. [2021-03-24 11:18:43,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 253 transitions, 3405 flow [2021-03-24 11:18:43,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-24 11:18:43,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-24 11:18:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1581 transitions. [2021-03-24 11:18:43,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40476190476190477 [2021-03-24 11:18:43,387 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1581 transitions. [2021-03-24 11:18:43,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1581 transitions. [2021-03-24 11:18:43,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:43,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1581 transitions. [2021-03-24 11:18:43,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 112.92857142857143) internal successors, (1581), 14 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:43,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:43,396 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 279.0) internal successors, (4185), 15 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:43,396 INFO L185 Difference]: Start difference. First operand has 135 places, 173 transitions, 2330 flow. Second operand 14 states and 1581 transitions. [2021-03-24 11:18:43,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 253 transitions, 3405 flow [2021-03-24 11:18:43,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 253 transitions, 3357 flow, removed 20 selfloop flow, removed 4 redundant places. [2021-03-24 11:18:43,447 INFO L241 Difference]: Finished difference. Result has 146 places, 181 transitions, 2631 flow [2021-03-24 11:18:43,448 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2286, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2631, PETRI_PLACES=146, PETRI_TRANSITIONS=181} [2021-03-24 11:18:43,448 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 82 predicate places. [2021-03-24 11:18:43,448 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 181 transitions, 2631 flow [2021-03-24 11:18:43,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 107.14285714285714) internal successors, (1500), 14 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:43,448 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:43,449 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:43,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 11:18:43,449 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:43,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:43,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1661190171, now seen corresponding path program 9 times [2021-03-24 11:18:43,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:43,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212117167] [2021-03-24 11:18:43,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:43,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:43,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:43,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:43,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:43,535 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 11:18:43,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:43,545 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:43,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:43,555 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 11:18:43,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:43,571 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-24 11:18:43,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:43,585 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:43,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:43,620 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:43,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:43,640 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:43,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:43,650 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 11:18:43,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:43,672 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:43,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:43,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:43,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:43,695 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:43,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:43,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:43,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:43,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:43,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:43,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212117167] [2021-03-24 11:18:43,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:43,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 11:18:43,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96664577] [2021-03-24 11:18:43,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:18:43,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:43,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:18:43,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:18:43,721 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 279 [2021-03-24 11:18:43,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 181 transitions, 2631 flow. Second operand has 13 states, 13 states have (on average 106.3076923076923) internal successors, (1382), 13 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:43,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:43,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 279 [2021-03-24 11:18:43,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:44,410 INFO L129 PetriNetUnfolder]: 656/1829 cut-off events. [2021-03-24 11:18:44,410 INFO L130 PetriNetUnfolder]: For 17650/17706 co-relation queries the response was YES. [2021-03-24 11:18:44,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9012 conditions, 1829 events. 656/1829 cut-off events. For 17650/17706 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 14550 event pairs, 268 based on Foata normal form. 11/1836 useless extension candidates. Maximal degree in co-relation 8971. Up to 712 conditions per place. [2021-03-24 11:18:44,426 INFO L132 encePairwiseOnDemand]: 269/279 looper letters, 157 selfloop transitions, 56 changer transitions 0/221 dead transitions. [2021-03-24 11:18:44,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 221 transitions, 3349 flow [2021-03-24 11:18:44,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 11:18:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 11:18:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1219 transitions. [2021-03-24 11:18:44,428 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3971977842945585 [2021-03-24 11:18:44,428 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1219 transitions. [2021-03-24 11:18:44,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1219 transitions. [2021-03-24 11:18:44,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:44,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1219 transitions. [2021-03-24 11:18:44,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 110.81818181818181) internal successors, (1219), 11 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:44,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 279.0) internal successors, (3348), 12 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:44,433 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 279.0) internal successors, (3348), 12 states have internal predecessors, (3348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:44,434 INFO L185 Difference]: Start difference. First operand has 146 places, 181 transitions, 2631 flow. Second operand 11 states and 1219 transitions. [2021-03-24 11:18:44,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 221 transitions, 3349 flow [2021-03-24 11:18:44,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 221 transitions, 3284 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-24 11:18:44,494 INFO L241 Difference]: Finished difference. Result has 150 places, 182 transitions, 2706 flow [2021-03-24 11:18:44,494 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2550, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2706, PETRI_PLACES=150, PETRI_TRANSITIONS=182} [2021-03-24 11:18:44,495 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 86 predicate places. [2021-03-24 11:18:44,495 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 182 transitions, 2706 flow [2021-03-24 11:18:44,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 106.3076923076923) internal successors, (1382), 13 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:44,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:44,495 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:44,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 11:18:44,495 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:44,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:44,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1769163559, now seen corresponding path program 1 times [2021-03-24 11:18:44,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:44,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458593114] [2021-03-24 11:18:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:44,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:44,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:44,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:44,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:44,610 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:44,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:44,631 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:18:44,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:44,659 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:18:44,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:18:44,696 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:18:44,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:18:44,738 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:18:44,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:18:44,741 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:44,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:44,757 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:44,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:44,773 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:18:44,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:44,796 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:18:44,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:44,808 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:18:44,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:44,830 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:18:44,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:44,854 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:44,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:44,876 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:18:44,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:44,899 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:44,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:44,915 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:18:44,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:44,938 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:44,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:44,965 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:18:44,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:44,985 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:44,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:45,007 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:45,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:45,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:45,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:45,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458593114] [2021-03-24 11:18:45,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:45,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:18:45,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440802745] [2021-03-24 11:18:45,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-24 11:18:45,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:45,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-24 11:18:45,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-03-24 11:18:45,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 279 [2021-03-24 11:18:45,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 182 transitions, 2706 flow. Second operand has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:45,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 279 [2021-03-24 11:18:45,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:46,674 INFO L129 PetriNetUnfolder]: 866/2344 cut-off events. [2021-03-24 11:18:46,674 INFO L130 PetriNetUnfolder]: For 24192/24337 co-relation queries the response was YES. [2021-03-24 11:18:46,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11848 conditions, 2344 events. 866/2344 cut-off events. For 24192/24337 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 20026 event pairs, 308 based on Foata normal form. 31/2370 useless extension candidates. Maximal degree in co-relation 11806. Up to 1426 conditions per place. [2021-03-24 11:18:46,699 INFO L132 encePairwiseOnDemand]: 262/279 looper letters, 186 selfloop transitions, 118 changer transitions 9/319 dead transitions. [2021-03-24 11:18:46,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 319 transitions, 5466 flow [2021-03-24 11:18:46,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 11:18:46,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 11:18:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1523 transitions. [2021-03-24 11:18:46,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3211047860004217 [2021-03-24 11:18:46,702 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1523 transitions. [2021-03-24 11:18:46,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1523 transitions. [2021-03-24 11:18:46,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:46,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1523 transitions. [2021-03-24 11:18:46,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 89.58823529411765) internal successors, (1523), 17 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,711 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,711 INFO L185 Difference]: Start difference. First operand has 150 places, 182 transitions, 2706 flow. Second operand 17 states and 1523 transitions. [2021-03-24 11:18:46,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 319 transitions, 5466 flow [2021-03-24 11:18:46,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 319 transitions, 5433 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-24 11:18:46,774 INFO L241 Difference]: Finished difference. Result has 170 places, 256 transitions, 4366 flow [2021-03-24 11:18:46,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2681, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4366, PETRI_PLACES=170, PETRI_TRANSITIONS=256} [2021-03-24 11:18:46,774 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 106 predicate places. [2021-03-24 11:18:46,774 INFO L480 AbstractCegarLoop]: Abstraction has has 170 places, 256 transitions, 4366 flow [2021-03-24 11:18:46,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,775 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:46,775 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:46,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 11:18:46,775 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:46,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:46,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1766511081, now seen corresponding path program 2 times [2021-03-24 11:18:46,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:46,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440320727] [2021-03-24 11:18:46,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:46,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:46,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:46,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:46,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:18:46,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:18:46,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:46,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:18:46,915 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.0 percent of original size [2021-03-24 11:18:46,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:18:46,948 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:46,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:46,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:46,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440320727] [2021-03-24 11:18:46,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:46,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 11:18:46,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053124103] [2021-03-24 11:18:46,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 11:18:46,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:46,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 11:18:46,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-24 11:18:46,952 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 279 [2021-03-24 11:18:46,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 256 transitions, 4366 flow. Second operand has 8 states, 8 states have (on average 149.5) internal successors, (1196), 8 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:46,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 279 [2021-03-24 11:18:46,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:47,174 INFO L129 PetriNetUnfolder]: 172/896 cut-off events. [2021-03-24 11:18:47,174 INFO L130 PetriNetUnfolder]: For 8689/8758 co-relation queries the response was YES. [2021-03-24 11:18:47,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4564 conditions, 896 events. 172/896 cut-off events. For 8689/8758 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7737 event pairs, 7 based on Foata normal form. 36/921 useless extension candidates. Maximal degree in co-relation 4514. Up to 274 conditions per place. [2021-03-24 11:18:47,181 INFO L132 encePairwiseOnDemand]: 269/279 looper letters, 66 selfloop transitions, 17 changer transitions 0/208 dead transitions. [2021-03-24 11:18:47,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 208 transitions, 3378 flow [2021-03-24 11:18:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 11:18:47,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 11:18:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1202 transitions. [2021-03-24 11:18:47,184 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5385304659498208 [2021-03-24 11:18:47,184 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1202 transitions. [2021-03-24 11:18:47,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1202 transitions. [2021-03-24 11:18:47,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:47,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1202 transitions. [2021-03-24 11:18:47,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 279.0) internal successors, (2511), 9 states have internal predecessors, (2511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,188 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 279.0) internal successors, (2511), 9 states have internal predecessors, (2511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,188 INFO L185 Difference]: Start difference. First operand has 170 places, 256 transitions, 4366 flow. Second operand 8 states and 1202 transitions. [2021-03-24 11:18:47,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 208 transitions, 3378 flow [2021-03-24 11:18:47,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 208 transitions, 3043 flow, removed 74 selfloop flow, removed 17 redundant places. [2021-03-24 11:18:47,229 INFO L241 Difference]: Finished difference. Result has 158 places, 195 transitions, 2773 flow [2021-03-24 11:18:47,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2710, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2773, PETRI_PLACES=158, PETRI_TRANSITIONS=195} [2021-03-24 11:18:47,229 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 94 predicate places. [2021-03-24 11:18:47,229 INFO L480 AbstractCegarLoop]: Abstraction has has 158 places, 195 transitions, 2773 flow [2021-03-24 11:18:47,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 149.5) internal successors, (1196), 8 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,230 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:47,230 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:47,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 11:18:47,230 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:47,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:47,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1417364809, now seen corresponding path program 3 times [2021-03-24 11:18:47,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:47,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805886018] [2021-03-24 11:18:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:47,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:47,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:47,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:47,350 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:47,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:47,372 INFO L142 QuantifierPusher]: treesize reduction 24, result has 52.9 percent of original size [2021-03-24 11:18:47,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:47,395 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.3 percent of original size [2021-03-24 11:18:47,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:47,431 INFO L142 QuantifierPusher]: treesize reduction 20, result has 68.3 percent of original size [2021-03-24 11:18:47,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:47,474 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-24 11:18:47,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:18:47,512 INFO L142 QuantifierPusher]: treesize reduction 11, result has 76.1 percent of original size [2021-03-24 11:18:47,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:47,534 INFO L142 QuantifierPusher]: treesize reduction 26, result has 63.9 percent of original size [2021-03-24 11:18:47,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:18:47,576 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 11:18:47,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:47,611 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.9 percent of original size [2021-03-24 11:18:47,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:18:47,623 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 11:18:47,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:47,651 INFO L142 QuantifierPusher]: treesize reduction 19, result has 71.2 percent of original size [2021-03-24 11:18:47,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:18:47,691 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.9 percent of original size [2021-03-24 11:18:47,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:47,723 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:47,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:47,745 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-24 11:18:47,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:47,768 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:18:47,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:47,789 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:47,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:47,791 INFO L142 QuantifierPusher]: treesize reduction 41, result has 40.6 percent of original size [2021-03-24 11:18:47,791 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size 25 [2021-03-24 11:18:47,831 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:47,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:47,859 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:47,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:47,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:47,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:47,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805886018] [2021-03-24 11:18:47,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:47,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 11:18:47,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357228294] [2021-03-24 11:18:47,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:18:47,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:47,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:18:47,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:18:47,930 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 279 [2021-03-24 11:18:47,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 195 transitions, 2773 flow. Second operand has 20 states, 20 states have (on average 83.65) internal successors, (1673), 20 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:47,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 279 [2021-03-24 11:18:47,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:49,687 INFO L129 PetriNetUnfolder]: 523/1544 cut-off events. [2021-03-24 11:18:49,687 INFO L130 PetriNetUnfolder]: For 13544/13610 co-relation queries the response was YES. [2021-03-24 11:18:49,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8267 conditions, 1544 events. 523/1544 cut-off events. For 13544/13610 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 12354 event pairs, 208 based on Foata normal form. 21/1556 useless extension candidates. Maximal degree in co-relation 8226. Up to 950 conditions per place. [2021-03-24 11:18:49,698 INFO L132 encePairwiseOnDemand]: 260/279 looper letters, 154 selfloop transitions, 84 changer transitions 23/267 dead transitions. [2021-03-24 11:18:49,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 267 transitions, 4093 flow [2021-03-24 11:18:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:18:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:18:49,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1653 transitions. [2021-03-24 11:18:49,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3118279569892473 [2021-03-24 11:18:49,702 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1653 transitions. [2021-03-24 11:18:49,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1653 transitions. [2021-03-24 11:18:49,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:49,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1653 transitions. [2021-03-24 11:18:49,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 87.0) internal successors, (1653), 19 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 279.0) internal successors, (5580), 20 states have internal predecessors, (5580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,709 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 279.0) internal successors, (5580), 20 states have internal predecessors, (5580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,710 INFO L185 Difference]: Start difference. First operand has 158 places, 195 transitions, 2773 flow. Second operand 19 states and 1653 transitions. [2021-03-24 11:18:49,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 267 transitions, 4093 flow [2021-03-24 11:18:49,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 267 transitions, 4016 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-03-24 11:18:49,757 INFO L241 Difference]: Finished difference. Result has 174 places, 205 transitions, 3139 flow [2021-03-24 11:18:49,758 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2717, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3139, PETRI_PLACES=174, PETRI_TRANSITIONS=205} [2021-03-24 11:18:49,758 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 110 predicate places. [2021-03-24 11:18:49,758 INFO L480 AbstractCegarLoop]: Abstraction has has 174 places, 205 transitions, 3139 flow [2021-03-24 11:18:49,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 83.65) internal successors, (1673), 20 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,758 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:49,759 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:49,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 11:18:49,759 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:49,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:49,759 INFO L82 PathProgramCache]: Analyzing trace with hash -597758653, now seen corresponding path program 4 times [2021-03-24 11:18:49,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:49,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326431109] [2021-03-24 11:18:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:49,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:49,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:49,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:49,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:49,891 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:49,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:49,914 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:18:49,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:49,938 INFO L142 QuantifierPusher]: treesize reduction 33, result has 54.8 percent of original size [2021-03-24 11:18:49,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:49,969 INFO L142 QuantifierPusher]: treesize reduction 28, result has 58.2 percent of original size [2021-03-24 11:18:49,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:50,002 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 11:18:50,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:50,010 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:18:50,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:50,028 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 11:18:50,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:50,044 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.6 percent of original size [2021-03-24 11:18:50,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:50,068 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 11:18:50,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:50,080 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.0 percent of original size [2021-03-24 11:18:50,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:18:50,105 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-24 11:18:50,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:50,132 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 11:18:50,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:50,162 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:18:50,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:50,188 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:18:50,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:50,216 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:50,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:50,234 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:50,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:50,252 INFO L142 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size [2021-03-24 11:18:50,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:50,296 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:50,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:50,322 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:50,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:50,346 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:50,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:50,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326431109] [2021-03-24 11:18:50,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:50,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:18:50,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681609280] [2021-03-24 11:18:50,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-24 11:18:50,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:50,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-24 11:18:50,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-03-24 11:18:50,372 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 279 [2021-03-24 11:18:50,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 205 transitions, 3139 flow. Second operand has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:50,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:50,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 279 [2021-03-24 11:18:50,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:51,837 INFO L129 PetriNetUnfolder]: 550/1636 cut-off events. [2021-03-24 11:18:51,837 INFO L130 PetriNetUnfolder]: For 15501/15575 co-relation queries the response was YES. [2021-03-24 11:18:51,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9051 conditions, 1636 events. 550/1636 cut-off events. For 15501/15575 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 13256 event pairs, 281 based on Foata normal form. 21/1644 useless extension candidates. Maximal degree in co-relation 9006. Up to 1199 conditions per place. [2021-03-24 11:18:51,849 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 175 selfloop transitions, 53 changer transitions 27/261 dead transitions. [2021-03-24 11:18:51,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 261 transitions, 4256 flow [2021-03-24 11:18:51,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 11:18:51,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 11:18:51,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1514 transitions. [2021-03-24 11:18:51,852 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3192072527935906 [2021-03-24 11:18:51,852 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1514 transitions. [2021-03-24 11:18:51,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1514 transitions. [2021-03-24 11:18:51,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:51,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1514 transitions. [2021-03-24 11:18:51,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 89.05882352941177) internal successors, (1514), 17 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:51,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:51,858 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:51,859 INFO L185 Difference]: Start difference. First operand has 174 places, 205 transitions, 3139 flow. Second operand 17 states and 1514 transitions. [2021-03-24 11:18:51,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 261 transitions, 4256 flow [2021-03-24 11:18:51,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 261 transitions, 4157 flow, removed 21 selfloop flow, removed 12 redundant places. [2021-03-24 11:18:51,918 INFO L241 Difference]: Finished difference. Result has 180 places, 210 transitions, 3253 flow [2021-03-24 11:18:51,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=3067, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3253, PETRI_PLACES=180, PETRI_TRANSITIONS=210} [2021-03-24 11:18:51,918 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 116 predicate places. [2021-03-24 11:18:51,918 INFO L480 AbstractCegarLoop]: Abstraction has has 180 places, 210 transitions, 3253 flow [2021-03-24 11:18:51,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:51,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:51,919 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:51,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 11:18:51,919 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:51,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:51,919 INFO L82 PathProgramCache]: Analyzing trace with hash 542754479, now seen corresponding path program 5 times [2021-03-24 11:18:51,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:51,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092058153] [2021-03-24 11:18:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:52,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:52,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:52,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:52,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:52,034 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:52,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:52,055 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-24 11:18:52,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:18:52,079 INFO L142 QuantifierPusher]: treesize reduction 24, result has 65.7 percent of original size [2021-03-24 11:18:52,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:18:52,117 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 11:18:52,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:18:52,162 INFO L142 QuantifierPusher]: treesize reduction 24, result has 65.7 percent of original size [2021-03-24 11:18:52,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:18:52,164 INFO L142 QuantifierPusher]: treesize reduction 20, result has 60.8 percent of original size [2021-03-24 11:18:52,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:52,181 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:18:52,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:52,195 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.1 percent of original size [2021-03-24 11:18:52,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:52,213 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 11:18:52,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:52,236 INFO L142 QuantifierPusher]: treesize reduction 32, result has 43.9 percent of original size [2021-03-24 11:18:52,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:52,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 11:18:52,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:52,273 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:18:52,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:52,293 INFO L142 QuantifierPusher]: treesize reduction 22, result has 54.2 percent of original size [2021-03-24 11:18:52,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:52,311 INFO L142 QuantifierPusher]: treesize reduction 22, result has 48.8 percent of original size [2021-03-24 11:18:52,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 11:18:52,324 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:18:52,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:52,342 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:18:52,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:52,343 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:18:52,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:52,361 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:18:52,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:52,381 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:18:52,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:52,398 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:18:52,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:18:52,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:52,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092058153] [2021-03-24 11:18:52,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:52,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:18:52,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776049977] [2021-03-24 11:18:52,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-24 11:18:52,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:52,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-24 11:18:52,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-03-24 11:18:52,415 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 279 [2021-03-24 11:18:52,416 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 210 transitions, 3253 flow. Second operand has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:52,416 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:52,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 279 [2021-03-24 11:18:52,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:53,794 INFO L129 PetriNetUnfolder]: 533/1586 cut-off events. [2021-03-24 11:18:53,794 INFO L130 PetriNetUnfolder]: For 15294/15359 co-relation queries the response was YES. [2021-03-24 11:18:53,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8778 conditions, 1586 events. 533/1586 cut-off events. For 15294/15359 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 12842 event pairs, 230 based on Foata normal form. 35/1611 useless extension candidates. Maximal degree in co-relation 8730. Up to 998 conditions per place. [2021-03-24 11:18:53,806 INFO L132 encePairwiseOnDemand]: 262/279 looper letters, 137 selfloop transitions, 85 changer transitions 24/252 dead transitions. [2021-03-24 11:18:53,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 252 transitions, 4150 flow [2021-03-24 11:18:53,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-24 11:18:53,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-24 11:18:53,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1432 transitions. [2021-03-24 11:18:53,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3207885304659498 [2021-03-24 11:18:53,814 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1432 transitions. [2021-03-24 11:18:53,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1432 transitions. [2021-03-24 11:18:53,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:53,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1432 transitions. [2021-03-24 11:18:53,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 89.5) internal successors, (1432), 16 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 279.0) internal successors, (4743), 17 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,820 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 279.0) internal successors, (4743), 17 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,820 INFO L185 Difference]: Start difference. First operand has 180 places, 210 transitions, 3253 flow. Second operand 16 states and 1432 transitions. [2021-03-24 11:18:53,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 252 transitions, 4150 flow [2021-03-24 11:18:53,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 252 transitions, 4026 flow, removed 29 selfloop flow, removed 10 redundant places. [2021-03-24 11:18:53,874 INFO L241 Difference]: Finished difference. Result has 184 places, 201 transitions, 3192 flow [2021-03-24 11:18:53,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=3144, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3192, PETRI_PLACES=184, PETRI_TRANSITIONS=201} [2021-03-24 11:18:53,875 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 120 predicate places. [2021-03-24 11:18:53,875 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 201 transitions, 3192 flow [2021-03-24 11:18:53,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,875 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:53,875 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:53,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 11:18:53,876 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:53,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:53,876 INFO L82 PathProgramCache]: Analyzing trace with hash 513180487, now seen corresponding path program 6 times [2021-03-24 11:18:53,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:53,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290730000] [2021-03-24 11:18:53,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:53,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:53,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:53,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:53,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:53,975 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:53,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:53,996 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:18:53,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:54,023 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:18:54,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:18:54,058 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:18:54,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:18:54,100 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:18:54,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:18:54,101 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:54,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:54,118 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:54,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:54,136 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:18:54,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:54,161 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:18:54,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:54,174 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:18:54,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:54,197 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:18:54,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:54,219 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:54,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:54,236 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:18:54,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:18:54,253 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:54,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:54,265 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:18:54,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:54,295 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 11:18:54,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:54,319 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:54,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:54,345 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:54,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:54,369 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:54,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:54,370 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:54,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:54,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290730000] [2021-03-24 11:18:54,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:54,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:18:54,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107997941] [2021-03-24 11:18:54,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-24 11:18:54,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:54,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-24 11:18:54,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-03-24 11:18:54,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 279 [2021-03-24 11:18:54,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 201 transitions, 3192 flow. Second operand has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:54,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:54,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 279 [2021-03-24 11:18:54,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:55,891 INFO L129 PetriNetUnfolder]: 510/1493 cut-off events. [2021-03-24 11:18:55,891 INFO L130 PetriNetUnfolder]: For 15368/15437 co-relation queries the response was YES. [2021-03-24 11:18:55,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8488 conditions, 1493 events. 510/1493 cut-off events. For 15368/15437 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11774 event pairs, 218 based on Foata normal form. 34/1518 useless extension candidates. Maximal degree in co-relation 8441. Up to 958 conditions per place. [2021-03-24 11:18:55,905 INFO L132 encePairwiseOnDemand]: 262/279 looper letters, 129 selfloop transitions, 85 changer transitions 18/238 dead transitions. [2021-03-24 11:18:55,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 238 transitions, 3988 flow [2021-03-24 11:18:55,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:55,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1603 transitions. [2021-03-24 11:18:55,908 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3191955396256472 [2021-03-24 11:18:55,908 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1603 transitions. [2021-03-24 11:18:55,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1603 transitions. [2021-03-24 11:18:55,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:55,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1603 transitions. [2021-03-24 11:18:55,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.05555555555556) internal successors, (1603), 18 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:55,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:55,916 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:55,916 INFO L185 Difference]: Start difference. First operand has 184 places, 201 transitions, 3192 flow. Second operand 18 states and 1603 transitions. [2021-03-24 11:18:55,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 238 transitions, 3988 flow [2021-03-24 11:18:55,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 238 transitions, 3800 flow, removed 4 selfloop flow, removed 13 redundant places. [2021-03-24 11:18:55,977 INFO L241 Difference]: Finished difference. Result has 184 places, 193 transitions, 3047 flow [2021-03-24 11:18:55,977 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2994, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3047, PETRI_PLACES=184, PETRI_TRANSITIONS=193} [2021-03-24 11:18:55,977 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 120 predicate places. [2021-03-24 11:18:55,977 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 193 transitions, 3047 flow [2021-03-24 11:18:55,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:55,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:55,978 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:55,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 11:18:55,978 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:55,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:55,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1583076323, now seen corresponding path program 7 times [2021-03-24 11:18:55,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:55,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514350827] [2021-03-24 11:18:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:56,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:56,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:56,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:56,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:56,083 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:56,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:56,105 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 11:18:56,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:56,128 INFO L142 QuantifierPusher]: treesize reduction 33, result has 54.8 percent of original size [2021-03-24 11:18:56,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:56,157 INFO L142 QuantifierPusher]: treesize reduction 28, result has 58.2 percent of original size [2021-03-24 11:18:56,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:56,189 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 11:18:56,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:56,198 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:18:56,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:56,216 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 11:18:56,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:56,234 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.6 percent of original size [2021-03-24 11:18:56,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:56,261 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 11:18:56,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:56,275 INFO L142 QuantifierPusher]: treesize reduction 17, result has 62.2 percent of original size [2021-03-24 11:18:56,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:56,299 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-24 11:18:56,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:56,324 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 11:18:56,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:56,355 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 11:18:56,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:56,382 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:18:56,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:18:56,411 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:56,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:56,430 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:18:56,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:18:56,449 INFO L142 QuantifierPusher]: treesize reduction 32, result has 49.2 percent of original size [2021-03-24 11:18:56,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:56,495 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:56,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:56,522 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:56,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:56,547 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:56,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:56,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:56,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514350827] [2021-03-24 11:18:56,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:56,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:18:56,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002280570] [2021-03-24 11:18:56,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-24 11:18:56,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:56,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-24 11:18:56,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-03-24 11:18:56,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 279 [2021-03-24 11:18:56,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 193 transitions, 3047 flow. Second operand has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:56,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:56,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 279 [2021-03-24 11:18:56,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:58,144 INFO L129 PetriNetUnfolder]: 510/1502 cut-off events. [2021-03-24 11:18:58,144 INFO L130 PetriNetUnfolder]: For 15196/15257 co-relation queries the response was YES. [2021-03-24 11:18:58,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8452 conditions, 1502 events. 510/1502 cut-off events. For 15196/15257 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 11804 event pairs, 248 based on Foata normal form. 22/1511 useless extension candidates. Maximal degree in co-relation 8406. Up to 1064 conditions per place. [2021-03-24 11:18:58,154 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 148 selfloop transitions, 57 changer transitions 35/246 dead transitions. [2021-03-24 11:18:58,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 246 transitions, 4037 flow [2021-03-24 11:18:58,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:18:58,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:18:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1605 transitions. [2021-03-24 11:18:58,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3195937873357228 [2021-03-24 11:18:58,157 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1605 transitions. [2021-03-24 11:18:58,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1605 transitions. [2021-03-24 11:18:58,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:58,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1605 transitions. [2021-03-24 11:18:58,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.16666666666667) internal successors, (1605), 18 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,163 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 279.0) internal successors, (5301), 19 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,163 INFO L185 Difference]: Start difference. First operand has 184 places, 193 transitions, 3047 flow. Second operand 18 states and 1605 transitions. [2021-03-24 11:18:58,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 246 transitions, 4037 flow [2021-03-24 11:18:58,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 246 transitions, 3790 flow, removed 9 selfloop flow, removed 17 redundant places. [2021-03-24 11:18:58,216 INFO L241 Difference]: Finished difference. Result has 183 places, 184 transitions, 2892 flow [2021-03-24 11:18:58,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=2823, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2892, PETRI_PLACES=183, PETRI_TRANSITIONS=184} [2021-03-24 11:18:58,216 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 119 predicate places. [2021-03-24 11:18:58,216 INFO L480 AbstractCegarLoop]: Abstraction has has 183 places, 184 transitions, 2892 flow [2021-03-24 11:18:58,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 85.73684210526316) internal successors, (1629), 19 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,217 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:58,217 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:58,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-24 11:18:58,217 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:58,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:58,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1053511285, now seen corresponding path program 8 times [2021-03-24 11:18:58,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:58,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955261053] [2021-03-24 11:18:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:58,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:58,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 11:18:58,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:58,297 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:58,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:58,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:58,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:58,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955261053] [2021-03-24 11:18:58,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:58,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 11:18:58,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92147755] [2021-03-24 11:18:58,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:18:58,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:58,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:18:58,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:18:58,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 279 [2021-03-24 11:18:58,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 184 transitions, 2892 flow. Second operand has 6 states, 6 states have (on average 205.33333333333334) internal successors, (1232), 6 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:58,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 279 [2021-03-24 11:18:58,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:58,377 INFO L129 PetriNetUnfolder]: 11/153 cut-off events. [2021-03-24 11:18:58,377 INFO L130 PetriNetUnfolder]: For 1785/1794 co-relation queries the response was YES. [2021-03-24 11:18:58,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 153 events. 11/153 cut-off events. For 1785/1794 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 657 event pairs, 1 based on Foata normal form. 15/168 useless extension candidates. Maximal degree in co-relation 742. Up to 32 conditions per place. [2021-03-24 11:18:58,379 INFO L132 encePairwiseOnDemand]: 273/279 looper letters, 19 selfloop transitions, 8 changer transitions 0/84 dead transitions. [2021-03-24 11:18:58,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 84 transitions, 1052 flow [2021-03-24 11:18:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 11:18:58,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 11:18:58,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1233 transitions. [2021-03-24 11:18:58,381 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7365591397849462 [2021-03-24 11:18:58,381 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1233 transitions. [2021-03-24 11:18:58,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1233 transitions. [2021-03-24 11:18:58,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:58,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1233 transitions. [2021-03-24 11:18:58,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,384 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 279.0) internal successors, (1953), 7 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,384 INFO L185 Difference]: Start difference. First operand has 183 places, 184 transitions, 2892 flow. Second operand 6 states and 1233 transitions. [2021-03-24 11:18:58,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 84 transitions, 1052 flow [2021-03-24 11:18:58,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 84 transitions, 769 flow, removed 40 selfloop flow, removed 48 redundant places. [2021-03-24 11:18:58,393 INFO L241 Difference]: Finished difference. Result has 120 places, 84 transitions, 744 flow [2021-03-24 11:18:58,393 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=744, PETRI_PLACES=120, PETRI_TRANSITIONS=84} [2021-03-24 11:18:58,394 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 56 predicate places. [2021-03-24 11:18:58,394 INFO L480 AbstractCegarLoop]: Abstraction has has 120 places, 84 transitions, 744 flow [2021-03-24 11:18:58,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 205.33333333333334) internal successors, (1232), 6 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,394 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:58,394 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:58,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-24 11:18:58,394 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:58,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:58,395 INFO L82 PathProgramCache]: Analyzing trace with hash 171716433, now seen corresponding path program 1 times [2021-03-24 11:18:58,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:58,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233829646] [2021-03-24 11:18:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:58,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:58,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 11:18:58,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 11:18:58,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 11:18:58,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:58,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 11:18:58,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:58,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:58,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:58,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:58,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:58,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:58,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233829646] [2021-03-24 11:18:58,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:58,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-24 11:18:58,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924685623] [2021-03-24 11:18:58,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 11:18:58,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:58,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 11:18:58,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-24 11:18:58,526 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 279 [2021-03-24 11:18:58,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 84 transitions, 744 flow. Second operand has 9 states, 9 states have (on average 143.0) internal successors, (1287), 9 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:58,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 279 [2021-03-24 11:18:58,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:58,903 INFO L129 PetriNetUnfolder]: 34/193 cut-off events. [2021-03-24 11:18:58,903 INFO L130 PetriNetUnfolder]: For 972/977 co-relation queries the response was YES. [2021-03-24 11:18:58,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 861 conditions, 193 events. 34/193 cut-off events. For 972/977 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 789 event pairs, 19 based on Foata normal form. 11/204 useless extension candidates. Maximal degree in co-relation 834. Up to 89 conditions per place. [2021-03-24 11:18:58,904 INFO L132 encePairwiseOnDemand]: 268/279 looper letters, 56 selfloop transitions, 30 changer transitions 0/96 dead transitions. [2021-03-24 11:18:58,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 96 transitions, 989 flow [2021-03-24 11:18:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 11:18:58,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 11:18:58,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1736 transitions. [2021-03-24 11:18:58,915 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2021-03-24 11:18:58,915 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1736 transitions. [2021-03-24 11:18:58,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1736 transitions. [2021-03-24 11:18:58,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:58,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1736 transitions. [2021-03-24 11:18:58,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 144.66666666666666) internal successors, (1736), 12 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 279.0) internal successors, (3627), 13 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,926 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 279.0) internal successors, (3627), 13 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,926 INFO L185 Difference]: Start difference. First operand has 120 places, 84 transitions, 744 flow. Second operand 12 states and 1736 transitions. [2021-03-24 11:18:58,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 96 transitions, 989 flow [2021-03-24 11:18:58,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 96 transitions, 965 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-24 11:18:58,933 INFO L241 Difference]: Finished difference. Result has 128 places, 84 transitions, 818 flow [2021-03-24 11:18:58,933 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=818, PETRI_PLACES=128, PETRI_TRANSITIONS=84} [2021-03-24 11:18:58,934 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 64 predicate places. [2021-03-24 11:18:58,934 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 84 transitions, 818 flow [2021-03-24 11:18:58,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 143.0) internal successors, (1287), 9 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,934 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:58,934 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:58,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-24 11:18:58,934 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:58,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:58,935 INFO L82 PathProgramCache]: Analyzing trace with hash 392478049, now seen corresponding path program 9 times [2021-03-24 11:18:58,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:58,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495813331] [2021-03-24 11:18:58,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:59,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:59,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:59,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:59,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:59,066 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:18:59,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:59,088 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:18:59,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:59,116 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:18:59,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:18:59,152 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:18:59,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:59,168 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:59,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:59,186 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:18:59,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:59,210 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:18:59,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:59,223 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:18:59,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:59,246 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:18:59,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:18:59,272 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:59,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:59,294 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 11:18:59,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:59,317 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:18:59,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:59,341 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:59,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:59,358 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 11:18:59,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:59,381 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:59,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:59,406 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:59,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:59,424 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:59,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:59,425 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:59,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:59,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495813331] [2021-03-24 11:18:59,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:59,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 11:18:59,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953744398] [2021-03-24 11:18:59,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:18:59,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:59,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:18:59,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:18:59,445 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 11:18:59,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 84 transitions, 818 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:59,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:59,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 11:18:59,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:00,419 INFO L129 PetriNetUnfolder]: 29/198 cut-off events. [2021-03-24 11:19:00,420 INFO L130 PetriNetUnfolder]: For 1281/1292 co-relation queries the response was YES. [2021-03-24 11:19:00,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 198 events. 29/198 cut-off events. For 1281/1292 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 879 event pairs, 10 based on Foata normal form. 3/201 useless extension candidates. Maximal degree in co-relation 889. Up to 87 conditions per place. [2021-03-24 11:19:00,420 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 59 selfloop transitions, 21 changer transitions 11/102 dead transitions. [2021-03-24 11:19:00,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 102 transitions, 1163 flow [2021-03-24 11:19:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:19:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:19:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2067 transitions. [2021-03-24 11:19:00,422 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4939068100358423 [2021-03-24 11:19:00,423 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2067 transitions. [2021-03-24 11:19:00,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2067 transitions. [2021-03-24 11:19:00,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:00,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2067 transitions. [2021-03-24 11:19:00,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 137.8) internal successors, (2067), 15 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:00,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:00,428 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:00,428 INFO L185 Difference]: Start difference. First operand has 128 places, 84 transitions, 818 flow. Second operand 15 states and 2067 transitions. [2021-03-24 11:19:00,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 102 transitions, 1163 flow [2021-03-24 11:19:00,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 102 transitions, 1096 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-24 11:19:00,435 INFO L241 Difference]: Finished difference. Result has 141 places, 86 transitions, 835 flow [2021-03-24 11:19:00,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=835, PETRI_PLACES=141, PETRI_TRANSITIONS=86} [2021-03-24 11:19:00,435 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 77 predicate places. [2021-03-24 11:19:00,435 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 86 transitions, 835 flow [2021-03-24 11:19:00,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:00,436 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:00,436 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:00,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-24 11:19:00,436 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:00,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:00,436 INFO L82 PathProgramCache]: Analyzing trace with hash 79561405, now seen corresponding path program 10 times [2021-03-24 11:19:00,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:00,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968227652] [2021-03-24 11:19:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:00,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:00,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:00,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:00,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:00,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:00,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:00,549 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:19:00,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:00,576 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:00,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:00,608 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:00,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:00,621 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:00,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:00,648 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:19:00,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:19:00,674 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:00,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:00,685 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-24 11:19:00,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:19:00,708 INFO L142 QuantifierPusher]: treesize reduction 24, result has 52.9 percent of original size [2021-03-24 11:19:00,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:00,733 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-24 11:19:00,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:19:00,759 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 11:19:00,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:00,791 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:19:00,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:00,810 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:00,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:00,822 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 11:19:00,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:00,842 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:00,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:00,864 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:00,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:00,882 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:00,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:00,882 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:00,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:00,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968227652] [2021-03-24 11:19:00,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:00,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 11:19:00,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715748508] [2021-03-24 11:19:00,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:19:00,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:00,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:19:00,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:19:00,901 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 11:19:00,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 86 transitions, 835 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:00,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:00,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 11:19:00,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:01,883 INFO L129 PetriNetUnfolder]: 27/195 cut-off events. [2021-03-24 11:19:01,883 INFO L130 PetriNetUnfolder]: For 1220/1228 co-relation queries the response was YES. [2021-03-24 11:19:01,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 195 events. 27/195 cut-off events. For 1220/1228 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 884 event pairs, 16 based on Foata normal form. 4/198 useless extension candidates. Maximal degree in co-relation 905. Up to 109 conditions per place. [2021-03-24 11:19:01,884 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 54 selfloop transitions, 15 changer transitions 19/99 dead transitions. [2021-03-24 11:19:01,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 99 transitions, 1140 flow [2021-03-24 11:19:01,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:19:01,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:19:01,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2061 transitions. [2021-03-24 11:19:01,886 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4924731182795699 [2021-03-24 11:19:01,886 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2061 transitions. [2021-03-24 11:19:01,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2061 transitions. [2021-03-24 11:19:01,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:01,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2061 transitions. [2021-03-24 11:19:01,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 137.4) internal successors, (2061), 15 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:01,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:01,891 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:01,891 INFO L185 Difference]: Start difference. First operand has 141 places, 86 transitions, 835 flow. Second operand 15 states and 2061 transitions. [2021-03-24 11:19:01,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 99 transitions, 1140 flow [2021-03-24 11:19:01,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 99 transitions, 1070 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-03-24 11:19:01,898 INFO L241 Difference]: Finished difference. Result has 145 places, 80 transitions, 742 flow [2021-03-24 11:19:01,898 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=742, PETRI_PLACES=145, PETRI_TRANSITIONS=80} [2021-03-24 11:19:01,899 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 81 predicate places. [2021-03-24 11:19:01,899 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 80 transitions, 742 flow [2021-03-24 11:19:01,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:01,899 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:01,899 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:01,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-24 11:19:01,899 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:01,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:01,900 INFO L82 PathProgramCache]: Analyzing trace with hash 285010131, now seen corresponding path program 11 times [2021-03-24 11:19:01,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:01,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611131155] [2021-03-24 11:19:01,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:01,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:01,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:01,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:01,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:01,994 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:01,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:02,017 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:19:02,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:02,045 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:02,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:02,079 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:02,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:02,093 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:02,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:02,107 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:19:02,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:19:02,131 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:02,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:02,141 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:19:02,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:02,158 INFO L142 QuantifierPusher]: treesize reduction 24, result has 52.9 percent of original size [2021-03-24 11:19:02,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:02,181 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-24 11:19:02,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:19:02,202 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 11:19:02,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:02,226 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:19:02,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:02,255 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:02,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:02,270 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 11:19:02,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:02,287 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:02,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:02,306 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:02,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:02,329 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:02,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:02,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:02,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:02,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:02,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611131155] [2021-03-24 11:19:02,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:02,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 11:19:02,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227971530] [2021-03-24 11:19:02,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:19:02,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:02,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:19:02,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:19:02,351 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 11:19:02,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 80 transitions, 742 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:02,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:02,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 11:19:02,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:03,282 INFO L129 PetriNetUnfolder]: 27/160 cut-off events. [2021-03-24 11:19:03,282 INFO L130 PetriNetUnfolder]: For 924/931 co-relation queries the response was YES. [2021-03-24 11:19:03,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 160 events. 27/160 cut-off events. For 924/931 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 625 event pairs, 16 based on Foata normal form. 2/161 useless extension candidates. Maximal degree in co-relation 724. Up to 99 conditions per place. [2021-03-24 11:19:03,283 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 48 selfloop transitions, 13 changer transitions 13/85 dead transitions. [2021-03-24 11:19:03,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 85 transitions, 919 flow [2021-03-24 11:19:03,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:19:03,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:19:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2059 transitions. [2021-03-24 11:19:03,285 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4919952210274791 [2021-03-24 11:19:03,285 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2059 transitions. [2021-03-24 11:19:03,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2059 transitions. [2021-03-24 11:19:03,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:03,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2059 transitions. [2021-03-24 11:19:03,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 137.26666666666668) internal successors, (2059), 15 states have internal predecessors, (2059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:03,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:03,291 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:03,291 INFO L185 Difference]: Start difference. First operand has 145 places, 80 transitions, 742 flow. Second operand 15 states and 2059 transitions. [2021-03-24 11:19:03,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 85 transitions, 919 flow [2021-03-24 11:19:03,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 85 transitions, 821 flow, removed 11 selfloop flow, removed 18 redundant places. [2021-03-24 11:19:03,297 INFO L241 Difference]: Finished difference. Result has 135 places, 72 transitions, 585 flow [2021-03-24 11:19:03,297 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=585, PETRI_PLACES=135, PETRI_TRANSITIONS=72} [2021-03-24 11:19:03,297 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 71 predicate places. [2021-03-24 11:19:03,297 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 72 transitions, 585 flow [2021-03-24 11:19:03,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:03,298 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:03,298 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:03,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-24 11:19:03,298 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:03,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:03,298 INFO L82 PathProgramCache]: Analyzing trace with hash 454148075, now seen corresponding path program 12 times [2021-03-24 11:19:03,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:03,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991009029] [2021-03-24 11:19:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:03,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:03,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:03,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:03,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:03,390 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:03,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:03,410 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:19:03,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:03,437 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:03,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:03,473 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:03,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:03,489 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:03,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:03,504 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:19:03,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:19:03,527 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:03,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:03,539 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:19:03,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:03,559 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:03,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:03,578 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:03,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:03,594 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:19:03,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:03,610 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 11:19:03,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:03,629 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:03,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:03,641 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 11:19:03,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:03,658 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:03,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:03,679 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:03,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:03,697 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:03,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:03,698 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:03,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:03,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991009029] [2021-03-24 11:19:03,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:03,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 11:19:03,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055743381] [2021-03-24 11:19:03,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:19:03,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:03,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:19:03,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:19:03,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 11:19:03,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 72 transitions, 585 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:03,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:03,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 11:19:03,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:04,687 INFO L129 PetriNetUnfolder]: 31/165 cut-off events. [2021-03-24 11:19:04,687 INFO L130 PetriNetUnfolder]: For 691/702 co-relation queries the response was YES. [2021-03-24 11:19:04,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 165 events. 31/165 cut-off events. For 691/702 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 640 event pairs, 10 based on Foata normal form. 2/167 useless extension candidates. Maximal degree in co-relation 696. Up to 74 conditions per place. [2021-03-24 11:19:04,688 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 43 selfloop transitions, 18 changer transitions 12/84 dead transitions. [2021-03-24 11:19:04,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 84 transitions, 819 flow [2021-03-24 11:19:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:19:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:19:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2063 transitions. [2021-03-24 11:19:04,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4929510155316607 [2021-03-24 11:19:04,690 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2063 transitions. [2021-03-24 11:19:04,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2063 transitions. [2021-03-24 11:19:04,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:04,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2063 transitions. [2021-03-24 11:19:04,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 137.53333333333333) internal successors, (2063), 15 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:04,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:04,695 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:04,695 INFO L185 Difference]: Start difference. First operand has 135 places, 72 transitions, 585 flow. Second operand 15 states and 2063 transitions. [2021-03-24 11:19:04,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 84 transitions, 819 flow [2021-03-24 11:19:04,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 84 transitions, 727 flow, removed 4 selfloop flow, removed 19 redundant places. [2021-03-24 11:19:04,700 INFO L241 Difference]: Finished difference. Result has 121 places, 69 transitions, 510 flow [2021-03-24 11:19:04,700 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=510, PETRI_PLACES=121, PETRI_TRANSITIONS=69} [2021-03-24 11:19:04,700 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 57 predicate places. [2021-03-24 11:19:04,700 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 69 transitions, 510 flow [2021-03-24 11:19:04,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:04,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:04,701 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:04,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-24 11:19:04,701 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:04,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:04,701 INFO L82 PathProgramCache]: Analyzing trace with hash -460890333, now seen corresponding path program 13 times [2021-03-24 11:19:04,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:04,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137773515] [2021-03-24 11:19:04,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:04,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:04,806 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:04,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:04,826 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:19:04,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:04,851 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:04,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:04,881 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:04,918 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:04,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:04,956 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:04,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:04,958 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:04,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:04,972 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:04,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:04,986 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 11:19:04,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:19:05,006 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:05,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:05,017 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:19:05,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:05,035 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:05,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:05,057 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:05,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:05,079 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 11:19:05,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 11:19:05,098 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:19:05,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:05,110 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:19:05,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:19:05,128 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 11:19:05,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:05,147 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:05,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:05,167 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:05,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:05,186 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:05,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:05,187 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:05,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:05,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137773515] [2021-03-24 11:19:05,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:05,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 11:19:05,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727677227] [2021-03-24 11:19:05,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:19:05,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:05,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:19:05,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:19:05,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 279 [2021-03-24 11:19:05,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 69 transitions, 510 flow. Second operand has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:05,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:05,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 279 [2021-03-24 11:19:05,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:06,255 INFO L129 PetriNetUnfolder]: 26/149 cut-off events. [2021-03-24 11:19:06,255 INFO L130 PetriNetUnfolder]: For 515/522 co-relation queries the response was YES. [2021-03-24 11:19:06,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 149 events. 26/149 cut-off events. For 515/522 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 546 event pairs, 9 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 608. Up to 57 conditions per place. [2021-03-24 11:19:06,256 INFO L132 encePairwiseOnDemand]: 263/279 looper letters, 40 selfloop transitions, 15 changer transitions 25/84 dead transitions. [2021-03-24 11:19:06,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 84 transitions, 759 flow [2021-03-24 11:19:06,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 11:19:06,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 11:19:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1390 transitions. [2021-03-24 11:19:06,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29306346194391736 [2021-03-24 11:19:06,258 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1390 transitions. [2021-03-24 11:19:06,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1390 transitions. [2021-03-24 11:19:06,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:06,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1390 transitions. [2021-03-24 11:19:06,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 81.76470588235294) internal successors, (1390), 17 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:06,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:06,263 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 279.0) internal successors, (5022), 18 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:06,263 INFO L185 Difference]: Start difference. First operand has 121 places, 69 transitions, 510 flow. Second operand 17 states and 1390 transitions. [2021-03-24 11:19:06,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 84 transitions, 759 flow [2021-03-24 11:19:06,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 84 transitions, 696 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-24 11:19:06,267 INFO L241 Difference]: Finished difference. Result has 121 places, 57 transitions, 380 flow [2021-03-24 11:19:06,267 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=380, PETRI_PLACES=121, PETRI_TRANSITIONS=57} [2021-03-24 11:19:06,267 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 57 predicate places. [2021-03-24 11:19:06,267 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 57 transitions, 380 flow [2021-03-24 11:19:06,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:06,268 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:06,268 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:06,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-24 11:19:06,268 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:06,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:06,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1459394297, now seen corresponding path program 14 times [2021-03-24 11:19:06,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:06,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324320671] [2021-03-24 11:19:06,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:06,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:06,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:06,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:06,354 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:06,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:06,375 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-24 11:19:06,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:06,401 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.1 percent of original size [2021-03-24 11:19:06,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 11:19:06,429 INFO L142 QuantifierPusher]: treesize reduction 13, result has 72.3 percent of original size [2021-03-24 11:19:06,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:06,442 INFO L142 QuantifierPusher]: treesize reduction 13, result has 66.7 percent of original size [2021-03-24 11:19:06,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:06,455 INFO L142 QuantifierPusher]: treesize reduction 13, result has 65.8 percent of original size [2021-03-24 11:19:06,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:06,469 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 11:19:06,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 11:19:06,489 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 11:19:06,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:19:06,501 INFO L142 QuantifierPusher]: treesize reduction 22, result has 55.1 percent of original size [2021-03-24 11:19:06,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:06,519 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 11:19:06,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:06,541 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.0 percent of original size [2021-03-24 11:19:06,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:06,561 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.4 percent of original size [2021-03-24 11:19:06,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:06,582 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 11:19:06,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:06,596 INFO L142 QuantifierPusher]: treesize reduction 46, result has 35.2 percent of original size [2021-03-24 11:19:06,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:06,628 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:19:06,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:06,648 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:19:06,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:06,666 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:19:06,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:06,667 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:06,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:06,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324320671] [2021-03-24 11:19:06,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:06,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 11:19:06,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041490777] [2021-03-24 11:19:06,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-24 11:19:06,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:06,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-24 11:19:06,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-03-24 11:19:06,687 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 279 [2021-03-24 11:19:06,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 57 transitions, 380 flow. Second operand has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:06,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:06,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 279 [2021-03-24 11:19:06,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:07,638 INFO L129 PetriNetUnfolder]: 15/96 cut-off events. [2021-03-24 11:19:07,639 INFO L130 PetriNetUnfolder]: For 236/238 co-relation queries the response was YES. [2021-03-24 11:19:07,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 96 events. 15/96 cut-off events. For 236/238 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 213 event pairs, 9 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 357. Up to 52 conditions per place. [2021-03-24 11:19:07,639 INFO L132 encePairwiseOnDemand]: 264/279 looper letters, 30 selfloop transitions, 8 changer transitions 14/61 dead transitions. [2021-03-24 11:19:07,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 61 transitions, 498 flow [2021-03-24 11:19:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:19:07,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:19:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2053 transitions. [2021-03-24 11:19:07,650 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49056152927120666 [2021-03-24 11:19:07,650 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2053 transitions. [2021-03-24 11:19:07,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2053 transitions. [2021-03-24 11:19:07,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:07,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2053 transitions. [2021-03-24 11:19:07,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 136.86666666666667) internal successors, (2053), 15 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:07,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:07,657 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:07,657 INFO L185 Difference]: Start difference. First operand has 121 places, 57 transitions, 380 flow. Second operand 15 states and 2053 transitions. [2021-03-24 11:19:07,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 61 transitions, 498 flow [2021-03-24 11:19:07,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 61 transitions, 371 flow, removed 5 selfloop flow, removed 32 redundant places. [2021-03-24 11:19:07,659 INFO L241 Difference]: Finished difference. Result has 96 places, 47 transitions, 216 flow [2021-03-24 11:19:07,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=216, PETRI_PLACES=96, PETRI_TRANSITIONS=47} [2021-03-24 11:19:07,660 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 32 predicate places. [2021-03-24 11:19:07,660 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 47 transitions, 216 flow [2021-03-24 11:19:07,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 135.55555555555554) internal successors, (2440), 18 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:07,660 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:07,660 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:07,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-24 11:19:07,661 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:07,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:07,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2097713919, now seen corresponding path program 15 times [2021-03-24 11:19:07,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:07,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830224818] [2021-03-24 11:19:07,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:07,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:07,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:07,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:07,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:07,767 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:07,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:07,789 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:19:07,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:07,818 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-03-24 11:19:07,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:07,855 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:07,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:07,870 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:07,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:07,889 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 11:19:07,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:07,907 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:07,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:07,956 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-24 11:19:07,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 11:19:07,967 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-24 11:19:07,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:19:07,998 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.3 percent of original size [2021-03-24 11:19:07,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 11:19:08,038 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-24 11:19:08,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:19:08,068 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size [2021-03-24 11:19:08,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:08,088 INFO L142 QuantifierPusher]: treesize reduction 14, result has 75.0 percent of original size [2021-03-24 11:19:08,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 11:19:08,102 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:19:08,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:08,103 INFO L142 QuantifierPusher]: treesize reduction 41, result has 40.6 percent of original size [2021-03-24 11:19:08,103 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size 25 [2021-03-24 11:19:08,132 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:19:08,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:08,153 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:19:08,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:08,171 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:08,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:08,188 INFO L142 QuantifierPusher]: treesize reduction 8, result has 68.0 percent of original size [2021-03-24 11:19:08,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:08,208 INFO L142 QuantifierPusher]: treesize reduction 8, result has 68.0 percent of original size [2021-03-24 11:19:08,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:08,229 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:08,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:08,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830224818] [2021-03-24 11:19:08,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:08,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 11:19:08,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112962351] [2021-03-24 11:19:08,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:19:08,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:08,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:19:08,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:19:08,232 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 279 [2021-03-24 11:19:08,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 47 transitions, 216 flow. Second operand has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:08,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:08,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 279 [2021-03-24 11:19:08,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:09,205 INFO L129 PetriNetUnfolder]: 15/77 cut-off events. [2021-03-24 11:19:09,205 INFO L130 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2021-03-24 11:19:09,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 77 events. 15/77 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 145 event pairs, 1 based on Foata normal form. 3/80 useless extension candidates. Maximal degree in co-relation 245. Up to 25 conditions per place. [2021-03-24 11:19:09,205 INFO L132 encePairwiseOnDemand]: 265/279 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2021-03-24 11:19:09,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 49 transitions, 307 flow [2021-03-24 11:19:09,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:19:09,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:19:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1209 transitions. [2021-03-24 11:19:09,207 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28888888888888886 [2021-03-24 11:19:09,207 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1209 transitions. [2021-03-24 11:19:09,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1209 transitions. [2021-03-24 11:19:09,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:09,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1209 transitions. [2021-03-24 11:19:09,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 80.6) internal successors, (1209), 15 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:09,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:09,211 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 279.0) internal successors, (4464), 16 states have internal predecessors, (4464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:09,211 INFO L185 Difference]: Start difference. First operand has 96 places, 47 transitions, 216 flow. Second operand 15 states and 1209 transitions. [2021-03-24 11:19:09,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 49 transitions, 307 flow [2021-03-24 11:19:09,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 49 transitions, 258 flow, removed 3 selfloop flow, removed 15 redundant places. [2021-03-24 11:19:09,212 INFO L241 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2021-03-24 11:19:09,212 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=279, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2021-03-24 11:19:09,213 INFO L343 CegarLoopForPetriNet]: 64 programPoint places, 13 predicate places. [2021-03-24 11:19:09,213 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2021-03-24 11:19:09,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 79.65) internal successors, (1593), 20 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:09,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-24 11:19:09,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:19:09 BasicIcfg [2021-03-24 11:19:09,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:19:09,322 INFO L168 Benchmark]: Toolchain (without parser) took 43233.53 ms. Allocated memory was 354.4 MB in the beginning and 887.1 MB in the end (delta: 532.7 MB). Free memory was 315.5 MB in the beginning and 765.4 MB in the end (delta: -449.9 MB). Peak memory consumption was 85.7 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:09,322 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 354.4 MB. Free memory was 335.5 MB in the beginning and 335.4 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:19:09,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 981.92 ms. Allocated memory is still 354.4 MB. Free memory was 315.4 MB in the beginning and 294.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 81.9 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:09,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.15 ms. Allocated memory is still 354.4 MB. Free memory was 294.5 MB in the beginning and 291.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:09,322 INFO L168 Benchmark]: Boogie Preprocessor took 32.89 ms. Allocated memory is still 354.4 MB. Free memory was 291.3 MB in the beginning and 289.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:09,322 INFO L168 Benchmark]: RCFGBuilder took 674.38 ms. Allocated memory is still 354.4 MB. Free memory was 289.2 MB in the beginning and 241.0 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:09,322 INFO L168 Benchmark]: TraceAbstraction took 41464.75 ms. Allocated memory was 354.4 MB in the beginning and 887.1 MB in the end (delta: 532.7 MB). Free memory was 241.0 MB in the beginning and 765.4 MB in the end (delta: -524.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:09,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 354.4 MB. Free memory was 335.5 MB in the beginning and 335.4 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 981.92 ms. Allocated memory is still 354.4 MB. Free memory was 315.4 MB in the beginning and 294.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 81.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 73.15 ms. Allocated memory is still 354.4 MB. Free memory was 294.5 MB in the beginning and 291.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.89 ms. Allocated memory is still 354.4 MB. Free memory was 291.3 MB in the beginning and 289.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 674.38 ms. Allocated memory is still 354.4 MB. Free memory was 289.2 MB in the beginning and 241.0 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 41464.75 ms. Allocated memory was 354.4 MB in the beginning and 887.1 MB in the end (delta: 532.7 MB). Free memory was 241.0 MB in the beginning and 765.4 MB in the end (delta: -524.4 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3051.7ms, 150 PlacesBefore, 64 PlacesAfterwards, 152 TransitionsBefore, 65 TransitionsAfterwards, 2288 CoEnabledTransitionPairs, 5 FixpointIterations, 67 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 115 TotalNumberOfCompositions, 3162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1528, positive: 1448, positive conditional: 0, positive unconditional: 1448, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1112, positive: 1088, positive conditional: 0, positive unconditional: 1088, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1112, positive: 1088, positive conditional: 0, positive unconditional: 1088, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1528, positive: 360, positive conditional: 0, positive unconditional: 360, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 1112, unknown conditional: 0, unknown unconditional: 1112] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 140 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 41274.3ms, OverallIterations: 31, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 26666.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3169.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 621 SDtfs, 2642 SDslu, 2367 SDs, 0 SdLazy, 12076 SolverSat, 1228 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6863.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 745 GetRequests, 63 SyntacticMatches, 52 SemanticMatches, 630 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1828 ImplicationChecksByTransitivity, 20112.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4366occurred in iteration=16, InterpolantAutomatonStates: 371, 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: 70.6ms SsaConstructionTime, 749.4ms SatisfiabilityAnalysisTime, 10133.5ms InterpolantComputationTime, 1022 NumberOfCodeBlocks, 1022 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 991 ConstructedInterpolants, 0 QuantifiedInterpolants, 17588 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...