/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 12:27:20,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 12:27:20,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 12:27:20,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 12:27:20,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 12:27:20,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 12:27:20,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 12:27:20,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 12:27:20,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 12:27:20,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 12:27:20,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 12:27:20,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 12:27:20,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 12:27:20,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 12:27:20,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 12:27:20,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 12:27:20,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 12:27:20,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 12:27:20,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 12:27:20,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 12:27:20,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 12:27:20,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 12:27:20,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 12:27:20,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 12:27:20,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 12:27:20,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 12:27:20,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 12:27:20,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 12:27:20,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 12:27:20,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 12:27:20,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 12:27:20,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 12:27:20,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 12:27:20,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 12:27:20,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 12:27:20,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 12:27:20,980 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-NoLbe.epf [2021-06-10 12:27:21,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 12:27:21,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 12:27:21,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 12:27:21,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 12:27:21,009 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 12:27:21,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 12:27:21,009 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 12:27:21,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 12:27:21,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 12:27:21,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 12:27:21,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 12:27:21,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 12:27:21,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 12:27:21,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 12:27:21,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 12:27:21,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 12:27:21,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 12:27:21,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 12:27:21,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 12:27:21,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 12:27:21,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 12:27:21,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 12:27:21,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 12:27:21,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 12:27:21,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 12:27:21,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 12:27:21,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 12:27:21,012 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 12:27:21,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 12:27:21,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 12:27:21,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 12:27:21,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 12:27:21,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 12:27:21,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 12:27:21,278 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 12:27:21,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-06-10 12:27:21,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6230802/9d3bff1a619e40109eac8e3d19929d65/FLAG81e7ed6c8 [2021-06-10 12:27:21,780 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 12:27:21,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i [2021-06-10 12:27:21,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6230802/9d3bff1a619e40109eac8e3d19929d65/FLAG81e7ed6c8 [2021-06-10 12:27:22,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa6230802/9d3bff1a619e40109eac8e3d19929d65 [2021-06-10 12:27:22,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 12:27:22,101 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 12:27:22,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 12:27:22,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 12:27:22,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 12:27:22,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af8abac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22, skipping insertion in model container [2021-06-10 12:27:22,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 12:27:22,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 12:27:22,261 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-06-10 12:27:22,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:27:22,369 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 12:27:22,376 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc.i[950,963] [2021-06-10 12:27:22,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:27:22,429 INFO L208 MainTranslator]: Completed translation [2021-06-10 12:27:22,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22 WrapperNode [2021-06-10 12:27:22,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 12:27:22,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 12:27:22,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 12:27:22,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 12:27:22,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 12:27:22,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 12:27:22,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 12:27:22,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 12:27:22,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... [2021-06-10 12:27:22,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 12:27:22,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 12:27:22,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 12:27:22,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 12:27:22,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 12:27:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 12:27:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 12:27:22,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 12:27:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 12:27:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 12:27:22,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 12:27:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 12:27:22,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 12:27:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 12:27:22,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 12:27:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-10 12:27:22,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-10 12:27:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 12:27:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 12:27:22,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 12:27:22,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 12:27:22,543 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 12:27:22,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 12:27:22,807 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-10 12:27:22,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:27:22 BoogieIcfgContainer [2021-06-10 12:27:22,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 12:27:22,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 12:27:22,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 12:27:22,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 12:27:22,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 12:27:22" (1/3) ... [2021-06-10 12:27:22,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714d23d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:27:22, skipping insertion in model container [2021-06-10 12:27:22,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:27:22" (2/3) ... [2021-06-10 12:27:22,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714d23d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:27:22, skipping insertion in model container [2021-06-10 12:27:22,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:27:22" (3/3) ... [2021-06-10 12:27:22,815 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc.i [2021-06-10 12:27:22,819 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 12:27:22,823 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 12:27:22,823 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 12:27:22,844 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,844 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,845 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,845 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,845 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,845 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,845 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,846 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,847 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,847 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,847 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,847 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,847 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,847 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,847 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,847 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,848 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,848 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,848 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,849 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,849 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,849 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,849 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,849 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,849 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,849 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,849 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,850 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,850 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,850 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,850 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,850 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,850 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,851 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,852 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,852 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,852 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,855 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,856 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,856 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,857 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,857 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,857 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,859 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,859 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,859 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,859 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:27:22,860 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 12:27:22,872 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-10 12:27:22,886 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 12:27:22,886 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 12:27:22,886 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 12:27:22,887 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 12:27:22,887 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 12:27:22,887 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 12:27:22,887 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 12:27:22,887 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 12:27:22,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-06-10 12:27:22,919 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-06-10 12:27:22,919 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:27:22,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-06-10 12:27:22,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-06-10 12:27:22,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-06-10 12:27:22,937 INFO L129 PetriNetUnfolder]: 1/67 cut-off events. [2021-06-10 12:27:22,937 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:27:22,937 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:22,938 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:22,938 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:22,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:22,942 INFO L82 PathProgramCache]: Analyzing trace with hash 117794534, now seen corresponding path program 1 times [2021-06-10 12:27:22,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:22,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025887226] [2021-06-10 12:27:22,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:23,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:23,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:23,205 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:27:23,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:27:23,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:23,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:23,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:23,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025887226] [2021-06-10 12:27:23,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:23,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:27:23,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753449758] [2021-06-10 12:27:23,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:27:23,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:23,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:27:23,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:27:23,272 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 86 [2021-06-10 12:27:23,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 68 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:23,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 86 [2021-06-10 12:27:23,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:23,421 INFO L129 PetriNetUnfolder]: 3/90 cut-off events. [2021-06-10 12:27:23,421 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:27:23,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 0 based on Foata normal form. 4/93 useless extension candidates. Maximal degree in co-relation 93. Up to 7 conditions per place. [2021-06-10 12:27:23,423 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 6 selfloop transitions, 2 changer transitions 11/77 dead transitions. [2021-06-10 12:27:23,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 77 transitions, 202 flow [2021-06-10 12:27:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:27:23,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:27:23,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 688 transitions. [2021-06-10 12:27:23,441 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-06-10 12:27:23,442 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 688 transitions. [2021-06-10 12:27:23,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 688 transitions. [2021-06-10 12:27:23,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:23,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 688 transitions. [2021-06-10 12:27:23,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.44444444444444) internal successors, (688), 9 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,461 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,462 INFO L185 Difference]: Start difference. First operand has 80 places, 68 transitions, 148 flow. Second operand 9 states and 688 transitions. [2021-06-10 12:27:23,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 77 transitions, 202 flow [2021-06-10 12:27:23,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 77 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 12:27:23,472 INFO L241 Difference]: Finished difference. Result has 91 places, 66 transitions, 160 flow [2021-06-10 12:27:23,473 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=160, PETRI_PLACES=91, PETRI_TRANSITIONS=66} [2021-06-10 12:27:23,474 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 11 predicate places. [2021-06-10 12:27:23,474 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 66 transitions, 160 flow [2021-06-10 12:27:23,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:23,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:23,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 12:27:23,475 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:23,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:23,476 INFO L82 PathProgramCache]: Analyzing trace with hash -37859065, now seen corresponding path program 1 times [2021-06-10 12:27:23,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:23,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608532573] [2021-06-10 12:27:23,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:23,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:23,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:23,553 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:27:23,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:27:23,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:23,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:23,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:23,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608532573] [2021-06-10 12:27:23,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:23,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:27:23,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43182646] [2021-06-10 12:27:23,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:27:23,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:23,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:27:23,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:27:23,584 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 86 [2021-06-10 12:27:23,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 66 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:23,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 86 [2021-06-10 12:27:23,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:23,748 INFO L129 PetriNetUnfolder]: 82/250 cut-off events. [2021-06-10 12:27:23,748 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-06-10 12:27:23,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 250 events. 82/250 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 987 event pairs, 10 based on Foata normal form. 8/250 useless extension candidates. Maximal degree in co-relation 465. Up to 78 conditions per place. [2021-06-10 12:27:23,753 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 10 selfloop transitions, 3 changer transitions 25/94 dead transitions. [2021-06-10 12:27:23,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 94 transitions, 310 flow [2021-06-10 12:27:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:27:23,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:27:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 688 transitions. [2021-06-10 12:27:23,758 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-06-10 12:27:23,759 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 688 transitions. [2021-06-10 12:27:23,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 688 transitions. [2021-06-10 12:27:23,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:23,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 688 transitions. [2021-06-10 12:27:23,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.44444444444444) internal successors, (688), 9 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,762 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,762 INFO L185 Difference]: Start difference. First operand has 91 places, 66 transitions, 160 flow. Second operand 9 states and 688 transitions. [2021-06-10 12:27:23,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 94 transitions, 310 flow [2021-06-10 12:27:23,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 94 transitions, 278 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-06-10 12:27:23,770 INFO L241 Difference]: Finished difference. Result has 91 places, 68 transitions, 187 flow [2021-06-10 12:27:23,770 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=187, PETRI_PLACES=91, PETRI_TRANSITIONS=68} [2021-06-10 12:27:23,770 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 11 predicate places. [2021-06-10 12:27:23,770 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 68 transitions, 187 flow [2021-06-10 12:27:23,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,771 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:23,771 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:23,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 12:27:23,772 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:23,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:23,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1307440456, now seen corresponding path program 1 times [2021-06-10 12:27:23,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:23,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870412877] [2021-06-10 12:27:23,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:23,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:23,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:23,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:23,851 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 12:27:23,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:27:23,859 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:27:23,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:27:23,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:23,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:23,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:23,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:23,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870412877] [2021-06-10 12:27:23,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:23,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-10 12:27:23,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826387765] [2021-06-10 12:27:23,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 12:27:23,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:23,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 12:27:23,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-10 12:27:23,890 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2021-06-10 12:27:23,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 68 transitions, 187 flow. Second operand has 8 states, 8 states have (on average 66.625) internal successors, (533), 8 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:23,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:23,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2021-06-10 12:27:23,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:24,149 INFO L129 PetriNetUnfolder]: 289/769 cut-off events. [2021-06-10 12:27:24,149 INFO L130 PetriNetUnfolder]: For 1053/1573 co-relation queries the response was YES. [2021-06-10 12:27:24,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2065 conditions, 769 events. 289/769 cut-off events. For 1053/1573 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4594 event pairs, 13 based on Foata normal form. 31/773 useless extension candidates. Maximal degree in co-relation 2025. Up to 170 conditions per place. [2021-06-10 12:27:24,154 INFO L132 encePairwiseOnDemand]: 72/86 looper letters, 21 selfloop transitions, 11 changer transitions 67/148 dead transitions. [2021-06-10 12:27:24,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 148 transitions, 798 flow [2021-06-10 12:27:24,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-10 12:27:24,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-10 12:27:24,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1202 transitions. [2021-06-10 12:27:24,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8221614227086184 [2021-06-10 12:27:24,157 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1202 transitions. [2021-06-10 12:27:24,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1202 transitions. [2021-06-10 12:27:24,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:24,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1202 transitions. [2021-06-10 12:27:24,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 70.70588235294117) internal successors, (1202), 17 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) [2021-06-10 12:27:24,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 86.0) internal successors, (1548), 18 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,162 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 86.0) internal successors, (1548), 18 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,162 INFO L185 Difference]: Start difference. First operand has 91 places, 68 transitions, 187 flow. Second operand 17 states and 1202 transitions. [2021-06-10 12:27:24,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 148 transitions, 798 flow [2021-06-10 12:27:24,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 148 transitions, 763 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-06-10 12:27:24,168 INFO L241 Difference]: Finished difference. Result has 112 places, 71 transitions, 281 flow [2021-06-10 12:27:24,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=281, PETRI_PLACES=112, PETRI_TRANSITIONS=71} [2021-06-10 12:27:24,168 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 32 predicate places. [2021-06-10 12:27:24,168 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 71 transitions, 281 flow [2021-06-10 12:27:24,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 66.625) internal successors, (533), 8 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:24,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:24,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 12:27:24,169 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:24,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:24,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1340068423, now seen corresponding path program 1 times [2021-06-10 12:27:24,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:24,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242275532] [2021-06-10 12:27:24,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:24,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:24,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:24,219 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:27:24,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:27:24,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:24,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:24,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:24,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242275532] [2021-06-10 12:27:24,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:24,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:27:24,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181530793] [2021-06-10 12:27:24,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:27:24,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:24,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:27:24,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:27:24,254 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 86 [2021-06-10 12:27:24,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 71 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:24,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 86 [2021-06-10 12:27:24,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:24,372 INFO L129 PetriNetUnfolder]: 55/260 cut-off events. [2021-06-10 12:27:24,372 INFO L130 PetriNetUnfolder]: For 1427/1480 co-relation queries the response was YES. [2021-06-10 12:27:24,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 260 events. 55/260 cut-off events. For 1427/1480 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1234 event pairs, 26 based on Foata normal form. 10/263 useless extension candidates. Maximal degree in co-relation 933. Up to 64 conditions per place. [2021-06-10 12:27:24,374 INFO L132 encePairwiseOnDemand]: 80/86 looper letters, 6 selfloop transitions, 3 changer transitions 13/84 dead transitions. [2021-06-10 12:27:24,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 84 transitions, 434 flow [2021-06-10 12:27:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:27:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:27:24,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 686 transitions. [2021-06-10 12:27:24,376 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8863049095607235 [2021-06-10 12:27:24,376 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 686 transitions. [2021-06-10 12:27:24,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 686 transitions. [2021-06-10 12:27:24,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:24,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 686 transitions. [2021-06-10 12:27:24,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.22222222222223) internal successors, (686), 9 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,379 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,379 INFO L185 Difference]: Start difference. First operand has 112 places, 71 transitions, 281 flow. Second operand 9 states and 686 transitions. [2021-06-10 12:27:24,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 84 transitions, 434 flow [2021-06-10 12:27:24,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 84 transitions, 354 flow, removed 30 selfloop flow, removed 13 redundant places. [2021-06-10 12:27:24,385 INFO L241 Difference]: Finished difference. Result has 102 places, 71 transitions, 261 flow [2021-06-10 12:27:24,385 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=261, PETRI_PLACES=102, PETRI_TRANSITIONS=71} [2021-06-10 12:27:24,385 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 22 predicate places. [2021-06-10 12:27:24,386 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 71 transitions, 261 flow [2021-06-10 12:27:24,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 75.16666666666667) internal successors, (451), 6 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:24,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:24,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 12:27:24,386 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:24,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:24,387 INFO L82 PathProgramCache]: Analyzing trace with hash -331441590, now seen corresponding path program 1 times [2021-06-10 12:27:24,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:24,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980118014] [2021-06-10 12:27:24,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:24,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:24,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:24,453 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 12:27:24,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:27:24,462 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:27:24,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:27:24,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:24,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:24,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:24,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980118014] [2021-06-10 12:27:24,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:24,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:27:24,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24301711] [2021-06-10 12:27:24,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:27:24,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:24,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:27:24,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:27:24,497 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 86 [2021-06-10 12:27:24,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 71 transitions, 261 flow. Second operand has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:24,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 86 [2021-06-10 12:27:24,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:24,629 INFO L129 PetriNetUnfolder]: 55/290 cut-off events. [2021-06-10 12:27:24,629 INFO L130 PetriNetUnfolder]: For 1040/1169 co-relation queries the response was YES. [2021-06-10 12:27:24,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 290 events. 55/290 cut-off events. For 1040/1169 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1416 event pairs, 16 based on Foata normal form. 14/300 useless extension candidates. Maximal degree in co-relation 908. Up to 66 conditions per place. [2021-06-10 12:27:24,631 INFO L132 encePairwiseOnDemand]: 75/86 looper letters, 18 selfloop transitions, 10 changer transitions 16/95 dead transitions. [2021-06-10 12:27:24,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 95 transitions, 578 flow [2021-06-10 12:27:24,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:27:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:27:24,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 713 transitions. [2021-06-10 12:27:24,633 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8290697674418605 [2021-06-10 12:27:24,634 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 713 transitions. [2021-06-10 12:27:24,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 713 transitions. [2021-06-10 12:27:24,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:24,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 713 transitions. [2021-06-10 12:27:24,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.3) internal successors, (713), 10 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,659 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,659 INFO L185 Difference]: Start difference. First operand has 102 places, 71 transitions, 261 flow. Second operand 10 states and 713 transitions. [2021-06-10 12:27:24,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 95 transitions, 578 flow [2021-06-10 12:27:24,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 95 transitions, 512 flow, removed 29 selfloop flow, removed 8 redundant places. [2021-06-10 12:27:24,662 INFO L241 Difference]: Finished difference. Result has 105 places, 74 transitions, 298 flow [2021-06-10 12:27:24,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=298, PETRI_PLACES=105, PETRI_TRANSITIONS=74} [2021-06-10 12:27:24,663 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 25 predicate places. [2021-06-10 12:27:24,663 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 74 transitions, 298 flow [2021-06-10 12:27:24,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:24,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:24,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 12:27:24,663 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:24,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:24,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1015721958, now seen corresponding path program 1 times [2021-06-10 12:27:24,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:24,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81484952] [2021-06-10 12:27:24,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:24,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:24,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:24,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:24,707 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:27:24,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:27:24,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:24,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:24,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:24,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:24,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81484952] [2021-06-10 12:27:24,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:24,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:27:24,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182519947] [2021-06-10 12:27:24,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:27:24,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:24,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:27:24,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:27:24,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-06-10 12:27:24,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 74 transitions, 298 flow. Second operand has 7 states, 7 states have (on average 72.42857142857143) internal successors, (507), 7 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:24,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-06-10 12:27:24,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:24,832 INFO L129 PetriNetUnfolder]: 37/272 cut-off events. [2021-06-10 12:27:24,832 INFO L130 PetriNetUnfolder]: For 1163/1229 co-relation queries the response was YES. [2021-06-10 12:27:24,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 272 events. 37/272 cut-off events. For 1163/1229 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1425 event pairs, 26 based on Foata normal form. 19/287 useless extension candidates. Maximal degree in co-relation 830. Up to 49 conditions per place. [2021-06-10 12:27:24,834 INFO L132 encePairwiseOnDemand]: 77/86 looper letters, 9 selfloop transitions, 7 changer transitions 11/84 dead transitions. [2021-06-10 12:27:24,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 84 transitions, 472 flow [2021-06-10 12:27:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 12:27:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 12:27:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 521 transitions. [2021-06-10 12:27:24,836 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8654485049833887 [2021-06-10 12:27:24,836 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 521 transitions. [2021-06-10 12:27:24,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 521 transitions. [2021-06-10 12:27:24,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:24,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 521 transitions. [2021-06-10 12:27:24,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.42857142857143) internal successors, (521), 7 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,838 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,839 INFO L185 Difference]: Start difference. First operand has 105 places, 74 transitions, 298 flow. Second operand 7 states and 521 transitions. [2021-06-10 12:27:24,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 84 transitions, 472 flow [2021-06-10 12:27:24,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 84 transitions, 421 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-06-10 12:27:24,842 INFO L241 Difference]: Finished difference. Result has 102 places, 73 transitions, 288 flow [2021-06-10 12:27:24,842 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=288, PETRI_PLACES=102, PETRI_TRANSITIONS=73} [2021-06-10 12:27:24,842 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 22 predicate places. [2021-06-10 12:27:24,843 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 73 transitions, 288 flow [2021-06-10 12:27:24,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.42857142857143) internal successors, (507), 7 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,843 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:24,843 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:24,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 12:27:24,843 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:24,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:24,843 INFO L82 PathProgramCache]: Analyzing trace with hash 138398280, now seen corresponding path program 2 times [2021-06-10 12:27:24,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:24,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924741445] [2021-06-10 12:27:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:24,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:24,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:24,887 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:27:24,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:27:24,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:27:24,916 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:27:24,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:24,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:24,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:24,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924741445] [2021-06-10 12:27:24,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:24,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:27:24,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224844966] [2021-06-10 12:27:24,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:27:24,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:24,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:27:24,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:27:24,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-06-10 12:27:24,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 73 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:24,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:24,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-06-10 12:27:24,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:25,189 INFO L129 PetriNetUnfolder]: 1175/2416 cut-off events. [2021-06-10 12:27:25,189 INFO L130 PetriNetUnfolder]: For 1763/1852 co-relation queries the response was YES. [2021-06-10 12:27:25,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5229 conditions, 2416 events. 1175/2416 cut-off events. For 1763/1852 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 18540 event pairs, 118 based on Foata normal form. 70/2271 useless extension candidates. Maximal degree in co-relation 5176. Up to 900 conditions per place. [2021-06-10 12:27:25,210 INFO L132 encePairwiseOnDemand]: 76/86 looper letters, 23 selfloop transitions, 19 changer transitions 0/104 dead transitions. [2021-06-10 12:27:25,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 104 transitions, 434 flow [2021-06-10 12:27:25,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:27:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:27:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 683 transitions. [2021-06-10 12:27:25,212 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8824289405684754 [2021-06-10 12:27:25,212 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 683 transitions. [2021-06-10 12:27:25,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 683 transitions. [2021-06-10 12:27:25,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:25,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 683 transitions. [2021-06-10 12:27:25,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.88888888888889) internal successors, (683), 9 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,215 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 86.0) internal successors, (860), 10 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,215 INFO L185 Difference]: Start difference. First operand has 102 places, 73 transitions, 288 flow. Second operand 9 states and 683 transitions. [2021-06-10 12:27:25,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 104 transitions, 434 flow [2021-06-10 12:27:25,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 104 transitions, 412 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-06-10 12:27:25,221 INFO L241 Difference]: Finished difference. Result has 106 places, 90 transitions, 400 flow [2021-06-10 12:27:25,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=400, PETRI_PLACES=106, PETRI_TRANSITIONS=90} [2021-06-10 12:27:25,221 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 26 predicate places. [2021-06-10 12:27:25,221 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 400 flow [2021-06-10 12:27:25,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:25,221 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:25,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 12:27:25,222 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:25,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:25,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1321927262, now seen corresponding path program 1 times [2021-06-10 12:27:25,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:25,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806163845] [2021-06-10 12:27:25,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:25,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:25,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:25,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:25,277 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:27:25,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:27:25,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:27:25,299 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:27:25,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:25,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:25,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806163845] [2021-06-10 12:27:25,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:25,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:27:25,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916321225] [2021-06-10 12:27:25,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:27:25,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:25,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:27:25,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:27:25,310 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-06-10 12:27:25,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 400 flow. Second operand has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:25,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-06-10 12:27:25,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:25,672 INFO L129 PetriNetUnfolder]: 1264/2630 cut-off events. [2021-06-10 12:27:25,673 INFO L130 PetriNetUnfolder]: For 7453/9304 co-relation queries the response was YES. [2021-06-10 12:27:25,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9903 conditions, 2630 events. 1264/2630 cut-off events. For 7453/9304 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 21083 event pairs, 46 based on Foata normal form. 260/2678 useless extension candidates. Maximal degree in co-relation 9849. Up to 1384 conditions per place. [2021-06-10 12:27:25,695 INFO L132 encePairwiseOnDemand]: 76/86 looper letters, 25 selfloop transitions, 37 changer transitions 0/124 dead transitions. [2021-06-10 12:27:25,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 124 transitions, 753 flow [2021-06-10 12:27:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-10 12:27:25,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-10 12:27:25,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 912 transitions. [2021-06-10 12:27:25,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8837209302325582 [2021-06-10 12:27:25,697 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 912 transitions. [2021-06-10 12:27:25,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 912 transitions. [2021-06-10 12:27:25,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:25,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 912 transitions. [2021-06-10 12:27:25,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,700 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,700 INFO L185 Difference]: Start difference. First operand has 106 places, 90 transitions, 400 flow. Second operand 12 states and 912 transitions. [2021-06-10 12:27:25,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 124 transitions, 753 flow [2021-06-10 12:27:25,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 12:27:25,708 INFO L241 Difference]: Finished difference. Result has 121 places, 109 transitions, 678 flow [2021-06-10 12:27:25,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=678, PETRI_PLACES=121, PETRI_TRANSITIONS=109} [2021-06-10 12:27:25,709 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 41 predicate places. [2021-06-10 12:27:25,709 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 109 transitions, 678 flow [2021-06-10 12:27:25,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,709 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:25,709 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:25,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 12:27:25,709 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:25,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:25,710 INFO L82 PathProgramCache]: Analyzing trace with hash -161071213, now seen corresponding path program 1 times [2021-06-10 12:27:25,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:25,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987901084] [2021-06-10 12:27:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:25,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:25,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:25,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:25,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:25,768 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:27:25,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:27:25,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:27:25,789 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:27:25,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:25,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:25,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:25,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987901084] [2021-06-10 12:27:25,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:25,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-10 12:27:25,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019239899] [2021-06-10 12:27:25,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 12:27:25,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:25,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 12:27:25,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-10 12:27:25,801 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-06-10 12:27:25,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 109 transitions, 678 flow. Second operand has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:25,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:25,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-06-10 12:27:25,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:26,218 INFO L129 PetriNetUnfolder]: 1209/2542 cut-off events. [2021-06-10 12:27:26,218 INFO L130 PetriNetUnfolder]: For 21863/28341 co-relation queries the response was YES. [2021-06-10 12:27:26,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13641 conditions, 2542 events. 1209/2542 cut-off events. For 21863/28341 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 21035 event pairs, 8 based on Foata normal form. 409/2747 useless extension candidates. Maximal degree in co-relation 13580. Up to 1344 conditions per place. [2021-06-10 12:27:26,240 INFO L132 encePairwiseOnDemand]: 76/86 looper letters, 19 selfloop transitions, 57 changer transitions 8/146 dead transitions. [2021-06-10 12:27:26,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 146 transitions, 1252 flow [2021-06-10 12:27:26,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-10 12:27:26,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-10 12:27:26,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1141 transitions. [2021-06-10 12:27:26,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8844961240310077 [2021-06-10 12:27:26,242 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1141 transitions. [2021-06-10 12:27:26,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1141 transitions. [2021-06-10 12:27:26,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:26,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1141 transitions. [2021-06-10 12:27:26,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.06666666666666) internal successors, (1141), 15 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 86.0) internal successors, (1376), 16 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,247 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 86.0) internal successors, (1376), 16 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,247 INFO L185 Difference]: Start difference. First operand has 121 places, 109 transitions, 678 flow. Second operand 15 states and 1141 transitions. [2021-06-10 12:27:26,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 146 transitions, 1252 flow [2021-06-10 12:27:26,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 146 transitions, 1149 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-06-10 12:27:26,279 INFO L241 Difference]: Finished difference. Result has 134 places, 134 transitions, 1027 flow [2021-06-10 12:27:26,279 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1027, PETRI_PLACES=134, PETRI_TRANSITIONS=134} [2021-06-10 12:27:26,280 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 54 predicate places. [2021-06-10 12:27:26,280 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 134 transitions, 1027 flow [2021-06-10 12:27:26,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:26,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:26,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 12:27:26,280 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:26,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:26,280 INFO L82 PathProgramCache]: Analyzing trace with hash 2021654172, now seen corresponding path program 1 times [2021-06-10 12:27:26,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:26,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635394187] [2021-06-10 12:27:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:26,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:26,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:26,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:26,305 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:27:26,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:27:26,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:26,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:26,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:26,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635394187] [2021-06-10 12:27:26,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:26,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:27:26,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712900814] [2021-06-10 12:27:26,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:27:26,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:26,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:27:26,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:27:26,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-06-10 12:27:26,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 134 transitions, 1027 flow. Second operand has 7 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:26,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-06-10 12:27:26,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:26,621 INFO L129 PetriNetUnfolder]: 1112/2796 cut-off events. [2021-06-10 12:27:26,621 INFO L130 PetriNetUnfolder]: For 21923/22763 co-relation queries the response was YES. [2021-06-10 12:27:26,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12918 conditions, 2796 events. 1112/2796 cut-off events. For 21923/22763 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 26297 event pairs, 8 based on Foata normal form. 12/2612 useless extension candidates. Maximal degree in co-relation 12852. Up to 1052 conditions per place. [2021-06-10 12:27:26,695 INFO L132 encePairwiseOnDemand]: 79/86 looper letters, 15 selfloop transitions, 5 changer transitions 4/142 dead transitions. [2021-06-10 12:27:26,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 142 transitions, 1121 flow [2021-06-10 12:27:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-10 12:27:26,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-10 12:27:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 591 transitions. [2021-06-10 12:27:26,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2021-06-10 12:27:26,697 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 591 transitions. [2021-06-10 12:27:26,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 591 transitions. [2021-06-10 12:27:26,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:26,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 591 transitions. [2021-06-10 12:27:26,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 73.875) internal successors, (591), 8 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,699 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,699 INFO L185 Difference]: Start difference. First operand has 134 places, 134 transitions, 1027 flow. Second operand 8 states and 591 transitions. [2021-06-10 12:27:26,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 142 transitions, 1121 flow [2021-06-10 12:27:26,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 142 transitions, 808 flow, removed 114 selfloop flow, removed 11 redundant places. [2021-06-10 12:27:26,837 INFO L241 Difference]: Finished difference. Result has 134 places, 134 transitions, 733 flow [2021-06-10 12:27:26,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=733, PETRI_PLACES=134, PETRI_TRANSITIONS=134} [2021-06-10 12:27:26,837 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 54 predicate places. [2021-06-10 12:27:26,837 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 134 transitions, 733 flow [2021-06-10 12:27:26,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 72.57142857142857) internal successors, (508), 7 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:26,838 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:26,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-10 12:27:26,838 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:26,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:26,838 INFO L82 PathProgramCache]: Analyzing trace with hash -875830394, now seen corresponding path program 2 times [2021-06-10 12:27:26,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:26,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512749282] [2021-06-10 12:27:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:26,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:26,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:26,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:26,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:26,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:26,882 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-10 12:27:26,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:27:26,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 12:27:26,901 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-10 12:27:26,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:26,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:26,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:26,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512749282] [2021-06-10 12:27:26,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:26,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-10 12:27:26,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123183575] [2021-06-10 12:27:26,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-10 12:27:26,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:26,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-10 12:27:26,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-10 12:27:26,911 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 86 [2021-06-10 12:27:26,912 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 134 transitions, 733 flow. Second operand has 9 states, 9 states have (on average 72.11111111111111) internal successors, (649), 9 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:26,912 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:26,912 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 86 [2021-06-10 12:27:26,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:27,429 INFO L129 PetriNetUnfolder]: 1436/3129 cut-off events. [2021-06-10 12:27:27,429 INFO L130 PetriNetUnfolder]: For 5938/8627 co-relation queries the response was YES. [2021-06-10 12:27:27,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10414 conditions, 3129 events. 1436/3129 cut-off events. For 5938/8627 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 28258 event pairs, 1 based on Foata normal form. 457/3321 useless extension candidates. Maximal degree in co-relation 10378. Up to 572 conditions per place. [2021-06-10 12:27:27,448 INFO L132 encePairwiseOnDemand]: 76/86 looper letters, 12 selfloop transitions, 63 changer transitions 21/158 dead transitions. [2021-06-10 12:27:27,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 158 transitions, 1082 flow [2021-06-10 12:27:27,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-10 12:27:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-10 12:27:27,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1354 transitions. [2021-06-10 12:27:27,452 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8746770025839793 [2021-06-10 12:27:27,452 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1354 transitions. [2021-06-10 12:27:27,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1354 transitions. [2021-06-10 12:27:27,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:27,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1354 transitions. [2021-06-10 12:27:27,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 75.22222222222223) internal successors, (1354), 18 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:27,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 86.0) internal successors, (1634), 19 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:27,460 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 86.0) internal successors, (1634), 19 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:27,460 INFO L185 Difference]: Start difference. First operand has 134 places, 134 transitions, 733 flow. Second operand 18 states and 1354 transitions. [2021-06-10 12:27:27,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 158 transitions, 1082 flow [2021-06-10 12:27:27,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 158 transitions, 1039 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-06-10 12:27:27,502 INFO L241 Difference]: Finished difference. Result has 144 places, 133 transitions, 854 flow [2021-06-10 12:27:27,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=854, PETRI_PLACES=144, PETRI_TRANSITIONS=133} [2021-06-10 12:27:27,502 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 64 predicate places. [2021-06-10 12:27:27,502 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 133 transitions, 854 flow [2021-06-10 12:27:27,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 72.11111111111111) internal successors, (649), 9 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:27,503 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:27:27,503 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:27:27,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-10 12:27:27,503 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:27:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:27:27,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1399614661, now seen corresponding path program 1 times [2021-06-10 12:27:27,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:27:27,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13603988] [2021-06-10 12:27:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:27:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:27:27,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:27,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:27,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:27,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:27:27,556 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-10 12:27:27,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:27:27,565 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:27:27,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:27:27,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:27,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:27,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:27,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:27:27,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:27:27,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:27:27,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:27:27,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13603988] [2021-06-10 12:27:27,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:27:27,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:27:27,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69135415] [2021-06-10 12:27:27,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:27:27,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:27:27,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:27:27,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:27:27,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 86 [2021-06-10 12:27:27,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 854 flow. Second operand has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:27,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:27:27,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 86 [2021-06-10 12:27:27,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:27:27,889 INFO L129 PetriNetUnfolder]: 1212/3041 cut-off events. [2021-06-10 12:27:27,889 INFO L130 PetriNetUnfolder]: For 8062/8580 co-relation queries the response was YES. [2021-06-10 12:27:27,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10134 conditions, 3041 events. 1212/3041 cut-off events. For 8062/8580 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 30150 event pairs, 0 based on Foata normal form. 7/2823 useless extension candidates. Maximal degree in co-relation 10066. Up to 410 conditions per place. [2021-06-10 12:27:27,906 INFO L132 encePairwiseOnDemand]: 73/86 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2021-06-10 12:27:27,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 138 transitions, 964 flow [2021-06-10 12:27:27,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-10 12:27:27,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-10 12:27:27,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 546 transitions. [2021-06-10 12:27:27,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7936046511627907 [2021-06-10 12:27:27,907 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 546 transitions. [2021-06-10 12:27:27,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 546 transitions. [2021-06-10 12:27:27,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:27:27,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 546 transitions. [2021-06-10 12:27:27,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.25) internal successors, (546), 8 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:27,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:27,909 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:27,909 INFO L185 Difference]: Start difference. First operand has 144 places, 133 transitions, 854 flow. Second operand 8 states and 546 transitions. [2021-06-10 12:27:27,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 138 transitions, 964 flow [2021-06-10 12:27:28,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 138 transitions, 836 flow, removed 16 selfloop flow, removed 17 redundant places. [2021-06-10 12:27:28,007 INFO L241 Difference]: Finished difference. Result has 130 places, 0 transitions, 0 flow [2021-06-10 12:27:28,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=130, PETRI_TRANSITIONS=0} [2021-06-10 12:27:28,007 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 50 predicate places. [2021-06-10 12:27:28,007 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 0 transitions, 0 flow [2021-06-10 12:27:28,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 67.42857142857143) internal successors, (472), 7 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:27:28,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-10 12:27:28,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 12:27:28 BasicIcfg [2021-06-10 12:27:28,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 12:27:28,011 INFO L168 Benchmark]: Toolchain (without parser) took 5910.71 ms. Allocated memory was 348.1 MB in the beginning and 585.1 MB in the end (delta: 237.0 MB). Free memory was 310.3 MB in the beginning and 283.4 MB in the end (delta: 26.9 MB). Peak memory consumption was 265.8 MB. Max. memory is 16.0 GB. [2021-06-10 12:27:28,012 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 348.1 MB. Free memory is still 328.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 12:27:28,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.94 ms. Allocated memory is still 348.1 MB. Free memory was 310.1 MB in the beginning and 308.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:27:28,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.03 ms. Allocated memory is still 348.1 MB. Free memory was 308.8 MB in the beginning and 306.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:27:28,012 INFO L168 Benchmark]: Boogie Preprocessor took 14.35 ms. Allocated memory is still 348.1 MB. Free memory was 306.8 MB in the beginning and 305.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 12:27:28,012 INFO L168 Benchmark]: RCFGBuilder took 341.00 ms. Allocated memory is still 348.1 MB. Free memory was 305.7 MB in the beginning and 279.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-10 12:27:28,013 INFO L168 Benchmark]: TraceAbstraction took 5199.52 ms. Allocated memory was 348.1 MB in the beginning and 585.1 MB in the end (delta: 237.0 MB). Free memory was 279.5 MB in the beginning and 283.4 MB in the end (delta: -3.9 MB). Peak memory consumption was 235.2 MB. Max. memory is 16.0 GB. [2021-06-10 12:27:28,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 348.1 MB. Free memory is still 328.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 327.94 ms. Allocated memory is still 348.1 MB. Free memory was 310.1 MB in the beginning and 308.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.03 ms. Allocated memory is still 348.1 MB. Free memory was 308.8 MB in the beginning and 306.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.35 ms. Allocated memory is still 348.1 MB. Free memory was 306.8 MB in the beginning and 305.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 341.00 ms. Allocated memory is still 348.1 MB. Free memory was 305.7 MB in the beginning and 279.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5199.52 ms. Allocated memory was 348.1 MB in the beginning and 585.1 MB in the end (delta: 237.0 MB). Free memory was 279.5 MB in the beginning and 283.4 MB in the end (delta: -3.9 MB). Peak memory consumption was 235.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5124.4ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3752.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 38.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 134 SDtfs, 346 SDslu, 442 SDs, 0 SdLazy, 626 SolverSat, 173 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 375.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1184.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1027occurred in iteration=9, InterpolantAutomatonStates: 131, 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: 26.7ms SsaConstructionTime, 213.5ms SatisfiabilityAnalysisTime, 928.1ms InterpolantComputationTime, 619 NumberOfCodeBlocks, 619 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 607 ConstructedInterpolants, 0 QuantifiedInterpolants, 2109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...