/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/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 12:42:28,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 12:42:28,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 12:42:28,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 12:42:28,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 12:42:28,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 12:42:28,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 12:42:28,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 12:42:28,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 12:42:28,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 12:42:28,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 12:42:28,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 12:42:28,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 12:42:28,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 12:42:28,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 12:42:28,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 12:42:28,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 12:42:28,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 12:42:28,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 12:42:28,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 12:42:28,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 12:42:28,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 12:42:28,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 12:42:28,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 12:42:28,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 12:42:28,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 12:42:28,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 12:42:28,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 12:42:28,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 12:42:28,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 12:42:28,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 12:42:28,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 12:42:28,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 12:42:28,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 12:42:28,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 12:42:28,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 12:42:28,894 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 12:42:28,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 12:42:28,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 12:42:28,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 12:42:28,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 12:42:28,930 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 12:42:28,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 12:42:28,930 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 12:42:28,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 12:42:28,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 12:42:28,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 12:42:28,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 12:42:28,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 12:42:28,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 12:42:28,932 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 12:42:28,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 12:42:28,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 12:42:28,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 12:42:28,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 12:42:28,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 12:42:28,933 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 12:42:28,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 12:42:28,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 12:42:28,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 12:42:28,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 12:42:28,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 12:42:28,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 12:42:28,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 12:42:28,934 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 12:42:28,934 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 12:42:28,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 12:42:29,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 12:42:29,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 12:42:29,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 12:42:29,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 12:42:29,289 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 12:42:29,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-06-10 12:42:29,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863efef3d/d82993fdbe584c34b7f1c7bd3cf2921e/FLAGf676afabe [2021-06-10 12:42:29,855 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 12:42:29,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-06-10 12:42:29,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863efef3d/d82993fdbe584c34b7f1c7bd3cf2921e/FLAGf676afabe [2021-06-10 12:42:30,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/863efef3d/d82993fdbe584c34b7f1c7bd3cf2921e [2021-06-10 12:42:30,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 12:42:30,369 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 12:42:30,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 12:42:30,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 12:42:30,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 12:42:30,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:42:30" (1/1) ... [2021-06-10 12:42:30,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2c17bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:30, skipping insertion in model container [2021-06-10 12:42:30,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:42:30" (1/1) ... [2021-06-10 12:42:30,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 12:42:30,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 12:42:30,552 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 12:42:31,127 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-06-10 12:42:31,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:42:31,162 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 12:42:31,172 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 12:42:31,190 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-06-10 12:42:31,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:42:31,452 INFO L208 MainTranslator]: Completed translation [2021-06-10 12:42:31,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31 WrapperNode [2021-06-10 12:42:31,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 12:42:31,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 12:42:31,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 12:42:31,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 12:42:31,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 12:42:31,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 12:42:31,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 12:42:31,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 12:42:31,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (1/1) ... [2021-06-10 12:42:31,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 12:42:31,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 12:42:31,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 12:42:31,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 12:42:31,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (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 12:42:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 12:42:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 12:42:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 12:42:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-10 12:42:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-10 12:42:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 12:42:31,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 12:42:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-10 12:42:31,668 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-10 12:42:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 12:42:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 12:42:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 12:42:31,670 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 12:42:32,336 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 12:42:32,337 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-10 12:42:32,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:42:32 BoogieIcfgContainer [2021-06-10 12:42:32,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 12:42:32,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 12:42:32,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 12:42:32,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 12:42:32,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 12:42:30" (1/3) ... [2021-06-10 12:42:32,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df2f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:42:32, skipping insertion in model container [2021-06-10 12:42:32,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:42:31" (2/3) ... [2021-06-10 12:42:32,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df2f35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:42:32, skipping insertion in model container [2021-06-10 12:42:32,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:42:32" (3/3) ... [2021-06-10 12:42:32,345 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-06-10 12:42:32,352 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 12:42:32,357 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-06-10 12:42:32,358 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 12:42:32,385 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,385 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,385 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,385 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,386 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,386 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,386 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,386 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,386 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,386 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,387 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,387 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,387 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,387 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,387 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,387 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,387 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,387 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,388 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,388 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,388 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,388 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,388 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,388 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,388 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,388 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,389 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,389 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,389 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,389 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,389 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,389 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,389 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,389 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,390 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,390 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,390 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,390 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,390 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,390 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,390 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,390 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,391 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,391 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,391 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,391 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,391 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,391 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,392 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,392 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,392 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,392 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,392 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,392 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,392 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,392 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,393 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,394 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,394 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,394 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,394 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,394 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,394 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,394 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,394 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,395 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,395 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,395 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,395 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,395 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,395 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,395 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,396 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,396 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,396 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,396 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,396 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,396 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,396 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,396 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,397 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,397 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,397 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,397 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,399 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,399 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,399 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,399 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,400 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,400 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,402 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,402 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,403 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,403 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,403 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:42:32,409 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-10 12:42:32,426 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-10 12:42:32,444 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 12:42:32,444 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 12:42:32,444 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 12:42:32,445 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 12:42:32,445 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 12:42:32,445 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 12:42:32,445 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 12:42:32,445 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 12:42:32,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 156 transitions, 334 flow [2021-06-10 12:42:32,542 INFO L129 PetriNetUnfolder]: 11/196 cut-off events. [2021-06-10 12:42:32,542 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 12:42:32,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 196 events. 11/196 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 358 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 111. Up to 4 conditions per place. [2021-06-10 12:42:32,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 156 transitions, 334 flow [2021-06-10 12:42:32,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 144 transitions, 306 flow [2021-06-10 12:42:32,558 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-06-10 12:42:32,559 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:42:32,559 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:32,559 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:42:32,560 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:32,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:32,564 INFO L82 PathProgramCache]: Analyzing trace with hash -582384552, now seen corresponding path program 1 times [2021-06-10 12:42:32,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:32,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243034359] [2021-06-10 12:42:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:32,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:32,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:32,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:32,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 12:42:32,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:32,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:32,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:32,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:32,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:32,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:32,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:32,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:32,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:32,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:32,909 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 12:42:32,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243034359] [2021-06-10 12:42:32,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:32,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:42:32,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019364754] [2021-06-10 12:42:32,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:42:32,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:32,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:42:32,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:42:32,933 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 156 [2021-06-10 12:42:32,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 144 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:42:32,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:32,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 156 [2021-06-10 12:42:32,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:33,339 INFO L129 PetriNetUnfolder]: 362/880 cut-off events. [2021-06-10 12:42:33,339 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-10 12:42:33,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 880 events. 362/880 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4788 event pairs, 213 based on Foata normal form. 20/864 useless extension candidates. Maximal degree in co-relation 1366. Up to 394 conditions per place. [2021-06-10 12:42:33,353 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 50 selfloop transitions, 18 changer transitions 1/142 dead transitions. [2021-06-10 12:42:33,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 142 transitions, 440 flow [2021-06-10 12:42:33,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:42:33,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:42:33,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 821 transitions. [2021-06-10 12:42:33,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5847578347578347 [2021-06-10 12:42:33,374 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 821 transitions. [2021-06-10 12:42:33,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 821 transitions. [2021-06-10 12:42:33,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:33,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 821 transitions. [2021-06-10 12:42:33,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 91.22222222222223) internal successors, (821), 9 states have internal predecessors, (821), 0 states have call successors, (0), 0 states 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 12:42:33,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 156.0) internal successors, (1560), 10 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states 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 12:42:33,391 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 156.0) internal successors, (1560), 10 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states 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 12:42:33,393 INFO L185 Difference]: Start difference. First operand has 142 places, 144 transitions, 306 flow. Second operand 9 states and 821 transitions. [2021-06-10 12:42:33,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 142 transitions, 440 flow [2021-06-10 12:42:33,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 428 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 12:42:33,402 INFO L241 Difference]: Finished difference. Result has 140 places, 135 transitions, 324 flow [2021-06-10 12:42:33,404 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=324, PETRI_PLACES=140, PETRI_TRANSITIONS=135} [2021-06-10 12:42:33,405 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -2 predicate places. [2021-06-10 12:42:33,405 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 135 transitions, 324 flow [2021-06-10 12:42:33,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:42:33,406 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:33,406 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:33,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 12:42:33,406 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:33,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:33,407 INFO L82 PathProgramCache]: Analyzing trace with hash 2135009715, now seen corresponding path program 1 times [2021-06-10 12:42:33,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:33,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485194467] [2021-06-10 12:42:33,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:33,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:33,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:33,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:33,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:33,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:33,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:33,512 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 12:42:33,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485194467] [2021-06-10 12:42:33,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:33,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:42:33,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726233321] [2021-06-10 12:42:33,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:42:33,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:33,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:42:33,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:42:33,520 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 156 [2021-06-10 12:42:33,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 135 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:42:33,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:33,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 156 [2021-06-10 12:42:33,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:33,766 INFO L129 PetriNetUnfolder]: 362/867 cut-off events. [2021-06-10 12:42:33,766 INFO L130 PetriNetUnfolder]: For 84/92 co-relation queries the response was YES. [2021-06-10 12:42:33,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1697 conditions, 867 events. 362/867 cut-off events. For 84/92 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4699 event pairs, 117 based on Foata normal form. 3/854 useless extension candidates. Maximal degree in co-relation 764. Up to 261 conditions per place. [2021-06-10 12:42:33,773 INFO L132 encePairwiseOnDemand]: 136/156 looper letters, 58 selfloop transitions, 19 changer transitions 1/150 dead transitions. [2021-06-10 12:42:33,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 150 transitions, 516 flow [2021-06-10 12:42:33,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:42:33,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:42:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 909 transitions. [2021-06-10 12:42:33,777 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5826923076923077 [2021-06-10 12:42:33,777 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 909 transitions. [2021-06-10 12:42:33,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 909 transitions. [2021-06-10 12:42:33,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:33,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 909 transitions. [2021-06-10 12:42:33,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.9) internal successors, (909), 10 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 12:42:33,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 156.0) internal successors, (1716), 11 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states 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 12:42:33,784 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 156.0) internal successors, (1716), 11 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states 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 12:42:33,784 INFO L185 Difference]: Start difference. First operand has 140 places, 135 transitions, 324 flow. Second operand 10 states and 909 transitions. [2021-06-10 12:42:33,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 150 transitions, 516 flow [2021-06-10 12:42:33,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 486 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-06-10 12:42:33,790 INFO L241 Difference]: Finished difference. Result has 141 places, 134 transitions, 337 flow [2021-06-10 12:42:33,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=337, PETRI_PLACES=141, PETRI_TRANSITIONS=134} [2021-06-10 12:42:33,791 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -1 predicate places. [2021-06-10 12:42:33,791 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 134 transitions, 337 flow [2021-06-10 12:42:33,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:42:33,791 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:33,792 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:33,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 12:42:33,792 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:33,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:33,793 INFO L82 PathProgramCache]: Analyzing trace with hash 653542742, now seen corresponding path program 1 times [2021-06-10 12:42:33,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:33,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686382538] [2021-06-10 12:42:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:33,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:33,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 12:42:33,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:33,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:33,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:33,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:33,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:33,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:42:33,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686382538] [2021-06-10 12:42:33,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:33,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:42:33,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152861096] [2021-06-10 12:42:33,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:42:33,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:33,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:42:33,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:42:33,921 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 156 [2021-06-10 12:42:33,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 134 transitions, 337 flow. Second operand has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:42:33,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:33,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 156 [2021-06-10 12:42:33,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:34,342 INFO L129 PetriNetUnfolder]: 833/1775 cut-off events. [2021-06-10 12:42:34,342 INFO L130 PetriNetUnfolder]: For 222/230 co-relation queries the response was YES. [2021-06-10 12:42:34,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3647 conditions, 1775 events. 833/1775 cut-off events. For 222/230 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 10782 event pairs, 166 based on Foata normal form. 32/1793 useless extension candidates. Maximal degree in co-relation 910. Up to 497 conditions per place. [2021-06-10 12:42:34,356 INFO L132 encePairwiseOnDemand]: 135/156 looper letters, 98 selfloop transitions, 49 changer transitions 0/219 dead transitions. [2021-06-10 12:42:34,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 219 transitions, 839 flow [2021-06-10 12:42:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-10 12:42:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-10 12:42:34,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1198 transitions. [2021-06-10 12:42:34,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5907297830374754 [2021-06-10 12:42:34,360 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1198 transitions. [2021-06-10 12:42:34,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1198 transitions. [2021-06-10 12:42:34,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:34,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1198 transitions. [2021-06-10 12:42:34,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 92.15384615384616) internal successors, (1198), 13 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states 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 12:42:34,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states 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 12:42:34,369 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 156.0) internal successors, (2184), 14 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states 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 12:42:34,369 INFO L185 Difference]: Start difference. First operand has 141 places, 134 transitions, 337 flow. Second operand 13 states and 1198 transitions. [2021-06-10 12:42:34,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 219 transitions, 839 flow [2021-06-10 12:42:34,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 219 transitions, 792 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-06-10 12:42:34,375 INFO L241 Difference]: Finished difference. Result has 153 places, 171 transitions, 618 flow [2021-06-10 12:42:34,376 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=618, PETRI_PLACES=153, PETRI_TRANSITIONS=171} [2021-06-10 12:42:34,376 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 11 predicate places. [2021-06-10 12:42:34,376 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 171 transitions, 618 flow [2021-06-10 12:42:34,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:42:34,377 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:34,377 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:34,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 12:42:34,377 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:34,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:34,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1989630395, now seen corresponding path program 1 times [2021-06-10 12:42:34,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:34,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145471361] [2021-06-10 12:42:34,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:34,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:34,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:34,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:34,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:34,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:34,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:34,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:34,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:34,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:34,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:34,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:34,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:34,490 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 12:42:34,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145471361] [2021-06-10 12:42:34,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:34,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 12:42:34,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198677288] [2021-06-10 12:42:34,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 12:42:34,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:34,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 12:42:34,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-10 12:42:34,494 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 156 [2021-06-10 12:42:34,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 171 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:42:34,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:34,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 156 [2021-06-10 12:42:34,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:35,010 INFO L129 PetriNetUnfolder]: 1082/2247 cut-off events. [2021-06-10 12:42:35,010 INFO L130 PetriNetUnfolder]: For 11410/11448 co-relation queries the response was YES. [2021-06-10 12:42:35,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8897 conditions, 2247 events. 1082/2247 cut-off events. For 11410/11448 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 14401 event pairs, 215 based on Foata normal form. 47/2280 useless extension candidates. Maximal degree in co-relation 7612. Up to 730 conditions per place. [2021-06-10 12:42:35,032 INFO L132 encePairwiseOnDemand]: 137/156 looper letters, 72 selfloop transitions, 48 changer transitions 68/260 dead transitions. [2021-06-10 12:42:35,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 260 transitions, 1726 flow [2021-06-10 12:42:35,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-10 12:42:35,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-10 12:42:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1017 transitions. [2021-06-10 12:42:35,036 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5926573426573427 [2021-06-10 12:42:35,036 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1017 transitions. [2021-06-10 12:42:35,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1017 transitions. [2021-06-10 12:42:35,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:35,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1017 transitions. [2021-06-10 12:42:35,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 92.45454545454545) internal successors, (1017), 11 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states 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 12:42:35,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:42:35,042 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 156.0) internal successors, (1872), 12 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states 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 12:42:35,042 INFO L185 Difference]: Start difference. First operand has 153 places, 171 transitions, 618 flow. Second operand 11 states and 1017 transitions. [2021-06-10 12:42:35,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 260 transitions, 1726 flow [2021-06-10 12:42:35,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 260 transitions, 1704 flow, removed 11 selfloop flow, removed 0 redundant places. [2021-06-10 12:42:35,057 INFO L241 Difference]: Finished difference. Result has 171 places, 178 transitions, 925 flow [2021-06-10 12:42:35,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=925, PETRI_PLACES=171, PETRI_TRANSITIONS=178} [2021-06-10 12:42:35,058 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 29 predicate places. [2021-06-10 12:42:35,058 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 178 transitions, 925 flow [2021-06-10 12:42:35,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:42:35,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:35,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:35,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 12:42:35,059 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:35,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:35,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1440722296, now seen corresponding path program 1 times [2021-06-10 12:42:35,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:35,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922189576] [2021-06-10 12:42:35,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:35,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:35,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:35,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:35,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:35,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:35,126 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 12:42:35,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922189576] [2021-06-10 12:42:35,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:35,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-10 12:42:35,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840216055] [2021-06-10 12:42:35,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 12:42:35,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:35,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 12:42:35,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-10 12:42:35,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 156 [2021-06-10 12:42:35,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 178 transitions, 925 flow. Second operand has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states 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 12:42:35,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:35,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 156 [2021-06-10 12:42:35,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:35,172 INFO L129 PetriNetUnfolder]: 6/143 cut-off events. [2021-06-10 12:42:35,172 INFO L130 PetriNetUnfolder]: For 469/489 co-relation queries the response was YES. [2021-06-10 12:42:35,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 143 events. 6/143 cut-off events. For 469/489 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 225 event pairs, 4 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 323. Up to 14 conditions per place. [2021-06-10 12:42:35,174 INFO L132 encePairwiseOnDemand]: 151/156 looper letters, 5 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2021-06-10 12:42:35,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 111 transitions, 382 flow [2021-06-10 12:42:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 12:42:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 12:42:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 808 transitions. [2021-06-10 12:42:35,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8632478632478633 [2021-06-10 12:42:35,176 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 808 transitions. [2021-06-10 12:42:35,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 808 transitions. [2021-06-10 12:42:35,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:35,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 808 transitions. [2021-06-10 12:42:35,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.66666666666666) internal successors, (808), 6 states have internal predecessors, (808), 0 states have call successors, (0), 0 states 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 12:42:35,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states 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 12:42:35,181 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states 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 12:42:35,181 INFO L185 Difference]: Start difference. First operand has 171 places, 178 transitions, 925 flow. Second operand 6 states and 808 transitions. [2021-06-10 12:42:35,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 111 transitions, 382 flow [2021-06-10 12:42:35,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 111 transitions, 266 flow, removed 40 selfloop flow, removed 17 redundant places. [2021-06-10 12:42:35,184 INFO L241 Difference]: Finished difference. Result has 122 places, 111 transitions, 256 flow [2021-06-10 12:42:35,184 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=122, PETRI_TRANSITIONS=111} [2021-06-10 12:42:35,184 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -20 predicate places. [2021-06-10 12:42:35,185 INFO L480 AbstractCegarLoop]: Abstraction has has 122 places, 111 transitions, 256 flow [2021-06-10 12:42:35,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states 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 12:42:35,185 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:35,185 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:35,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 12:42:35,185 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:35,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:35,186 INFO L82 PathProgramCache]: Analyzing trace with hash -926439458, now seen corresponding path program 1 times [2021-06-10 12:42:35,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:35,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212788243] [2021-06-10 12:42:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:35,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:35,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:35,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:42:35,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:42:35,406 INFO L142 QuantifierPusher]: treesize reduction 25, result has 39.0 percent of original size [2021-06-10 12:42:35,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:42:35,417 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-10 12:42:35,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:42:35,429 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-10 12:42:35,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:42:35,442 INFO L142 QuantifierPusher]: treesize reduction 13, result has 55.2 percent of original size [2021-06-10 12:42:35,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:42:35,455 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-06-10 12:42:35,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:42:35,472 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-06-10 12:42:35,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:42:35,483 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-06-10 12:42:35,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:42:35,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:35,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:35,536 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:35,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:35,538 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:35,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:35,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:35,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:35,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:35,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:35,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:35,582 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 12:42:35,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212788243] [2021-06-10 12:42:35,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:35,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-10 12:42:35,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070888847] [2021-06-10 12:42:35,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 12:42:35,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:35,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 12:42:35,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-06-10 12:42:35,585 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-06-10 12:42:35,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 111 transitions, 256 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:35,587 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:35,587 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-06-10 12:42:35,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:36,405 INFO L129 PetriNetUnfolder]: 338/871 cut-off events. [2021-06-10 12:42:36,405 INFO L130 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2021-06-10 12:42:36,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 871 events. 338/871 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4894 event pairs, 59 based on Foata normal form. 0/858 useless extension candidates. Maximal degree in co-relation 1746. Up to 182 conditions per place. [2021-06-10 12:42:36,411 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 95 selfloop transitions, 28 changer transitions 0/169 dead transitions. [2021-06-10 12:42:36,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 169 transitions, 642 flow [2021-06-10 12:42:36,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-10 12:42:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-10 12:42:36,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1177 transitions. [2021-06-10 12:42:36,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44381598793363497 [2021-06-10 12:42:36,415 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1177 transitions. [2021-06-10 12:42:36,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1177 transitions. [2021-06-10 12:42:36,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:36,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1177 transitions. [2021-06-10 12:42:36,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 69.23529411764706) internal successors, (1177), 17 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states 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 12:42:36,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 156.0) internal successors, (2808), 18 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states 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 12:42:36,423 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 156.0) internal successors, (2808), 18 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states 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 12:42:36,423 INFO L185 Difference]: Start difference. First operand has 122 places, 111 transitions, 256 flow. Second operand 17 states and 1177 transitions. [2021-06-10 12:42:36,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 169 transitions, 642 flow [2021-06-10 12:42:36,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 169 transitions, 635 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 12:42:36,427 INFO L241 Difference]: Finished difference. Result has 142 places, 126 transitions, 402 flow [2021-06-10 12:42:36,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=402, PETRI_PLACES=142, PETRI_TRANSITIONS=126} [2021-06-10 12:42:36,427 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 0 predicate places. [2021-06-10 12:42:36,427 INFO L480 AbstractCegarLoop]: Abstraction has has 142 places, 126 transitions, 402 flow [2021-06-10 12:42:36,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:36,428 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:36,428 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:36,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 12:42:36,429 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:36,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:36,429 INFO L82 PathProgramCache]: Analyzing trace with hash -2055826232, now seen corresponding path program 2 times [2021-06-10 12:42:36,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:36,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978692916] [2021-06-10 12:42:36,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:36,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:36,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:36,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:36,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:36,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:36,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:36,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:36,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:36,661 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:42:36,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:36,674 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:36,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:36,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-10 12:42:36,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:42:36,712 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-10 12:42:36,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:42:36,726 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-06-10 12:42:36,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 12:42:36,743 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-10 12:42:36,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:36,763 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:42:36,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:42:36,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:36,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:36,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:36,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:36,792 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:36,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:36,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:36,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:36,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:36,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:36,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:36,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:36,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:36,849 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 12:42:36,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978692916] [2021-06-10 12:42:36,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:36,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-10 12:42:36,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325732945] [2021-06-10 12:42:36,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 12:42:36,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:36,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 12:42:36,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-10 12:42:36,853 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-06-10 12:42:36,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 126 transitions, 402 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:36,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:36,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-06-10 12:42:36,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:37,722 INFO L129 PetriNetUnfolder]: 419/1150 cut-off events. [2021-06-10 12:42:37,722 INFO L130 PetriNetUnfolder]: For 801/808 co-relation queries the response was YES. [2021-06-10 12:42:37,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2720 conditions, 1150 events. 419/1150 cut-off events. For 801/808 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6865 event pairs, 168 based on Foata normal form. 3/1133 useless extension candidates. Maximal degree in co-relation 2704. Up to 331 conditions per place. [2021-06-10 12:42:37,731 INFO L132 encePairwiseOnDemand]: 134/156 looper letters, 106 selfloop transitions, 31 changer transitions 0/183 dead transitions. [2021-06-10 12:42:37,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 183 transitions, 909 flow [2021-06-10 12:42:37,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-10 12:42:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-10 12:42:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1234 transitions. [2021-06-10 12:42:37,735 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43945868945868943 [2021-06-10 12:42:37,736 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1234 transitions. [2021-06-10 12:42:37,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1234 transitions. [2021-06-10 12:42:37,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:37,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1234 transitions. [2021-06-10 12:42:37,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 68.55555555555556) internal successors, (1234), 18 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states 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 12:42:37,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states 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 12:42:37,743 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states 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 12:42:37,743 INFO L185 Difference]: Start difference. First operand has 142 places, 126 transitions, 402 flow. Second operand 18 states and 1234 transitions. [2021-06-10 12:42:37,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 183 transitions, 909 flow [2021-06-10 12:42:37,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 183 transitions, 889 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-10 12:42:37,749 INFO L241 Difference]: Finished difference. Result has 163 places, 141 transitions, 583 flow [2021-06-10 12:42:37,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=583, PETRI_PLACES=163, PETRI_TRANSITIONS=141} [2021-06-10 12:42:37,750 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 21 predicate places. [2021-06-10 12:42:37,750 INFO L480 AbstractCegarLoop]: Abstraction has has 163 places, 141 transitions, 583 flow [2021-06-10 12:42:37,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:37,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:37,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:37,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 12:42:37,751 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:37,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:37,752 INFO L82 PathProgramCache]: Analyzing trace with hash -850805598, now seen corresponding path program 3 times [2021-06-10 12:42:37,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:37,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977335917] [2021-06-10 12:42:37,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:37,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:37,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:37,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:37,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:37,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:37,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:37,955 INFO L142 QuantifierPusher]: treesize reduction 11, result has 65.6 percent of original size [2021-06-10 12:42:37,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 12:42:37,975 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:42:37,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:37,987 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:42:37,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:38,006 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-10 12:42:38,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:38,031 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-10 12:42:38,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:38,056 INFO L142 QuantifierPusher]: treesize reduction 38, result has 38.7 percent of original size [2021-06-10 12:42:38,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:42:38,079 INFO L142 QuantifierPusher]: treesize reduction 38, result has 46.5 percent of original size [2021-06-10 12:42:38,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-10 12:42:38,106 INFO L142 QuantifierPusher]: treesize reduction 38, result has 51.3 percent of original size [2021-06-10 12:42:38,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-10 12:42:38,127 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-06-10 12:42:38,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:42:38,151 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.7 percent of original size [2021-06-10 12:42:38,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 12:42:38,173 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-06-10 12:42:38,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:42:38,200 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:42:38,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:38,215 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:42:38,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:38,216 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:38,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:38,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:38,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:38,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:38,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:38,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:38,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:38,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:38,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:38,273 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 12:42:38,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977335917] [2021-06-10 12:42:38,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:38,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-10 12:42:38,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956091028] [2021-06-10 12:42:38,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-10 12:42:38,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:38,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-10 12:42:38,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-06-10 12:42:38,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:42:38,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 141 transitions, 583 flow. Second operand has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 12:42:38,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:38,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:42:38,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:40,890 INFO L129 PetriNetUnfolder]: 872/2251 cut-off events. [2021-06-10 12:42:40,890 INFO L130 PetriNetUnfolder]: For 2615/2645 co-relation queries the response was YES. [2021-06-10 12:42:40,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5806 conditions, 2251 events. 872/2251 cut-off events. For 2615/2645 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 16037 event pairs, 87 based on Foata normal form. 12/2226 useless extension candidates. Maximal degree in co-relation 5779. Up to 440 conditions per place. [2021-06-10 12:42:40,905 INFO L132 encePairwiseOnDemand]: 129/156 looper letters, 168 selfloop transitions, 69 changer transitions 0/280 dead transitions. [2021-06-10 12:42:40,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 280 transitions, 1639 flow [2021-06-10 12:42:40,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-10 12:42:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-06-10 12:42:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1858 transitions. [2021-06-10 12:42:40,911 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42536630036630035 [2021-06-10 12:42:40,911 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 1858 transitions. [2021-06-10 12:42:40,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 1858 transitions. [2021-06-10 12:42:40,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:40,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 1858 transitions. [2021-06-10 12:42:40,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 66.35714285714286) internal successors, (1858), 28 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states 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 12:42:40,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states 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 12:42:40,922 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 156.0) internal successors, (4524), 29 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states 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 12:42:40,922 INFO L185 Difference]: Start difference. First operand has 163 places, 141 transitions, 583 flow. Second operand 28 states and 1858 transitions. [2021-06-10 12:42:40,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 280 transitions, 1639 flow [2021-06-10 12:42:40,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 280 transitions, 1604 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-06-10 12:42:40,935 INFO L241 Difference]: Finished difference. Result has 197 places, 181 transitions, 1075 flow [2021-06-10 12:42:40,935 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1075, PETRI_PLACES=197, PETRI_TRANSITIONS=181} [2021-06-10 12:42:40,935 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 55 predicate places. [2021-06-10 12:42:40,935 INFO L480 AbstractCegarLoop]: Abstraction has has 197 places, 181 transitions, 1075 flow [2021-06-10 12:42:40,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 12:42:40,936 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:40,936 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:40,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 12:42:40,937 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:40,937 INFO L82 PathProgramCache]: Analyzing trace with hash 169218088, now seen corresponding path program 4 times [2021-06-10 12:42:40,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:40,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057879769] [2021-06-10 12:42:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:41,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:41,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:41,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:41,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:41,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:41,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:41,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:41,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:41,170 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:42:41,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:41,180 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:41,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:41,196 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:41,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:41,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-10 12:42:41,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:42:41,223 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-06-10 12:42:41,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 12:42:41,236 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-10 12:42:41,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:41,252 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:42:41,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:42:41,260 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:41,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:41,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:41,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:41,286 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:41,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:41,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:41,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:41,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:41,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:41,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:41,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:41,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:41,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:41,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:42:41,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057879769] [2021-06-10 12:42:41,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:41,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-10 12:42:41,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526074102] [2021-06-10 12:42:41,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 12:42:41,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:41,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 12:42:41,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-10 12:42:41,341 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-06-10 12:42:41,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 181 transitions, 1075 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:41,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:41,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-06-10 12:42:41,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:42,341 INFO L129 PetriNetUnfolder]: 792/2390 cut-off events. [2021-06-10 12:42:42,341 INFO L130 PetriNetUnfolder]: For 5168/5216 co-relation queries the response was YES. [2021-06-10 12:42:42,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6843 conditions, 2390 events. 792/2390 cut-off events. For 5168/5216 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 18990 event pairs, 237 based on Foata normal form. 16/2362 useless extension candidates. Maximal degree in co-relation 6805. Up to 668 conditions per place. [2021-06-10 12:42:42,357 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 175 selfloop transitions, 53 changer transitions 0/277 dead transitions. [2021-06-10 12:42:42,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 277 transitions, 2189 flow [2021-06-10 12:42:42,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:42:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:42:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1315 transitions. [2021-06-10 12:42:42,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44365721997300944 [2021-06-10 12:42:42,361 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1315 transitions. [2021-06-10 12:42:42,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1315 transitions. [2021-06-10 12:42:42,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:42,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1315 transitions. [2021-06-10 12:42:42,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 69.21052631578948) internal successors, (1315), 19 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states 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 12:42:42,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:42:42,367 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:42:42,367 INFO L185 Difference]: Start difference. First operand has 197 places, 181 transitions, 1075 flow. Second operand 19 states and 1315 transitions. [2021-06-10 12:42:42,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 277 transitions, 2189 flow [2021-06-10 12:42:42,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 277 transitions, 2142 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-06-10 12:42:42,392 INFO L241 Difference]: Finished difference. Result has 219 places, 204 transitions, 1474 flow [2021-06-10 12:42:42,393 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1041, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1474, PETRI_PLACES=219, PETRI_TRANSITIONS=204} [2021-06-10 12:42:42,393 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 77 predicate places. [2021-06-10 12:42:42,393 INFO L480 AbstractCegarLoop]: Abstraction has has 219 places, 204 transitions, 1474 flow [2021-06-10 12:42:42,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:42,394 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:42,394 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:42,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 12:42:42,394 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:42,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:42,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1501163744, now seen corresponding path program 5 times [2021-06-10 12:42:42,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:42,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600671264] [2021-06-10 12:42:42,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:42,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:42,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:42,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:42,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:42,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:42,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:42,559 INFO L142 QuantifierPusher]: treesize reduction 11, result has 65.6 percent of original size [2021-06-10 12:42:42,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 12:42:42,578 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:42:42,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:42,590 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:42:42,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:42,607 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:42:42,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:42,625 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:42:42,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:42:42,646 INFO L142 QuantifierPusher]: treesize reduction 38, result has 38.7 percent of original size [2021-06-10 12:42:42,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:42:42,669 INFO L142 QuantifierPusher]: treesize reduction 38, result has 46.5 percent of original size [2021-06-10 12:42:42,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-10 12:42:42,696 INFO L142 QuantifierPusher]: treesize reduction 38, result has 51.3 percent of original size [2021-06-10 12:42:42,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-10 12:42:42,714 INFO L142 QuantifierPusher]: treesize reduction 12, result has 69.2 percent of original size [2021-06-10 12:42:42,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:42:42,738 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.7 percent of original size [2021-06-10 12:42:42,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 12:42:42,774 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-06-10 12:42:42,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:42:42,792 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:42:42,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:42,809 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:42:42,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:42,811 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:42,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:42,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:42,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:42,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:42,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:42,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:42,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:42,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:42,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:42,859 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 12:42:42,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600671264] [2021-06-10 12:42:42,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:42,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-10 12:42:42,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468957108] [2021-06-10 12:42:42,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-10 12:42:42,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:42,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-10 12:42:42,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-06-10 12:42:42,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:42:42,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 204 transitions, 1474 flow. Second operand has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 12:42:42,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:42,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:42:42,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:44,868 INFO L129 PetriNetUnfolder]: 1706/4677 cut-off events. [2021-06-10 12:42:44,868 INFO L130 PetriNetUnfolder]: For 14357/14462 co-relation queries the response was YES. [2021-06-10 12:42:44,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14568 conditions, 4677 events. 1706/4677 cut-off events. For 14357/14462 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 41889 event pairs, 327 based on Foata normal form. 44/4629 useless extension candidates. Maximal degree in co-relation 14520. Up to 1292 conditions per place. [2021-06-10 12:42:44,903 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 212 selfloop transitions, 75 changer transitions 0/330 dead transitions. [2021-06-10 12:42:44,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 330 transitions, 3047 flow [2021-06-10 12:42:44,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:42:44,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:42:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1276 transitions. [2021-06-10 12:42:44,906 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43049932523616735 [2021-06-10 12:42:44,906 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1276 transitions. [2021-06-10 12:42:44,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1276 transitions. [2021-06-10 12:42:44,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:44,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1276 transitions. [2021-06-10 12:42:44,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 67.15789473684211) internal successors, (1276), 19 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states 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 12:42:44,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:42:44,912 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:42:44,912 INFO L185 Difference]: Start difference. First operand has 219 places, 204 transitions, 1474 flow. Second operand 19 states and 1276 transitions. [2021-06-10 12:42:44,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 330 transitions, 3047 flow [2021-06-10 12:42:44,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 330 transitions, 2950 flow, removed 41 selfloop flow, removed 5 redundant places. [2021-06-10 12:42:44,982 INFO L241 Difference]: Finished difference. Result has 242 places, 241 transitions, 2099 flow [2021-06-10 12:42:44,982 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=1405, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2099, PETRI_PLACES=242, PETRI_TRANSITIONS=241} [2021-06-10 12:42:44,982 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 100 predicate places. [2021-06-10 12:42:44,982 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 241 transitions, 2099 flow [2021-06-10 12:42:44,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 12:42:44,983 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:44,983 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:44,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-10 12:42:44,984 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:44,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:44,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1314381074, now seen corresponding path program 6 times [2021-06-10 12:42:44,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:44,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926667338] [2021-06-10 12:42:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:45,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:45,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:45,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:45,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:45,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:45,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:45,141 INFO L142 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size [2021-06-10 12:42:45,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-10 12:42:45,161 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:45,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:45,173 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:45,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:45,187 INFO L142 QuantifierPusher]: treesize reduction 15, result has 50.0 percent of original size [2021-06-10 12:42:45,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:45,201 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-06-10 12:42:45,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 12:42:45,212 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:42:45,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:45,227 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-06-10 12:42:45,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:42:45,235 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:45,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:45,246 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:45,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:45,247 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:45,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:45,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:45,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:45,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:45,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:45,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:45,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:45,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:45,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:45,282 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 12:42:45,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926667338] [2021-06-10 12:42:45,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:45,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-10 12:42:45,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660906720] [2021-06-10 12:42:45,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 12:42:45,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:45,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 12:42:45,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-10 12:42:45,284 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-06-10 12:42:45,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 241 transitions, 2099 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:45,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:45,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-06-10 12:42:45,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:46,500 INFO L129 PetriNetUnfolder]: 1405/4337 cut-off events. [2021-06-10 12:42:46,500 INFO L130 PetriNetUnfolder]: For 15481/15630 co-relation queries the response was YES. [2021-06-10 12:42:46,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13771 conditions, 4337 events. 1405/4337 cut-off events. For 15481/15630 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 40683 event pairs, 133 based on Foata normal form. 80/4377 useless extension candidates. Maximal degree in co-relation 13713. Up to 946 conditions per place. [2021-06-10 12:42:46,530 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 165 selfloop transitions, 121 changer transitions 0/336 dead transitions. [2021-06-10 12:42:46,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 336 transitions, 3433 flow [2021-06-10 12:42:46,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:42:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:42:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1326 transitions. [2021-06-10 12:42:46,533 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2021-06-10 12:42:46,533 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1326 transitions. [2021-06-10 12:42:46,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1326 transitions. [2021-06-10 12:42:46,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:46,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1326 transitions. [2021-06-10 12:42:46,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 69.78947368421052) internal successors, (1326), 19 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states 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 12:42:46,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:42:46,539 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:42:46,539 INFO L185 Difference]: Start difference. First operand has 242 places, 241 transitions, 2099 flow. Second operand 19 states and 1326 transitions. [2021-06-10 12:42:46,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 336 transitions, 3433 flow [2021-06-10 12:42:46,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 336 transitions, 3368 flow, removed 25 selfloop flow, removed 5 redundant places. [2021-06-10 12:42:46,622 INFO L241 Difference]: Finished difference. Result has 262 places, 272 transitions, 2901 flow [2021-06-10 12:42:46,623 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=2038, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2901, PETRI_PLACES=262, PETRI_TRANSITIONS=272} [2021-06-10 12:42:46,623 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 120 predicate places. [2021-06-10 12:42:46,623 INFO L480 AbstractCegarLoop]: Abstraction has has 262 places, 272 transitions, 2901 flow [2021-06-10 12:42:46,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:46,624 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:46,624 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:46,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-10 12:42:46,624 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:46,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:46,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1792945168, now seen corresponding path program 7 times [2021-06-10 12:42:46,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:46,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295178602] [2021-06-10 12:42:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:46,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:46,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:46,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:46,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:46,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:46,791 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:42:46,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:46,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:46,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:46,813 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:42:46,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:46,830 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:42:46,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:46,849 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-10 12:42:46,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:46,869 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:42:46,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:42:46,892 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-06-10 12:42:46,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-10 12:42:46,919 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-06-10 12:42:46,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-10 12:42:46,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-06-10 12:42:46,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 12:42:46,960 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-10 12:42:46,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:42:46,981 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:46,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:46,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:46,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:46,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:46,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:47,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:47,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:47,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:47,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:47,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:47,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:47,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:47,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:47,047 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 12:42:47,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295178602] [2021-06-10 12:42:47,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:47,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:42:47,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103363635] [2021-06-10 12:42:47,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:42:47,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:47,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:42:47,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:42:47,050 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:42:47,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 272 transitions, 2901 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:42:47,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:47,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:42:47,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:49,933 INFO L129 PetriNetUnfolder]: 1717/4942 cut-off events. [2021-06-10 12:42:49,934 INFO L130 PetriNetUnfolder]: For 25731/25928 co-relation queries the response was YES. [2021-06-10 12:42:49,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17390 conditions, 4942 events. 1717/4942 cut-off events. For 25731/25928 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 45264 event pairs, 312 based on Foata normal form. 90/4947 useless extension candidates. Maximal degree in co-relation 17324. Up to 1051 conditions per place. [2021-06-10 12:42:49,969 INFO L132 encePairwiseOnDemand]: 129/156 looper letters, 256 selfloop transitions, 123 changer transitions 0/422 dead transitions. [2021-06-10 12:42:49,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 422 transitions, 5034 flow [2021-06-10 12:42:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-10 12:42:49,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-06-10 12:42:49,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1730 transitions. [2021-06-10 12:42:49,973 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4265285996055227 [2021-06-10 12:42:49,973 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1730 transitions. [2021-06-10 12:42:49,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1730 transitions. [2021-06-10 12:42:49,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:49,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1730 transitions. [2021-06-10 12:42:49,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 66.53846153846153) internal successors, (1730), 26 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states 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 12:42:49,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 156.0) internal successors, (4212), 27 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states 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 12:42:49,980 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 156.0) internal successors, (4212), 27 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states 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 12:42:49,980 INFO L185 Difference]: Start difference. First operand has 262 places, 272 transitions, 2901 flow. Second operand 26 states and 1730 transitions. [2021-06-10 12:42:49,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 422 transitions, 5034 flow [2021-06-10 12:42:50,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 422 transitions, 4898 flow, removed 41 selfloop flow, removed 7 redundant places. [2021-06-10 12:42:50,163 INFO L241 Difference]: Finished difference. Result has 291 places, 321 transitions, 4049 flow [2021-06-10 12:42:50,163 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=2803, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4049, PETRI_PLACES=291, PETRI_TRANSITIONS=321} [2021-06-10 12:42:50,164 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 149 predicate places. [2021-06-10 12:42:50,164 INFO L480 AbstractCegarLoop]: Abstraction has has 291 places, 321 transitions, 4049 flow [2021-06-10 12:42:50,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:42:50,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:50,164 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:50,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-10 12:42:50,165 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:50,165 INFO L82 PathProgramCache]: Analyzing trace with hash 2043826806, now seen corresponding path program 8 times [2021-06-10 12:42:50,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:50,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914847861] [2021-06-10 12:42:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:50,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:50,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:50,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:50,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:50,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:50,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:50,330 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:42:50,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:50,341 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:50,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:50,353 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:42:50,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:50,371 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:42:50,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:42:50,389 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:42:50,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:42:50,409 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:42:50,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:42:50,429 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-06-10 12:42:50,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-10 12:42:50,455 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-06-10 12:42:50,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-10 12:42:50,470 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-06-10 12:42:50,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 12:42:50,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-10 12:42:50,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:42:50,507 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:50,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:50,517 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:50,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:50,518 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:50,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:50,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:50,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:50,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:50,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:50,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:50,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:50,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:50,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:50,559 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 12:42:50,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914847861] [2021-06-10 12:42:50,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:50,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:42:50,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877720175] [2021-06-10 12:42:50,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:42:50,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:50,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:42:50,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:42:50,561 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:42:50,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 321 transitions, 4049 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:42:50,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:50,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:42:50,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:51,447 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-06-10 12:42:52,898 INFO L129 PetriNetUnfolder]: 2044/5899 cut-off events. [2021-06-10 12:42:52,898 INFO L130 PetriNetUnfolder]: For 37482/37699 co-relation queries the response was YES. [2021-06-10 12:42:52,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21894 conditions, 5899 events. 2044/5899 cut-off events. For 37482/37699 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 56435 event pairs, 632 based on Foata normal form. 61/5832 useless extension candidates. Maximal degree in co-relation 21818. Up to 2752 conditions per place. [2021-06-10 12:42:52,946 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 297 selfloop transitions, 112 changer transitions 0/452 dead transitions. [2021-06-10 12:42:52,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 452 transitions, 6406 flow [2021-06-10 12:42:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:42:52,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:42:52,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1270 transitions. [2021-06-10 12:42:52,948 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4284750337381916 [2021-06-10 12:42:52,948 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1270 transitions. [2021-06-10 12:42:52,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1270 transitions. [2021-06-10 12:42:52,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:52,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1270 transitions. [2021-06-10 12:42:52,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 66.84210526315789) internal successors, (1270), 19 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states 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 12:42:52,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:42:52,954 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:42:52,954 INFO L185 Difference]: Start difference. First operand has 291 places, 321 transitions, 4049 flow. Second operand 19 states and 1270 transitions. [2021-06-10 12:42:52,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 452 transitions, 6406 flow [2021-06-10 12:42:53,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 452 transitions, 6232 flow, removed 68 selfloop flow, removed 6 redundant places. [2021-06-10 12:42:53,203 INFO L241 Difference]: Finished difference. Result has 313 places, 360 transitions, 4998 flow [2021-06-10 12:42:53,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=3912, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4998, PETRI_PLACES=313, PETRI_TRANSITIONS=360} [2021-06-10 12:42:53,203 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 171 predicate places. [2021-06-10 12:42:53,204 INFO L480 AbstractCegarLoop]: Abstraction has has 313 places, 360 transitions, 4998 flow [2021-06-10 12:42:53,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:42:53,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:53,205 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:53,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-10 12:42:53,205 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:53,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1937456280, now seen corresponding path program 9 times [2021-06-10 12:42:53,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:53,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252338096] [2021-06-10 12:42:53,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:53,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:53,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:53,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:53,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:53,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:53,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:53,407 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-06-10 12:42:53,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:42:53,426 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:53,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:53,437 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-06-10 12:42:53,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:42:53,448 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-06-10 12:42:53,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:42:53,466 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-06-10 12:42:53,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 12:42:53,479 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:42:53,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:53,496 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-06-10 12:42:53,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:42:53,506 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:53,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:53,520 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:53,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:53,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:53,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:53,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:53,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:53,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:53,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:53,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:53,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:53,568 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 12:42:53,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252338096] [2021-06-10 12:42:53,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:53,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-10 12:42:53,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977807187] [2021-06-10 12:42:53,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 12:42:53,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:53,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 12:42:53,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-10 12:42:53,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-06-10 12:42:53,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 360 transitions, 4998 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:53,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:53,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-06-10 12:42:53,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:55,606 INFO L129 PetriNetUnfolder]: 2264/7326 cut-off events. [2021-06-10 12:42:55,606 INFO L130 PetriNetUnfolder]: For 53288/53679 co-relation queries the response was YES. [2021-06-10 12:42:55,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26622 conditions, 7326 events. 2264/7326 cut-off events. For 53288/53679 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 77008 event pairs, 862 based on Foata normal form. 162/7341 useless extension candidates. Maximal degree in co-relation 26536. Up to 2283 conditions per place. [2021-06-10 12:42:55,665 INFO L132 encePairwiseOnDemand]: 134/156 looper letters, 342 selfloop transitions, 123 changer transitions 0/522 dead transitions. [2021-06-10 12:42:55,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 522 transitions, 8257 flow [2021-06-10 12:42:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-10 12:42:55,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-10 12:42:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1234 transitions. [2021-06-10 12:42:55,668 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43945868945868943 [2021-06-10 12:42:55,668 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1234 transitions. [2021-06-10 12:42:55,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1234 transitions. [2021-06-10 12:42:55,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:55,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1234 transitions. [2021-06-10 12:42:55,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 68.55555555555556) internal successors, (1234), 18 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states 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 12:42:55,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states 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 12:42:55,673 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 156.0) internal successors, (2964), 19 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states 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 12:42:55,673 INFO L185 Difference]: Start difference. First operand has 313 places, 360 transitions, 4998 flow. Second operand 18 states and 1234 transitions. [2021-06-10 12:42:55,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 522 transitions, 8257 flow [2021-06-10 12:42:55,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 522 transitions, 8049 flow, removed 78 selfloop flow, removed 6 redundant places. [2021-06-10 12:42:55,915 INFO L241 Difference]: Finished difference. Result has 334 places, 406 transitions, 5978 flow [2021-06-10 12:42:55,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=4835, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5978, PETRI_PLACES=334, PETRI_TRANSITIONS=406} [2021-06-10 12:42:55,916 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 192 predicate places. [2021-06-10 12:42:55,916 INFO L480 AbstractCegarLoop]: Abstraction has has 334 places, 406 transitions, 5978 flow [2021-06-10 12:42:55,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:55,916 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:55,916 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:55,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-10 12:42:55,917 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:55,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:55,917 INFO L82 PathProgramCache]: Analyzing trace with hash -992639398, now seen corresponding path program 10 times [2021-06-10 12:42:55,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:55,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482023095] [2021-06-10 12:42:55,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:56,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:56,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:56,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:56,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:56,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:56,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:56,059 INFO L142 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size [2021-06-10 12:42:56,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-10 12:42:56,078 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:56,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:56,090 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:56,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:56,102 INFO L142 QuantifierPusher]: treesize reduction 15, result has 50.0 percent of original size [2021-06-10 12:42:56,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:56,116 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:42:56,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:42:56,132 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-06-10 12:42:56,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 12:42:56,143 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-06-10 12:42:56,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:42:56,157 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:56,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:56,169 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:42:56,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:56,170 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:56,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:56,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:56,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:56,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:56,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:56,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:56,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:56,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:56,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:56,211 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 12:42:56,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482023095] [2021-06-10 12:42:56,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:56,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-10 12:42:56,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840483216] [2021-06-10 12:42:56,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 12:42:56,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:56,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 12:42:56,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-06-10 12:42:56,213 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-06-10 12:42:56,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 406 transitions, 5978 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:56,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:56,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-06-10 12:42:56,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:42:58,705 INFO L129 PetriNetUnfolder]: 2863/9279 cut-off events. [2021-06-10 12:42:58,705 INFO L130 PetriNetUnfolder]: For 72242/72866 co-relation queries the response was YES. [2021-06-10 12:42:58,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35218 conditions, 9279 events. 2863/9279 cut-off events. For 72242/72866 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 104057 event pairs, 586 based on Foata normal form. 288/9349 useless extension candidates. Maximal degree in co-relation 35121. Up to 2633 conditions per place. [2021-06-10 12:42:58,789 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 369 selfloop transitions, 184 changer transitions 0/610 dead transitions. [2021-06-10 12:42:58,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 610 transitions, 10349 flow [2021-06-10 12:42:58,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-10 12:42:58,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-10 12:42:58,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1174 transitions. [2021-06-10 12:42:58,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44268476621417796 [2021-06-10 12:42:58,791 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1174 transitions. [2021-06-10 12:42:58,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1174 transitions. [2021-06-10 12:42:58,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:42:58,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1174 transitions. [2021-06-10 12:42:58,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 69.05882352941177) internal successors, (1174), 17 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states 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 12:42:58,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 156.0) internal successors, (2808), 18 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states 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 12:42:58,796 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 156.0) internal successors, (2808), 18 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states 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 12:42:58,796 INFO L185 Difference]: Start difference. First operand has 334 places, 406 transitions, 5978 flow. Second operand 17 states and 1174 transitions. [2021-06-10 12:42:58,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 610 transitions, 10349 flow [2021-06-10 12:42:59,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 610 transitions, 10242 flow, removed 47 selfloop flow, removed 5 redundant places. [2021-06-10 12:42:59,202 INFO L241 Difference]: Finished difference. Result has 353 places, 487 transitions, 8037 flow [2021-06-10 12:42:59,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=5871, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8037, PETRI_PLACES=353, PETRI_TRANSITIONS=487} [2021-06-10 12:42:59,203 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 211 predicate places. [2021-06-10 12:42:59,203 INFO L480 AbstractCegarLoop]: Abstraction has has 353 places, 487 transitions, 8037 flow [2021-06-10 12:42:59,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:42:59,203 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:42:59,204 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:42:59,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-10 12:42:59,204 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:42:59,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:42:59,204 INFO L82 PathProgramCache]: Analyzing trace with hash 832450406, now seen corresponding path program 11 times [2021-06-10 12:42:59,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:42:59,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744402166] [2021-06-10 12:42:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:42:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:42:59,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:59,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:59,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:59,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:59,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:59,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:42:59,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:59,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:59,364 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:42:59,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:42:59,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:59,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:59,386 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:42:59,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:59,402 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:42:59,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:42:59,420 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:42:59,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:42:59,437 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:42:59,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:42:59,455 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:42:59,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:42:59,474 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:42:59,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:42:59,497 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:42:59,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:42:59,511 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:42:59,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:42:59,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:59,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:59,550 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:42:59,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:42:59,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:42:59,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:42:59,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:59,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:42:59,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:59,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:59,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:59,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:42:59,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:42:59,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:42:59,612 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 12:42:59,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744402166] [2021-06-10 12:42:59,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:42:59,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:42:59,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857748160] [2021-06-10 12:42:59,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:42:59,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:42:59,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:42:59,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:42:59,617 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:42:59,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 487 transitions, 8037 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:42:59,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:42:59,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:42:59,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:43:00,616 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-06-10 12:43:02,881 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2021-06-10 12:43:03,263 INFO L129 PetriNetUnfolder]: 3177/9895 cut-off events. [2021-06-10 12:43:03,263 INFO L130 PetriNetUnfolder]: For 85918/86624 co-relation queries the response was YES. [2021-06-10 12:43:03,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41986 conditions, 9895 events. 3177/9895 cut-off events. For 85918/86624 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 108941 event pairs, 966 based on Foata normal form. 138/9796 useless extension candidates. Maximal degree in co-relation 41882. Up to 3683 conditions per place. [2021-06-10 12:43:03,384 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 400 selfloop transitions, 183 changer transitions 0/626 dead transitions. [2021-06-10 12:43:03,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 626 transitions, 10819 flow [2021-06-10 12:43:03,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:43:03,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:43:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1397 transitions. [2021-06-10 12:43:03,409 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4264346764346764 [2021-06-10 12:43:03,409 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1397 transitions. [2021-06-10 12:43:03,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1397 transitions. [2021-06-10 12:43:03,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:43:03,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1397 transitions. [2021-06-10 12:43:03,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.52380952380952) internal successors, (1397), 21 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states 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 12:43:03,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:43:03,430 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:43:03,430 INFO L185 Difference]: Start difference. First operand has 353 places, 487 transitions, 8037 flow. Second operand 21 states and 1397 transitions. [2021-06-10 12:43:03,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 626 transitions, 10819 flow [2021-06-10 12:43:03,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 626 transitions, 10650 flow, removed 54 selfloop flow, removed 6 redundant places. [2021-06-10 12:43:03,965 INFO L241 Difference]: Finished difference. Result has 376 places, 521 transitions, 9102 flow [2021-06-10 12:43:03,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=7885, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9102, PETRI_PLACES=376, PETRI_TRANSITIONS=521} [2021-06-10 12:43:03,965 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 234 predicate places. [2021-06-10 12:43:03,966 INFO L480 AbstractCegarLoop]: Abstraction has has 376 places, 521 transitions, 9102 flow [2021-06-10 12:43:03,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:03,966 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:43:03,966 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:03,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-10 12:43:03,966 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:43:03,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:43:03,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1770310272, now seen corresponding path program 12 times [2021-06-10 12:43:03,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:43:03,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778032375] [2021-06-10 12:43:03,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:43:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:43:04,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:04,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:04,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:04,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:04,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:04,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-10 12:43:04,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:04,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:43:04,197 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-06-10 12:43:04,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:04,215 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-06-10 12:43:04,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:43:04,231 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-06-10 12:43:04,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:43:04,244 INFO L142 QuantifierPusher]: treesize reduction 15, result has 51.6 percent of original size [2021-06-10 12:43:04,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:43:04,257 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-06-10 12:43:04,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 12:43:04,269 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:43:04,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:04,283 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-06-10 12:43:04,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:43:04,294 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:43:04,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:04,307 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:43:04,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:43:04,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:04,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:43:04,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:04,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:04,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:04,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:04,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:04,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:04,348 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 12:43:04,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778032375] [2021-06-10 12:43:04,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:43:04,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-10 12:43:04,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747684030] [2021-06-10 12:43:04,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 12:43:04,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:43:04,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 12:43:04,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-10 12:43:04,351 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-06-10 12:43:04,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 521 transitions, 9102 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:43:04,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:43:04,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-06-10 12:43:04,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:43:07,666 INFO L129 PetriNetUnfolder]: 3372/11520 cut-off events. [2021-06-10 12:43:07,666 INFO L130 PetriNetUnfolder]: For 116716/117617 co-relation queries the response was YES. [2021-06-10 12:43:07,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48377 conditions, 11520 events. 3372/11520 cut-off events. For 116716/117617 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 137471 event pairs, 517 based on Foata normal form. 458/11731 useless extension candidates. Maximal degree in co-relation 48263. Up to 2355 conditions per place. [2021-06-10 12:43:07,783 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 494 selfloop transitions, 286 changer transitions 0/837 dead transitions. [2021-06-10 12:43:07,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 837 transitions, 16357 flow [2021-06-10 12:43:07,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:43:07,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:43:07,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1323 transitions. [2021-06-10 12:43:07,785 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44635627530364375 [2021-06-10 12:43:07,785 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1323 transitions. [2021-06-10 12:43:07,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1323 transitions. [2021-06-10 12:43:07,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:43:07,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1323 transitions. [2021-06-10 12:43:07,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 69.63157894736842) internal successors, (1323), 19 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states 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 12:43:07,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:43:07,790 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:43:07,790 INFO L185 Difference]: Start difference. First operand has 376 places, 521 transitions, 9102 flow. Second operand 19 states and 1323 transitions. [2021-06-10 12:43:07,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 837 transitions, 16357 flow [2021-06-10 12:43:08,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 837 transitions, 16112 flow, removed 55 selfloop flow, removed 8 redundant places. [2021-06-10 12:43:08,405 INFO L241 Difference]: Finished difference. Result has 395 places, 633 transitions, 12643 flow [2021-06-10 12:43:08,406 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=8912, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12643, PETRI_PLACES=395, PETRI_TRANSITIONS=633} [2021-06-10 12:43:08,406 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 253 predicate places. [2021-06-10 12:43:08,406 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 633 transitions, 12643 flow [2021-06-10 12:43:08,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:43:08,407 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:43:08,407 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:08,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-10 12:43:08,407 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:43:08,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:43:08,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1825072326, now seen corresponding path program 13 times [2021-06-10 12:43:08,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:43:08,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277352921] [2021-06-10 12:43:08,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:43:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:43:08,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:08,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:08,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:08,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:43:08,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:08,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:08,610 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-06-10 12:43:08,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:43:08,631 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:43:08,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:08,643 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:43:08,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:08,656 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-06-10 12:43:08,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:43:08,669 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-06-10 12:43:08,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 12:43:08,683 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:43:08,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:08,700 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-06-10 12:43:08,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:43:08,711 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:43:08,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:08,725 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:43:08,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:43:08,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:08,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:43:08,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:08,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:08,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:08,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:08,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:08,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:08,772 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 12:43:08,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277352921] [2021-06-10 12:43:08,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:43:08,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-10 12:43:08,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158965200] [2021-06-10 12:43:08,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-10 12:43:08,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:43:08,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-10 12:43:08,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-10 12:43:08,774 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 156 [2021-06-10 12:43:08,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 633 transitions, 12643 flow. Second operand has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:43:08,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:43:08,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 156 [2021-06-10 12:43:08,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:43:12,335 INFO L129 PetriNetUnfolder]: 3385/11916 cut-off events. [2021-06-10 12:43:12,335 INFO L130 PetriNetUnfolder]: For 149928/150855 co-relation queries the response was YES. [2021-06-10 12:43:12,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53629 conditions, 11916 events. 3385/11916 cut-off events. For 149928/150855 co-relation queries the response was YES. Maximal size of possible extension queue 787. Compared 142296 event pairs, 1436 based on Foata normal form. 417/12055 useless extension candidates. Maximal degree in co-relation 53506. Up to 3130 conditions per place. [2021-06-10 12:43:12,505 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 536 selfloop transitions, 271 changer transitions 0/864 dead transitions. [2021-06-10 12:43:12,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 864 transitions, 18412 flow [2021-06-10 12:43:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:43:12,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:43:12,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1314 transitions. [2021-06-10 12:43:12,515 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4433198380566802 [2021-06-10 12:43:12,515 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1314 transitions. [2021-06-10 12:43:12,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1314 transitions. [2021-06-10 12:43:12,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:43:12,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1314 transitions. [2021-06-10 12:43:12,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 69.15789473684211) internal successors, (1314), 19 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states 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 12:43:12,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:43:12,519 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:43:12,519 INFO L185 Difference]: Start difference. First operand has 395 places, 633 transitions, 12643 flow. Second operand 19 states and 1314 transitions. [2021-06-10 12:43:12,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 864 transitions, 18412 flow [2021-06-10 12:43:13,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 864 transitions, 18132 flow, removed 111 selfloop flow, removed 6 redundant places. [2021-06-10 12:43:13,365 INFO L241 Difference]: Finished difference. Result has 417 places, 699 transitions, 15134 flow [2021-06-10 12:43:13,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=12411, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=15134, PETRI_PLACES=417, PETRI_TRANSITIONS=699} [2021-06-10 12:43:13,365 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 275 predicate places. [2021-06-10 12:43:13,365 INFO L480 AbstractCegarLoop]: Abstraction has has 417 places, 699 transitions, 15134 flow [2021-06-10 12:43:13,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states 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 12:43:13,366 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:43:13,366 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:13,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-10 12:43:13,366 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:43:13,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:43:13,366 INFO L82 PathProgramCache]: Analyzing trace with hash 140684552, now seen corresponding path program 14 times [2021-06-10 12:43:13,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:43:13,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757992943] [2021-06-10 12:43:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:43:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:43:13,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:13,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:13,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:13,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:13,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:13,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:43:13,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:13,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:13,516 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:43:13,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:13,527 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:13,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:13,539 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:13,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:13,556 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-10 12:43:13,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:13,575 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-10 12:43:13,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:13,594 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:43:13,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:43:13,615 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:43:13,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:13,634 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:43:13,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:43:13,656 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:43:13,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:43:13,668 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:43:13,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:43:13,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:13,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:13,702 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:13,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:13,704 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:43:13,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:43:13,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:13,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:43:13,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:13,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:13,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:13,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:13,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:13,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:13,757 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 12:43:13,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757992943] [2021-06-10 12:43:13,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:43:13,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:43:13,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63412248] [2021-06-10 12:43:13,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:43:13,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:43:13,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:43:13,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:43:13,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:43:13,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 699 transitions, 15134 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:13,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:43:13,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:43:13,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:43:19,566 INFO L129 PetriNetUnfolder]: 3747/12616 cut-off events. [2021-06-10 12:43:19,566 INFO L130 PetriNetUnfolder]: For 156762/157708 co-relation queries the response was YES. [2021-06-10 12:43:19,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59159 conditions, 12616 events. 3747/12616 cut-off events. For 156762/157708 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 149548 event pairs, 544 based on Foata normal form. 403/12757 useless extension candidates. Maximal degree in co-relation 59025. Up to 2957 conditions per place. [2021-06-10 12:43:19,765 INFO L132 encePairwiseOnDemand]: 129/156 looper letters, 448 selfloop transitions, 404 changer transitions 0/895 dead transitions. [2021-06-10 12:43:19,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 895 transitions, 19355 flow [2021-06-10 12:43:19,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-10 12:43:19,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-06-10 12:43:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1924 transitions. [2021-06-10 12:43:19,767 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42528735632183906 [2021-06-10 12:43:19,767 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1924 transitions. [2021-06-10 12:43:19,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1924 transitions. [2021-06-10 12:43:19,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:43:19,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1924 transitions. [2021-06-10 12:43:19,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 66.34482758620689) internal successors, (1924), 29 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states 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 12:43:19,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 156.0) internal successors, (4680), 30 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states 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 12:43:19,773 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 156.0) internal successors, (4680), 30 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states 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 12:43:19,773 INFO L185 Difference]: Start difference. First operand has 417 places, 699 transitions, 15134 flow. Second operand 29 states and 1924 transitions. [2021-06-10 12:43:19,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 895 transitions, 19355 flow [2021-06-10 12:43:20,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 895 transitions, 18928 flow, removed 131 selfloop flow, removed 7 redundant places. [2021-06-10 12:43:20,919 INFO L241 Difference]: Finished difference. Result has 446 places, 732 transitions, 16855 flow [2021-06-10 12:43:20,919 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=14788, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=371, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=16855, PETRI_PLACES=446, PETRI_TRANSITIONS=732} [2021-06-10 12:43:20,920 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 304 predicate places. [2021-06-10 12:43:20,920 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 732 transitions, 16855 flow [2021-06-10 12:43:20,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:20,920 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:43:20,920 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:20,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-10 12:43:20,921 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:43:20,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:43:20,921 INFO L82 PathProgramCache]: Analyzing trace with hash 994796840, now seen corresponding path program 15 times [2021-06-10 12:43:20,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:43:20,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915371575] [2021-06-10 12:43:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:43:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:43:21,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:21,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:21,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:21,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:43:21,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:21,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:21,066 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:43:21,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:21,077 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:21,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:21,089 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:21,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:21,106 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:21,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:21,124 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:43:21,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:43:21,143 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:43:21,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:43:21,164 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-06-10 12:43:21,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-10 12:43:21,189 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-06-10 12:43:21,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-10 12:43:21,204 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-06-10 12:43:21,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 12:43:21,226 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-10 12:43:21,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:43:21,246 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:21,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:21,260 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:21,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:21,262 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:43:21,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:43:21,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:21,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:43:21,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:21,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:21,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:21,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:21,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:21,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:21,315 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 12:43:21,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915371575] [2021-06-10 12:43:21,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:43:21,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:43:21,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222685032] [2021-06-10 12:43:21,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:43:21,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:43:21,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:43:21,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:43:21,318 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:43:21,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 732 transitions, 16855 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:21,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:43:21,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:43:21,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:43:27,142 INFO L129 PetriNetUnfolder]: 4193/14166 cut-off events. [2021-06-10 12:43:27,142 INFO L130 PetriNetUnfolder]: For 190032/190812 co-relation queries the response was YES. [2021-06-10 12:43:27,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67911 conditions, 14166 events. 4193/14166 cut-off events. For 190032/190812 co-relation queries the response was YES. Maximal size of possible extension queue 910. Compared 171940 event pairs, 1661 based on Foata normal form. 169/14010 useless extension candidates. Maximal degree in co-relation 67771. Up to 4520 conditions per place. [2021-06-10 12:43:27,351 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 638 selfloop transitions, 286 changer transitions 0/967 dead transitions. [2021-06-10 12:43:27,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 967 transitions, 22865 flow [2021-06-10 12:43:27,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:43:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:43:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1279 transitions. [2021-06-10 12:43:27,353 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4315114709851552 [2021-06-10 12:43:27,353 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1279 transitions. [2021-06-10 12:43:27,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1279 transitions. [2021-06-10 12:43:27,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:43:27,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1279 transitions. [2021-06-10 12:43:27,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 67.3157894736842) internal successors, (1279), 19 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states 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 12:43:27,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:43:27,357 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:43:27,357 INFO L185 Difference]: Start difference. First operand has 446 places, 732 transitions, 16855 flow. Second operand 19 states and 1279 transitions. [2021-06-10 12:43:27,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 967 transitions, 22865 flow [2021-06-10 12:43:28,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 967 transitions, 22471 flow, removed 52 selfloop flow, removed 14 redundant places. [2021-06-10 12:43:28,512 INFO L241 Difference]: Finished difference. Result has 461 places, 800 transitions, 19381 flow [2021-06-10 12:43:28,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=16536, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=732, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=19381, PETRI_PLACES=461, PETRI_TRANSITIONS=800} [2021-06-10 12:43:28,513 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 319 predicate places. [2021-06-10 12:43:28,513 INFO L480 AbstractCegarLoop]: Abstraction has has 461 places, 800 transitions, 19381 flow [2021-06-10 12:43:28,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:28,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:43:28,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:28,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-10 12:43:28,513 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:43:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:43:28,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1303584196, now seen corresponding path program 16 times [2021-06-10 12:43:28,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:43:28,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869499648] [2021-06-10 12:43:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:43:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:43:28,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:28,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:28,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:28,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:28,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:28,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:43:28,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:28,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:28,643 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:43:28,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:28,653 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:28,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:28,664 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:28,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:28,679 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:43:28,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:43:28,697 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:43:28,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:43:28,716 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:43:28,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:43:28,735 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:43:28,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:28,754 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:43:28,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:43:28,781 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:43:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:43:28,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:28,824 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:28,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:28,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:43:28,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:43:28,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:28,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:43:28,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:28,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:28,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:28,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:28,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:28,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:28,889 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 12:43:28,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869499648] [2021-06-10 12:43:28,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:43:28,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:43:28,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409645437] [2021-06-10 12:43:28,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:43:28,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:43:28,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:43:28,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:43:28,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:43:28,892 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 800 transitions, 19381 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:28,892 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:43:28,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:43:28,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:43:34,795 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2021-06-10 12:43:34,921 INFO L129 PetriNetUnfolder]: 4190/14205 cut-off events. [2021-06-10 12:43:34,921 INFO L130 PetriNetUnfolder]: For 209353/210541 co-relation queries the response was YES. [2021-06-10 12:43:35,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69037 conditions, 14205 events. 4190/14205 cut-off events. For 209353/210541 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 172263 event pairs, 1608 based on Foata normal form. 244/14110 useless extension candidates. Maximal degree in co-relation 68886. Up to 6801 conditions per place. [2021-06-10 12:43:35,133 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 593 selfloop transitions, 306 changer transitions 0/942 dead transitions. [2021-06-10 12:43:35,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 942 transitions, 23228 flow [2021-06-10 12:43:35,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:43:35,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:43:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1402 transitions. [2021-06-10 12:43:35,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42796092796092794 [2021-06-10 12:43:35,135 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1402 transitions. [2021-06-10 12:43:35,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1402 transitions. [2021-06-10 12:43:35,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:43:35,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1402 transitions. [2021-06-10 12:43:35,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.76190476190476) internal successors, (1402), 21 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 12:43:35,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:43:35,140 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:43:35,140 INFO L185 Difference]: Start difference. First operand has 461 places, 800 transitions, 19381 flow. Second operand 21 states and 1402 transitions. [2021-06-10 12:43:35,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 942 transitions, 23228 flow [2021-06-10 12:43:36,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 942 transitions, 22814 flow, removed 195 selfloop flow, removed 5 redundant places. [2021-06-10 12:43:36,462 INFO L241 Difference]: Finished difference. Result has 485 places, 835 transitions, 20881 flow [2021-06-10 12:43:36,463 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=18973, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=20881, PETRI_PLACES=485, PETRI_TRANSITIONS=835} [2021-06-10 12:43:36,463 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 343 predicate places. [2021-06-10 12:43:36,463 INFO L480 AbstractCegarLoop]: Abstraction has has 485 places, 835 transitions, 20881 flow [2021-06-10 12:43:36,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:36,464 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:43:36,464 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:36,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-10 12:43:36,464 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:43:36,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:43:36,464 INFO L82 PathProgramCache]: Analyzing trace with hash -172674460, now seen corresponding path program 17 times [2021-06-10 12:43:36,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:43:36,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962300872] [2021-06-10 12:43:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:43:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:43:36,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:36,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:36,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:36,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:36,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:36,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:43:36,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:36,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:36,592 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:43:36,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:36,602 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:36,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:36,613 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:36,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:36,632 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:36,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:36,649 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:43:36,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:43:36,668 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:43:36,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:43:36,689 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:43:36,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:36,769 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:43:36,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:43:36,790 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:43:36,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:43:36,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:43:36,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:43:36,821 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:36,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:36,837 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:36,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:36,838 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:43:36,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:43:36,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:36,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:43:36,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:36,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:36,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:36,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:36,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:36,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:43:36,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962300872] [2021-06-10 12:43:36,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:43:36,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:43:36,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834107841] [2021-06-10 12:43:36,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:43:36,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:43:36,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:43:36,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:43:36,894 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:43:36,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 835 transitions, 20881 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:36,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:43:36,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:43:36,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:43:43,031 INFO L129 PetriNetUnfolder]: 4187/14252 cut-off events. [2021-06-10 12:43:43,031 INFO L130 PetriNetUnfolder]: For 217295/218332 co-relation queries the response was YES. [2021-06-10 12:43:43,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69793 conditions, 14252 events. 4187/14252 cut-off events. For 217295/218332 co-relation queries the response was YES. Maximal size of possible extension queue 909. Compared 172994 event pairs, 1667 based on Foata normal form. 265/14190 useless extension candidates. Maximal degree in co-relation 69633. Up to 4414 conditions per place. [2021-06-10 12:43:43,215 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 617 selfloop transitions, 335 changer transitions 0/995 dead transitions. [2021-06-10 12:43:43,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 995 transitions, 25269 flow [2021-06-10 12:43:43,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:43:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:43:43,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1342 transitions. [2021-06-10 12:43:43,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43012820512820515 [2021-06-10 12:43:43,218 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1342 transitions. [2021-06-10 12:43:43,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1342 transitions. [2021-06-10 12:43:43,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:43:43,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1342 transitions. [2021-06-10 12:43:43,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 67.1) internal successors, (1342), 20 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states 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 12:43:43,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:43:43,222 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:43:43,222 INFO L185 Difference]: Start difference. First operand has 485 places, 835 transitions, 20881 flow. Second operand 20 states and 1342 transitions. [2021-06-10 12:43:43,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 995 transitions, 25269 flow [2021-06-10 12:43:44,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 995 transitions, 24888 flow, removed 98 selfloop flow, removed 7 redundant places. [2021-06-10 12:43:44,723 INFO L241 Difference]: Finished difference. Result has 505 places, 866 transitions, 22566 flow [2021-06-10 12:43:44,724 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=20509, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=835, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=304, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=22566, PETRI_PLACES=505, PETRI_TRANSITIONS=866} [2021-06-10 12:43:44,724 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 363 predicate places. [2021-06-10 12:43:44,724 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 866 transitions, 22566 flow [2021-06-10 12:43:44,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:44,725 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:43:44,725 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:44,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-10 12:43:44,725 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:43:44,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:43:44,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1855415832, now seen corresponding path program 18 times [2021-06-10 12:43:44,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:43:44,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311125155] [2021-06-10 12:43:44,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:43:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:43:44,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:44,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:44,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:44,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:44,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:44,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:43:44,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:44,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:44,864 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:43:44,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:44,876 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:44,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:44,888 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:44,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:44,906 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:43:44,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:43:44,922 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:43:44,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:43:44,941 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:43:44,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:43:44,961 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:43:44,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:44,982 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:43:44,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:43:45,010 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:43:45,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:43:45,034 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:45,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:45,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:45,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:45,055 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:43:45,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:43:45,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:45,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:43:45,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:45,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:45,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:45,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:45,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:45,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:45,123 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 12:43:45,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311125155] [2021-06-10 12:43:45,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:43:45,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:43:45,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52168171] [2021-06-10 12:43:45,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:43:45,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:43:45,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:43:45,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:43:45,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:43:45,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 866 transitions, 22566 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:45,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:43:45,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:43:45,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:43:46,248 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-06-10 12:43:51,361 INFO L129 PetriNetUnfolder]: 4184/14282 cut-off events. [2021-06-10 12:43:51,361 INFO L130 PetriNetUnfolder]: For 232550/233572 co-relation queries the response was YES. [2021-06-10 12:43:51,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71172 conditions, 14282 events. 4184/14282 cut-off events. For 232550/233572 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 173128 event pairs, 1640 based on Foata normal form. 217/14164 useless extension candidates. Maximal degree in co-relation 71004. Up to 3854 conditions per place. [2021-06-10 12:43:51,566 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 668 selfloop transitions, 343 changer transitions 0/1054 dead transitions. [2021-06-10 12:43:51,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 1054 transitions, 27562 flow [2021-06-10 12:43:51,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:43:51,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:43:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1399 transitions. [2021-06-10 12:43:51,568 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.427045177045177 [2021-06-10 12:43:51,568 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1399 transitions. [2021-06-10 12:43:51,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1399 transitions. [2021-06-10 12:43:51,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:43:51,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1399 transitions. [2021-06-10 12:43:51,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.61904761904762) internal successors, (1399), 21 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states 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 12:43:51,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:43:51,572 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:43:51,572 INFO L185 Difference]: Start difference. First operand has 505 places, 866 transitions, 22566 flow. Second operand 21 states and 1399 transitions. [2021-06-10 12:43:51,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 1054 transitions, 27562 flow [2021-06-10 12:43:53,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 1054 transitions, 27274 flow, removed 114 selfloop flow, removed 6 redundant places. [2021-06-10 12:43:53,472 INFO L241 Difference]: Finished difference. Result has 528 places, 898 transitions, 24064 flow [2021-06-10 12:43:53,473 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=22281, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=311, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=24064, PETRI_PLACES=528, PETRI_TRANSITIONS=898} [2021-06-10 12:43:53,473 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 386 predicate places. [2021-06-10 12:43:53,474 INFO L480 AbstractCegarLoop]: Abstraction has has 528 places, 898 transitions, 24064 flow [2021-06-10 12:43:53,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:53,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:43:53,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:53,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-10 12:43:53,475 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:43:53,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:43:53,475 INFO L82 PathProgramCache]: Analyzing trace with hash 2142758102, now seen corresponding path program 19 times [2021-06-10 12:43:53,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:43:53,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740556149] [2021-06-10 12:43:53,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:43:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:43:53,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:53,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:53,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:53,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:53,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:53,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:43:53,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:53,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:53,634 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:43:53,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:43:53,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:53,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:53,657 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:53,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:53,674 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:43:53,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:53,693 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:43:53,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:43:53,718 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:43:53,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:43:53,736 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:43:53,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:43:53,756 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:43:53,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:43:53,784 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:43:53,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:43:53,804 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:53,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:53,821 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:43:53,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:43:53,822 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:43:53,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:43:53,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:53,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:43:53,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:53,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:53,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:53,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:43:53,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:43:53,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:43:53,879 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 12:43:53,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740556149] [2021-06-10 12:43:53,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:43:53,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:43:53,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444388189] [2021-06-10 12:43:53,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:43:53,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:43:53,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:43:53,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:43:53,881 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:43:53,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 898 transitions, 24064 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:43:53,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:43:53,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:43:53,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:44:00,595 INFO L129 PetriNetUnfolder]: 4178/14375 cut-off events. [2021-06-10 12:44:00,596 INFO L130 PetriNetUnfolder]: For 255692/256712 co-relation queries the response was YES. [2021-06-10 12:44:00,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73008 conditions, 14375 events. 4178/14375 cut-off events. For 255692/256712 co-relation queries the response was YES. Maximal size of possible extension queue 906. Compared 174858 event pairs, 1760 based on Foata normal form. 230/14262 useless extension candidates. Maximal degree in co-relation 72830. Up to 4414 conditions per place. [2021-06-10 12:44:00,833 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 666 selfloop transitions, 360 changer transitions 0/1069 dead transitions. [2021-06-10 12:44:00,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 1069 transitions, 29467 flow [2021-06-10 12:44:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:44:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:44:00,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1400 transitions. [2021-06-10 12:44:00,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42735042735042733 [2021-06-10 12:44:00,836 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1400 transitions. [2021-06-10 12:44:00,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1400 transitions. [2021-06-10 12:44:00,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:44:00,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1400 transitions. [2021-06-10 12:44:00,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.66666666666667) internal successors, (1400), 21 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:44:00,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:44:00,840 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:44:00,840 INFO L185 Difference]: Start difference. First operand has 528 places, 898 transitions, 24064 flow. Second operand 21 states and 1400 transitions. [2021-06-10 12:44:00,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 1069 transitions, 29467 flow [2021-06-10 12:44:02,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 1069 transitions, 29111 flow, removed 86 selfloop flow, removed 8 redundant places. [2021-06-10 12:44:02,781 INFO L241 Difference]: Finished difference. Result has 550 places, 943 transitions, 26578 flow [2021-06-10 12:44:02,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=23718, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=898, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=315, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=26578, PETRI_PLACES=550, PETRI_TRANSITIONS=943} [2021-06-10 12:44:02,782 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 408 predicate places. [2021-06-10 12:44:02,782 INFO L480 AbstractCegarLoop]: Abstraction has has 550 places, 943 transitions, 26578 flow [2021-06-10 12:44:02,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:02,783 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:44:02,783 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:02,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-10 12:44:02,783 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:44:02,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:44:02,784 INFO L82 PathProgramCache]: Analyzing trace with hash -89425290, now seen corresponding path program 20 times [2021-06-10 12:44:02,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:44:02,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476268774] [2021-06-10 12:44:02,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:44:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:44:02,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:02,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:02,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:02,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:02,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:02,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:44:02,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:02,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:02,996 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:44:02,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:03,006 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:03,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:03,018 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:44:03,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:03,035 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:44:03,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:03,050 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-10 12:44:03,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:03,068 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:44:03,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:44:03,090 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:44:03,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:03,109 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:44:03,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:44:03,131 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:44:03,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:44:03,143 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:44:03,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:44:03,162 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:03,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:03,177 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:03,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:03,178 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:44:03,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:44:03,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:03,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:44:03,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:03,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:03,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:03,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:03,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:03,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:03,219 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 12:44:03,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476268774] [2021-06-10 12:44:03,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:44:03,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:44:03,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76563878] [2021-06-10 12:44:03,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:44:03,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:44:03,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:44:03,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:44:03,221 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:44:03,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 943 transitions, 26578 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:03,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:44:03,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:44:03,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:44:09,559 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-06-10 12:44:10,867 INFO L129 PetriNetUnfolder]: 4178/14385 cut-off events. [2021-06-10 12:44:10,867 INFO L130 PetriNetUnfolder]: For 270438/271498 co-relation queries the response was YES. [2021-06-10 12:44:11,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73834 conditions, 14385 events. 4178/14385 cut-off events. For 270438/271498 co-relation queries the response was YES. Maximal size of possible extension queue 918. Compared 175256 event pairs, 1577 based on Foata normal form. 290/14343 useless extension candidates. Maximal degree in co-relation 73647. Up to 4414 conditions per place. [2021-06-10 12:44:11,243 INFO L132 encePairwiseOnDemand]: 129/156 looper letters, 704 selfloop transitions, 391 changer transitions 0/1138 dead transitions. [2021-06-10 12:44:11,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 1138 transitions, 31113 flow [2021-06-10 12:44:11,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-10 12:44:11,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-06-10 12:44:11,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 1796 transitions. [2021-06-10 12:44:11,245 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4264007597340931 [2021-06-10 12:44:11,245 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 1796 transitions. [2021-06-10 12:44:11,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 1796 transitions. [2021-06-10 12:44:11,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:44:11,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 1796 transitions. [2021-06-10 12:44:11,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 66.51851851851852) internal successors, (1796), 27 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states 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 12:44:11,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 156.0) internal successors, (4368), 28 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states 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 12:44:11,250 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 156.0) internal successors, (4368), 28 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states 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 12:44:11,250 INFO L185 Difference]: Start difference. First operand has 550 places, 943 transitions, 26578 flow. Second operand 27 states and 1796 transitions. [2021-06-10 12:44:11,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 1138 transitions, 31113 flow [2021-06-10 12:44:13,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 1138 transitions, 30720 flow, removed 134 selfloop flow, removed 8 redundant places. [2021-06-10 12:44:13,215 INFO L241 Difference]: Finished difference. Result has 573 places, 962 transitions, 27619 flow [2021-06-10 12:44:13,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=26185, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=27619, PETRI_PLACES=573, PETRI_TRANSITIONS=962} [2021-06-10 12:44:13,216 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 431 predicate places. [2021-06-10 12:44:13,216 INFO L480 AbstractCegarLoop]: Abstraction has has 573 places, 962 transitions, 27619 flow [2021-06-10 12:44:13,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:13,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:44:13,216 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:13,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-10 12:44:13,216 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:44:13,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:44:13,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1075330536, now seen corresponding path program 21 times [2021-06-10 12:44:13,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:44:13,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866418105] [2021-06-10 12:44:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:44:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:44:13,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:13,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:13,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:13,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:44:13,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:13,342 INFO L142 QuantifierPusher]: treesize reduction 30, result has 33.3 percent of original size [2021-06-10 12:44:13,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:13,353 INFO L142 QuantifierPusher]: treesize reduction 14, result has 54.8 percent of original size [2021-06-10 12:44:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:13,364 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-06-10 12:44:13,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:13,380 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-06-10 12:44:13,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:13,398 INFO L142 QuantifierPusher]: treesize reduction 18, result has 59.1 percent of original size [2021-06-10 12:44:13,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:44:13,417 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-06-10 12:44:13,418 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-06-10 12:44:13,451 INFO L142 QuantifierPusher]: treesize reduction 21, result has 56.3 percent of original size [2021-06-10 12:44:13,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:44:13,483 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-06-10 12:44:13,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-10 12:44:13,524 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-06-10 12:44:13,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:13,548 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:44:13,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:13,552 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-06-10 12:44:13,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:44:13,568 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-10 12:44:13,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:13,583 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:44:13,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:44:13,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:13,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:44:13,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:13,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:13,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:13,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:13,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:13,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:13,629 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 12:44:13,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866418105] [2021-06-10 12:44:13,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:44:13,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:44:13,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342107380] [2021-06-10 12:44:13,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:44:13,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:44:13,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:44:13,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:44:13,631 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:44:13,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 962 transitions, 27619 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:13,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:44:13,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:44:13,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:44:20,857 INFO L129 PetriNetUnfolder]: 4175/14400 cut-off events. [2021-06-10 12:44:20,857 INFO L130 PetriNetUnfolder]: For 286040/287101 co-relation queries the response was YES. [2021-06-10 12:44:21,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75278 conditions, 14400 events. 4175/14400 cut-off events. For 286040/287101 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 175304 event pairs, 1804 based on Foata normal form. 215/14274 useless extension candidates. Maximal degree in co-relation 75085. Up to 4414 conditions per place. [2021-06-10 12:44:21,080 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 722 selfloop transitions, 356 changer transitions 0/1121 dead transitions. [2021-06-10 12:44:21,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1121 transitions, 32294 flow [2021-06-10 12:44:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:44:21,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:44:21,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1404 transitions. [2021-06-10 12:44:21,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-06-10 12:44:21,082 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1404 transitions. [2021-06-10 12:44:21,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1404 transitions. [2021-06-10 12:44:21,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:44:21,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1404 transitions. [2021-06-10 12:44:21,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.85714285714286) internal successors, (1404), 21 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 12:44:21,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:44:21,086 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:44:21,086 INFO L185 Difference]: Start difference. First operand has 573 places, 962 transitions, 27619 flow. Second operand 21 states and 1404 transitions. [2021-06-10 12:44:21,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1121 transitions, 32294 flow [2021-06-10 12:44:23,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 1121 transitions, 31790 flow, removed 146 selfloop flow, removed 16 redundant places. [2021-06-10 12:44:23,304 INFO L241 Difference]: Finished difference. Result has 587 places, 998 transitions, 29442 flow [2021-06-10 12:44:23,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=27117, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=29442, PETRI_PLACES=587, PETRI_TRANSITIONS=998} [2021-06-10 12:44:23,305 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 445 predicate places. [2021-06-10 12:44:23,306 INFO L480 AbstractCegarLoop]: Abstraction has has 587 places, 998 transitions, 29442 flow [2021-06-10 12:44:23,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:23,306 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:44:23,306 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:23,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-10 12:44:23,306 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:44:23,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:44:23,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1692438338, now seen corresponding path program 22 times [2021-06-10 12:44:23,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:44:23,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129531916] [2021-06-10 12:44:23,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:44:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:44:23,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:23,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:23,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:23,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:23,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:23,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:44:23,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:23,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:23,435 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:44:23,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:23,444 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:23,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:23,461 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:44:23,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:23,477 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:44:23,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:23,495 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:44:23,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:44:23,512 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:44:23,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:44:23,531 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:44:23,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:23,552 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:44:23,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:44:23,580 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:44:23,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:44:23,603 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:23,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:23,622 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:23,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:23,623 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:44:23,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:44:23,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:23,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:44:23,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:23,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:23,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:23,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:23,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:23,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:44:23,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129531916] [2021-06-10 12:44:23,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:44:23,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:44:23,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059323504] [2021-06-10 12:44:23,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:44:23,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:44:23,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:44:23,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:44:23,686 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:44:23,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 998 transitions, 29442 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:23,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:44:23,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:44:23,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:44:31,042 INFO L129 PetriNetUnfolder]: 4169/14511 cut-off events. [2021-06-10 12:44:31,042 INFO L130 PetriNetUnfolder]: For 308987/310011 co-relation queries the response was YES. [2021-06-10 12:44:31,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76732 conditions, 14511 events. 4169/14511 cut-off events. For 308987/310011 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 177132 event pairs, 1860 based on Foata normal form. 187/14349 useless extension candidates. Maximal degree in co-relation 76531. Up to 4414 conditions per place. [2021-06-10 12:44:31,412 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 753 selfloop transitions, 389 changer transitions 0/1185 dead transitions. [2021-06-10 12:44:31,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 1185 transitions, 35299 flow [2021-06-10 12:44:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:44:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:44:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1404 transitions. [2021-06-10 12:44:31,414 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-06-10 12:44:31,414 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1404 transitions. [2021-06-10 12:44:31,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1404 transitions. [2021-06-10 12:44:31,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:44:31,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1404 transitions. [2021-06-10 12:44:31,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.85714285714286) internal successors, (1404), 21 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 12:44:31,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:44:31,418 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:44:31,418 INFO L185 Difference]: Start difference. First operand has 587 places, 998 transitions, 29442 flow. Second operand 21 states and 1404 transitions. [2021-06-10 12:44:31,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 1185 transitions, 35299 flow [2021-06-10 12:44:33,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 1185 transitions, 34867 flow, removed 140 selfloop flow, removed 8 redundant places. [2021-06-10 12:44:33,808 INFO L241 Difference]: Finished difference. Result has 607 places, 1040 transitions, 31690 flow [2021-06-10 12:44:33,809 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=29012, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=353, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=31690, PETRI_PLACES=607, PETRI_TRANSITIONS=1040} [2021-06-10 12:44:33,809 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 465 predicate places. [2021-06-10 12:44:33,809 INFO L480 AbstractCegarLoop]: Abstraction has has 607 places, 1040 transitions, 31690 flow [2021-06-10 12:44:33,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:33,809 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:44:33,809 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:33,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-10 12:44:33,809 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:44:33,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:44:33,810 INFO L82 PathProgramCache]: Analyzing trace with hash 262202736, now seen corresponding path program 23 times [2021-06-10 12:44:33,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:44:33,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672383084] [2021-06-10 12:44:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:44:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:44:33,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:33,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:33,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:33,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:33,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:44:33,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:33,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:33,946 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:44:33,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:33,957 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:33,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:33,969 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:44:33,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:33,986 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:44:33,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:34,005 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:44:34,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:44:34,022 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-06-10 12:44:34,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:44:34,041 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:44:34,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:34,063 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:44:34,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:44:34,093 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:44:34,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:44:34,109 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:44:34,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:44:34,130 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:34,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:34,148 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:34,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:34,149 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:44:34,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:44:34,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:34,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:44:34,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:34,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:34,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:34,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:34,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:34,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:44:34,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672383084] [2021-06-10 12:44:34,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:44:34,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:44:34,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69981485] [2021-06-10 12:44:34,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:44:34,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:44:34,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:44:34,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:44:34,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:44:34,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 1040 transitions, 31690 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:34,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:44:34,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:44:34,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:44:42,172 INFO L129 PetriNetUnfolder]: 4169/14511 cut-off events. [2021-06-10 12:44:42,172 INFO L130 PetriNetUnfolder]: For 320836/321863 co-relation queries the response was YES. [2021-06-10 12:44:42,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77394 conditions, 14511 events. 4169/14511 cut-off events. For 320836/321863 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 177250 event pairs, 1866 based on Foata normal form. 219/14381 useless extension candidates. Maximal degree in co-relation 77184. Up to 4414 conditions per place. [2021-06-10 12:44:42,431 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 761 selfloop transitions, 398 changer transitions 0/1202 dead transitions. [2021-06-10 12:44:42,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 1202 transitions, 36209 flow [2021-06-10 12:44:42,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-10 12:44:42,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-06-10 12:44:42,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1474 transitions. [2021-06-10 12:44:42,433 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42948717948717946 [2021-06-10 12:44:42,433 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1474 transitions. [2021-06-10 12:44:42,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1474 transitions. [2021-06-10 12:44:42,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:44:42,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1474 transitions. [2021-06-10 12:44:42,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 67.0) internal successors, (1474), 22 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states 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 12:44:42,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 156.0) internal successors, (3588), 23 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states 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 12:44:42,437 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 156.0) internal successors, (3588), 23 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states 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 12:44:42,437 INFO L185 Difference]: Start difference. First operand has 607 places, 1040 transitions, 31690 flow. Second operand 22 states and 1474 transitions. [2021-06-10 12:44:42,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 1202 transitions, 36209 flow [2021-06-10 12:44:44,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 1202 transitions, 35513 flow, removed 125 selfloop flow, removed 8 redundant places. [2021-06-10 12:44:44,937 INFO L241 Difference]: Finished difference. Result has 629 places, 1061 transitions, 32483 flow [2021-06-10 12:44:44,938 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=30995, PETRI_DIFFERENCE_MINUEND_PLACES=599, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1040, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=377, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=32483, PETRI_PLACES=629, PETRI_TRANSITIONS=1061} [2021-06-10 12:44:44,938 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 487 predicate places. [2021-06-10 12:44:44,938 INFO L480 AbstractCegarLoop]: Abstraction has has 629 places, 1061 transitions, 32483 flow [2021-06-10 12:44:44,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:44,938 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:44:44,938 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:44,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-10 12:44:44,938 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:44:44,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:44:44,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1482073886, now seen corresponding path program 24 times [2021-06-10 12:44:44,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:44:44,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825808008] [2021-06-10 12:44:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:44:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:44:45,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:45,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:45,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:45,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:45,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:45,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:44:45,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:45,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:45,062 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:44:45,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:45,072 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:45,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:45,084 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:44:45,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:45,100 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:44:45,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:44:45,115 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:44:45,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:44:45,132 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-06-10 12:44:45,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:44:45,151 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:44:45,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:45,171 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:44:45,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:44:45,201 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:44:45,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:44:45,216 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:44:45,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:44:45,237 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:45,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:45,255 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:45,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:45,256 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:44:45,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:44:45,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:45,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:44:45,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:45,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:45,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:45,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:45,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:45,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:45,318 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 12:44:45,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825808008] [2021-06-10 12:44:45,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:44:45,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:44:45,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435628278] [2021-06-10 12:44:45,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:44:45,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:44:45,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:44:45,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:44:45,320 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:44:45,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 1061 transitions, 32483 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:45,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:44:45,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:44:45,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:44:46,514 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2021-06-10 12:44:53,115 INFO L129 PetriNetUnfolder]: 4167/14547 cut-off events. [2021-06-10 12:44:53,115 INFO L130 PetriNetUnfolder]: For 335339/336316 co-relation queries the response was YES. [2021-06-10 12:44:53,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78334 conditions, 14547 events. 4167/14547 cut-off events. For 335339/336316 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 177405 event pairs, 1859 based on Foata normal form. 196/14398 useless extension candidates. Maximal degree in co-relation 78115. Up to 4964 conditions per place. [2021-06-10 12:44:53,497 INFO L132 encePairwiseOnDemand]: 131/156 looper letters, 793 selfloop transitions, 424 changer transitions 0/1260 dead transitions. [2021-06-10 12:44:53,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 1260 transitions, 38346 flow [2021-06-10 12:44:53,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-10 12:44:53,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-06-10 12:44:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1475 transitions. [2021-06-10 12:44:53,499 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42977855477855476 [2021-06-10 12:44:53,499 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1475 transitions. [2021-06-10 12:44:53,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1475 transitions. [2021-06-10 12:44:53,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:44:53,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1475 transitions. [2021-06-10 12:44:53,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 67.04545454545455) internal successors, (1475), 22 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states 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 12:44:53,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 156.0) internal successors, (3588), 23 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states 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 12:44:53,503 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 156.0) internal successors, (3588), 23 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states 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 12:44:53,503 INFO L185 Difference]: Start difference. First operand has 629 places, 1061 transitions, 32483 flow. Second operand 22 states and 1475 transitions. [2021-06-10 12:44:53,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 1260 transitions, 38346 flow [2021-06-10 12:44:55,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 642 places, 1260 transitions, 37859 flow, removed 116 selfloop flow, removed 8 redundant places. [2021-06-10 12:44:55,947 INFO L241 Difference]: Finished difference. Result has 650 places, 1090 transitions, 34132 flow [2021-06-10 12:44:55,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=32004, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=396, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=34132, PETRI_PLACES=650, PETRI_TRANSITIONS=1090} [2021-06-10 12:44:55,949 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 508 predicate places. [2021-06-10 12:44:55,949 INFO L480 AbstractCegarLoop]: Abstraction has has 650 places, 1090 transitions, 34132 flow [2021-06-10 12:44:55,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:55,949 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:44:55,949 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:55,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-10 12:44:55,949 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:44:55,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:44:55,950 INFO L82 PathProgramCache]: Analyzing trace with hash -2128343250, now seen corresponding path program 25 times [2021-06-10 12:44:55,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:44:55,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341106071] [2021-06-10 12:44:55,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:44:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:44:56,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:56,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:56,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:56,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:56,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:56,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:44:56,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:56,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:56,063 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:44:56,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:44:56,072 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:56,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:56,083 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:44:56,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:56,099 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:44:56,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:44:56,114 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:44:56,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:44:56,131 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:44:56,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:44:56,149 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:44:56,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:44:56,170 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:44:56,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:44:56,189 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:44:56,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:44:56,202 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:44:56,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:44:56,218 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:56,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:56,234 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:44:56,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:44:56,234 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:44:56,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:44:56,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:56,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:44:56,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:56,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:56,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:56,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:44:56,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:44:56,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:44:56,346 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 12:44:56,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341106071] [2021-06-10 12:44:56,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:44:56,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:44:56,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821678461] [2021-06-10 12:44:56,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:44:56,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:44:56,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:44:56,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:44:56,348 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:44:56,349 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 650 places, 1090 transitions, 34132 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:44:56,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:44:56,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:44:56,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:45:04,287 INFO L129 PetriNetUnfolder]: 4166/14552 cut-off events. [2021-06-10 12:45:04,288 INFO L130 PetriNetUnfolder]: For 354391/355373 co-relation queries the response was YES. [2021-06-10 12:45:04,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79135 conditions, 14552 events. 4166/14552 cut-off events. For 354391/355373 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 177364 event pairs, 1879 based on Foata normal form. 196/14407 useless extension candidates. Maximal degree in co-relation 78908. Up to 4964 conditions per place. [2021-06-10 12:45:04,718 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 785 selfloop transitions, 428 changer transitions 0/1256 dead transitions. [2021-06-10 12:45:04,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 1256 transitions, 39449 flow [2021-06-10 12:45:04,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:45:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:45:04,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1398 transitions. [2021-06-10 12:45:04,720 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4267399267399267 [2021-06-10 12:45:04,720 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1398 transitions. [2021-06-10 12:45:04,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1398 transitions. [2021-06-10 12:45:04,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:45:04,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1398 transitions. [2021-06-10 12:45:04,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.57142857142857) internal successors, (1398), 21 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states 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 12:45:04,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:45:04,723 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:45:04,723 INFO L185 Difference]: Start difference. First operand has 650 places, 1090 transitions, 34132 flow. Second operand 21 states and 1398 transitions. [2021-06-10 12:45:04,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 1256 transitions, 39449 flow [2021-06-10 12:45:07,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 1256 transitions, 38929 flow, removed 167 selfloop flow, removed 13 redundant places. [2021-06-10 12:45:07,616 INFO L241 Difference]: Finished difference. Result has 664 places, 1109 transitions, 35387 flow [2021-06-10 12:45:07,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=33652, PETRI_DIFFERENCE_MINUEND_PLACES=637, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1090, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=664, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=35387, PETRI_PLACES=664, PETRI_TRANSITIONS=1109} [2021-06-10 12:45:07,617 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 522 predicate places. [2021-06-10 12:45:07,618 INFO L480 AbstractCegarLoop]: Abstraction has has 664 places, 1109 transitions, 35387 flow [2021-06-10 12:45:07,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:07,618 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:45:07,618 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:07,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-10 12:45:07,618 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:45:07,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:45:07,619 INFO L82 PathProgramCache]: Analyzing trace with hash -578395942, now seen corresponding path program 26 times [2021-06-10 12:45:07,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:45:07,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090981134] [2021-06-10 12:45:07,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:45:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:45:07,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:07,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:07,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:07,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:45:07,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:07,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:07,746 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:45:07,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:07,756 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:07,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:07,767 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:45:07,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:07,783 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:45:07,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:07,801 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:45:07,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:45:07,822 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:45:07,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:45:07,845 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-06-10 12:45:07,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-10 12:45:07,874 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-06-10 12:45:07,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 12:45:07,899 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-10 12:45:07,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-10 12:45:07,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:07,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:07,934 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:07,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:07,935 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:45:07,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:45:07,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:07,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:45:07,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:07,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:07,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:07,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:07,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:07,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:07,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:45:07,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090981134] [2021-06-10 12:45:07,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:45:07,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:45:07,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839729942] [2021-06-10 12:45:07,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:45:07,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:45:07,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:45:07,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:45:07,993 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:45:07,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 664 places, 1109 transitions, 35387 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:07,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:45:07,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:45:07,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:45:15,082 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-06-10 12:45:16,699 INFO L129 PetriNetUnfolder]: 4178/14669 cut-off events. [2021-06-10 12:45:16,699 INFO L130 PetriNetUnfolder]: For 372503/373327 co-relation queries the response was YES. [2021-06-10 12:45:17,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80361 conditions, 14669 events. 4178/14669 cut-off events. For 372503/373327 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 179873 event pairs, 1641 based on Foata normal form. 198/14543 useless extension candidates. Maximal degree in co-relation 80133. Up to 4520 conditions per place. [2021-06-10 12:45:17,117 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 845 selfloop transitions, 384 changer transitions 0/1272 dead transitions. [2021-06-10 12:45:17,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 1272 transitions, 40798 flow [2021-06-10 12:45:17,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-10 12:45:17,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-10 12:45:17,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1274 transitions. [2021-06-10 12:45:17,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4298245614035088 [2021-06-10 12:45:17,119 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1274 transitions. [2021-06-10 12:45:17,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1274 transitions. [2021-06-10 12:45:17,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:45:17,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1274 transitions. [2021-06-10 12:45:17,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 67.05263157894737) internal successors, (1274), 19 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 12:45:17,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:45:17,122 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 156.0) internal successors, (3120), 20 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states 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 12:45:17,122 INFO L185 Difference]: Start difference. First operand has 664 places, 1109 transitions, 35387 flow. Second operand 19 states and 1274 transitions. [2021-06-10 12:45:17,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 682 places, 1272 transitions, 40798 flow [2021-06-10 12:45:20,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 674 places, 1272 transitions, 40359 flow, removed 118 selfloop flow, removed 8 redundant places. [2021-06-10 12:45:20,106 INFO L241 Difference]: Finished difference. Result has 684 places, 1148 transitions, 37557 flow [2021-06-10 12:45:20,107 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=34954, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=37557, PETRI_PLACES=684, PETRI_TRANSITIONS=1148} [2021-06-10 12:45:20,107 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 542 predicate places. [2021-06-10 12:45:20,107 INFO L480 AbstractCegarLoop]: Abstraction has has 684 places, 1148 transitions, 37557 flow [2021-06-10 12:45:20,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:20,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:45:20,107 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:20,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-10 12:45:20,108 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:45:20,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:45:20,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1146482502, now seen corresponding path program 27 times [2021-06-10 12:45:20,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:45:20,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030592524] [2021-06-10 12:45:20,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:45:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:45:20,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:20,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:20,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:20,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:20,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:20,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:45:20,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:20,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:20,220 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:45:20,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:20,230 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:20,241 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:45:20,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:20,258 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:45:20,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:45:20,278 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:45:20,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:45:20,298 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:45:20,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:45:20,318 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:45:20,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:20,333 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:45:20,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:45:20,351 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:45:20,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:45:20,367 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:20,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:20,379 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:20,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:20,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:45:20,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:45:20,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:20,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:45:20,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:20,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:20,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:20,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:20,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:20,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:20,423 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 12:45:20,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030592524] [2021-06-10 12:45:20,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:45:20,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:45:20,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51829295] [2021-06-10 12:45:20,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:45:20,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:45:20,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:45:20,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:45:20,424 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:45:20,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 1148 transitions, 37557 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:20,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:45:20,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:45:20,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:45:29,069 INFO L129 PetriNetUnfolder]: 4175/14677 cut-off events. [2021-06-10 12:45:29,069 INFO L130 PetriNetUnfolder]: For 407696/408521 co-relation queries the response was YES. [2021-06-10 12:45:29,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82871 conditions, 14677 events. 4175/14677 cut-off events. For 407696/408521 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 179958 event pairs, 1629 based on Foata normal form. 219/14577 useless extension candidates. Maximal degree in co-relation 82634. Up to 6883 conditions per place. [2021-06-10 12:45:29,353 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 817 selfloop transitions, 433 changer transitions 0/1293 dead transitions. [2021-06-10 12:45:29,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 1293 transitions, 42914 flow [2021-06-10 12:45:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:45:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:45:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1336 transitions. [2021-06-10 12:45:29,355 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4282051282051282 [2021-06-10 12:45:29,355 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1336 transitions. [2021-06-10 12:45:29,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1336 transitions. [2021-06-10 12:45:29,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:45:29,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1336 transitions. [2021-06-10 12:45:29,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.8) internal successors, (1336), 20 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states 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 12:45:29,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:45:29,358 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:45:29,358 INFO L185 Difference]: Start difference. First operand has 684 places, 1148 transitions, 37557 flow. Second operand 20 states and 1336 transitions. [2021-06-10 12:45:29,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 703 places, 1293 transitions, 42914 flow [2021-06-10 12:45:32,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 696 places, 1293 transitions, 42143 flow, removed 274 selfloop flow, removed 7 redundant places. [2021-06-10 12:45:32,660 INFO L241 Difference]: Finished difference. Result has 704 places, 1179 transitions, 39546 flow [2021-06-10 12:45:32,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=36795, PETRI_DIFFERENCE_MINUEND_PLACES=677, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=721, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=39546, PETRI_PLACES=704, PETRI_TRANSITIONS=1179} [2021-06-10 12:45:32,662 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 562 predicate places. [2021-06-10 12:45:32,662 INFO L480 AbstractCegarLoop]: Abstraction has has 704 places, 1179 transitions, 39546 flow [2021-06-10 12:45:32,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:32,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:45:32,662 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:32,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-10 12:45:32,662 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:45:32,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:45:32,663 INFO L82 PathProgramCache]: Analyzing trace with hash -402959332, now seen corresponding path program 28 times [2021-06-10 12:45:32,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:45:32,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822260229] [2021-06-10 12:45:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:45:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:45:32,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:32,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:32,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:32,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:32,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:32,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:45:32,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:32,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:32,774 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:45:32,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:32,784 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:32,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:32,795 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:45:32,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:32,815 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:45:32,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:45:32,833 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:45:32,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:45:32,853 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:45:32,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:45:32,871 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:45:32,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:32,887 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:45:32,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:45:32,907 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:45:32,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:45:32,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:32,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:32,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:32,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:32,954 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:45:32,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:45:32,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:32,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:45:32,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:32,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:32,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:32,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:33,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:33,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:33,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:45:33,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822260229] [2021-06-10 12:45:33,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:45:33,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:45:33,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256808625] [2021-06-10 12:45:33,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:45:33,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:45:33,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:45:33,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:45:33,009 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:45:33,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 704 places, 1179 transitions, 39546 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:33,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:45:33,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:45:33,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:45:42,054 INFO L129 PetriNetUnfolder]: 4172/14752 cut-off events. [2021-06-10 12:45:42,054 INFO L130 PetriNetUnfolder]: For 440104/440959 co-relation queries the response was YES. [2021-06-10 12:45:42,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84038 conditions, 14752 events. 4172/14752 cut-off events. For 440104/440959 co-relation queries the response was YES. Maximal size of possible extension queue 915. Compared 180317 event pairs, 1877 based on Foata normal form. 226/14644 useless extension candidates. Maximal degree in co-relation 83794. Up to 6883 conditions per place. [2021-06-10 12:45:42,323 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 852 selfloop transitions, 418 changer transitions 0/1313 dead transitions. [2021-06-10 12:45:42,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 724 places, 1313 transitions, 44648 flow [2021-06-10 12:45:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:45:42,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:45:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1398 transitions. [2021-06-10 12:45:42,325 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4267399267399267 [2021-06-10 12:45:42,325 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1398 transitions. [2021-06-10 12:45:42,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1398 transitions. [2021-06-10 12:45:42,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:45:42,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1398 transitions. [2021-06-10 12:45:42,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.57142857142857) internal successors, (1398), 21 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states 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 12:45:42,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:45:42,328 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:45:42,328 INFO L185 Difference]: Start difference. First operand has 704 places, 1179 transitions, 39546 flow. Second operand 21 states and 1398 transitions. [2021-06-10 12:45:42,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 724 places, 1313 transitions, 44648 flow [2021-06-10 12:45:45,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 716 places, 1313 transitions, 43971 flow, removed 255 selfloop flow, removed 8 redundant places. [2021-06-10 12:45:45,923 INFO L241 Difference]: Finished difference. Result has 724 places, 1208 transitions, 41395 flow [2021-06-10 12:45:45,924 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=38901, PETRI_DIFFERENCE_MINUEND_PLACES=696, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=389, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=767, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=41395, PETRI_PLACES=724, PETRI_TRANSITIONS=1208} [2021-06-10 12:45:45,924 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 582 predicate places. [2021-06-10 12:45:45,924 INFO L480 AbstractCegarLoop]: Abstraction has has 724 places, 1208 transitions, 41395 flow [2021-06-10 12:45:45,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:45,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:45:45,925 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:45,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-10 12:45:45,925 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:45:45,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:45:45,925 INFO L82 PathProgramCache]: Analyzing trace with hash 20900058, now seen corresponding path program 29 times [2021-06-10 12:45:45,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:45:45,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871351071] [2021-06-10 12:45:45,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:45:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:45:46,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:46,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:46,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:46,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:45:46,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:46,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:46,039 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:45:46,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:46,048 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:46,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:46,058 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:45:46,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:46,073 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:45:46,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:45:46,088 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:45:46,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:45:46,102 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:45:46,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:45:46,117 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:45:46,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:46,134 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:45:46,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:45:46,154 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:45:46,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:45:46,189 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:46,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:46,204 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:46,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:46,204 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:45:46,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:45:46,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:46,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:45:46,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:46,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:46,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:46,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:46,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:46,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:46,253 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 12:45:46,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871351071] [2021-06-10 12:45:46,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:45:46,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:45:46,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094068939] [2021-06-10 12:45:46,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:45:46,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:45:46,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:45:46,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:45:46,255 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:45:46,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 724 places, 1208 transitions, 41395 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:46,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:45:46,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:45:46,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:45:53,695 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-06-10 12:45:55,002 INFO L129 PetriNetUnfolder]: 4172/14700 cut-off events. [2021-06-10 12:45:55,002 INFO L130 PetriNetUnfolder]: For 444754/445599 co-relation queries the response was YES. [2021-06-10 12:45:55,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84336 conditions, 14700 events. 4172/14700 cut-off events. For 444754/445599 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 180086 event pairs, 1596 based on Foata normal form. 197/14557 useless extension candidates. Maximal degree in co-relation 84084. Up to 5081 conditions per place. [2021-06-10 12:45:55,435 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 829 selfloop transitions, 470 changer transitions 0/1342 dead transitions. [2021-06-10 12:45:55,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 744 places, 1342 transitions, 46347 flow [2021-06-10 12:45:55,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:45:55,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:45:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1393 transitions. [2021-06-10 12:45:55,436 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4252136752136752 [2021-06-10 12:45:55,436 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1393 transitions. [2021-06-10 12:45:55,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1393 transitions. [2021-06-10 12:45:55,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:45:55,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1393 transitions. [2021-06-10 12:45:55,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.33333333333333) internal successors, (1393), 21 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states 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 12:45:55,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:45:55,439 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:45:55,439 INFO L185 Difference]: Start difference. First operand has 724 places, 1208 transitions, 41395 flow. Second operand 21 states and 1393 transitions. [2021-06-10 12:45:55,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 744 places, 1342 transitions, 46347 flow [2021-06-10 12:45:59,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 734 places, 1342 transitions, 44967 flow, removed 197 selfloop flow, removed 10 redundant places. [2021-06-10 12:45:59,304 INFO L241 Difference]: Finished difference. Result has 742 places, 1226 transitions, 41642 flow [2021-06-10 12:45:59,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=40016, PETRI_DIFFERENCE_MINUEND_PLACES=714, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=452, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=738, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=41642, PETRI_PLACES=742, PETRI_TRANSITIONS=1226} [2021-06-10 12:45:59,305 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 600 predicate places. [2021-06-10 12:45:59,305 INFO L480 AbstractCegarLoop]: Abstraction has has 742 places, 1226 transitions, 41642 flow [2021-06-10 12:45:59,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:59,305 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:45:59,306 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:59,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-10 12:45:59,306 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:45:59,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:45:59,306 INFO L82 PathProgramCache]: Analyzing trace with hash 986854704, now seen corresponding path program 30 times [2021-06-10 12:45:59,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:45:59,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151450023] [2021-06-10 12:45:59,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:45:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:45:59,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:59,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:59,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:59,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:59,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:59,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:45:59,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:59,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:59,412 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:45:59,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:45:59,423 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:59,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:59,433 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:45:59,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:59,446 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:45:59,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:59,466 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:45:59,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:45:59,482 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:45:59,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:45:59,498 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:45:59,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:45:59,512 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:45:59,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:45:59,530 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:45:59,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:45:59,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:45:59,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:45:59,554 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:59,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:59,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:45:59,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:45:59,568 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:45:59,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:45:59,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:59,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:45:59,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:59,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:59,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:59,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:45:59,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:45:59,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:45:59,609 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 12:45:59,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151450023] [2021-06-10 12:45:59,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:45:59,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:45:59,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936390464] [2021-06-10 12:45:59,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:45:59,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:45:59,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:45:59,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:45:59,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:45:59,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 742 places, 1226 transitions, 41642 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:45:59,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:45:59,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:45:59,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:46:08,840 INFO L129 PetriNetUnfolder]: 4169/14764 cut-off events. [2021-06-10 12:46:08,840 INFO L130 PetriNetUnfolder]: For 456125/456960 co-relation queries the response was YES. [2021-06-10 12:46:09,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85293 conditions, 14764 events. 4169/14764 cut-off events. For 456125/456960 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 181367 event pairs, 1693 based on Foata normal form. 202/14641 useless extension candidates. Maximal degree in co-relation 85033. Up to 4520 conditions per place. [2021-06-10 12:46:09,282 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 948 selfloop transitions, 422 changer transitions 0/1413 dead transitions. [2021-06-10 12:46:09,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 761 places, 1413 transitions, 47846 flow [2021-06-10 12:46:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:46:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:46:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1345 transitions. [2021-06-10 12:46:09,284 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4310897435897436 [2021-06-10 12:46:09,284 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1345 transitions. [2021-06-10 12:46:09,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1345 transitions. [2021-06-10 12:46:09,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:46:09,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1345 transitions. [2021-06-10 12:46:09,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 67.25) internal successors, (1345), 20 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states 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 12:46:09,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:46:09,288 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:46:09,288 INFO L185 Difference]: Start difference. First operand has 742 places, 1226 transitions, 41642 flow. Second operand 20 states and 1345 transitions. [2021-06-10 12:46:09,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 761 places, 1413 transitions, 47846 flow [2021-06-10 12:46:13,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 753 places, 1413 transitions, 47143 flow, removed 174 selfloop flow, removed 8 redundant places. [2021-06-10 12:46:13,313 INFO L241 Difference]: Finished difference. Result has 761 places, 1256 transitions, 43716 flow [2021-06-10 12:46:13,314 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=40939, PETRI_DIFFERENCE_MINUEND_PLACES=734, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=392, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=810, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43716, PETRI_PLACES=761, PETRI_TRANSITIONS=1256} [2021-06-10 12:46:13,314 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 619 predicate places. [2021-06-10 12:46:13,314 INFO L480 AbstractCegarLoop]: Abstraction has has 761 places, 1256 transitions, 43716 flow [2021-06-10 12:46:13,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:46:13,315 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:46:13,315 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:13,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-10 12:46:13,315 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:46:13,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:46:13,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1134206396, now seen corresponding path program 31 times [2021-06-10 12:46:13,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:46:13,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716193168] [2021-06-10 12:46:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:46:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:46:13,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:13,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:13,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:13,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:13,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:13,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:46:13,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:13,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:46:13,499 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:46:13,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:46:13,510 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:13,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:13,522 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:46:13,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:13,540 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:46:13,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:13,558 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:46:13,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:46:13,579 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:46:13,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:46:13,597 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:46:13,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:13,616 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:46:13,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:46:13,641 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:46:13,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:46:13,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:13,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:13,682 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:13,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:13,683 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:46:13,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:46:13,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:13,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:46:13,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:13,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:46:13,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:13,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:46:13,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:13,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:46:13,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716193168] [2021-06-10 12:46:13,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:46:13,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:46:13,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963285527] [2021-06-10 12:46:13,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:46:13,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:46:13,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:46:13,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:46:13,746 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:46:13,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 761 places, 1256 transitions, 43716 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:46:13,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:46:13,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:46:13,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:46:22,101 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2021-06-10 12:46:23,187 INFO L129 PetriNetUnfolder]: 4169/14763 cut-off events. [2021-06-10 12:46:23,187 INFO L130 PetriNetUnfolder]: For 476287/477124 co-relation queries the response was YES. [2021-06-10 12:46:23,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86074 conditions, 14763 events. 4169/14763 cut-off events. For 476287/477124 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 181272 event pairs, 1814 based on Foata normal form. 185/14609 useless extension candidates. Maximal degree in co-relation 85807. Up to 4520 conditions per place. [2021-06-10 12:46:23,469 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 967 selfloop transitions, 407 changer transitions 0/1417 dead transitions. [2021-06-10 12:46:23,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 781 places, 1417 transitions, 49242 flow [2021-06-10 12:46:23,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:46:23,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:46:23,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1403 transitions. [2021-06-10 12:46:23,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42826617826617824 [2021-06-10 12:46:23,470 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1403 transitions. [2021-06-10 12:46:23,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1403 transitions. [2021-06-10 12:46:23,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:46:23,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1403 transitions. [2021-06-10 12:46:23,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.80952380952381) internal successors, (1403), 21 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states 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 12:46:23,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:46:23,614 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:46:23,614 INFO L185 Difference]: Start difference. First operand has 761 places, 1256 transitions, 43716 flow. Second operand 21 states and 1403 transitions. [2021-06-10 12:46:23,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 781 places, 1417 transitions, 49242 flow [2021-06-10 12:46:27,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 774 places, 1417 transitions, 48676 flow, removed 251 selfloop flow, removed 7 redundant places. [2021-06-10 12:46:27,932 INFO L241 Difference]: Finished difference. Result has 781 places, 1273 transitions, 44671 flow [2021-06-10 12:46:27,934 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=43177, PETRI_DIFFERENCE_MINUEND_PLACES=754, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=390, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=849, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=44671, PETRI_PLACES=781, PETRI_TRANSITIONS=1273} [2021-06-10 12:46:27,934 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 639 predicate places. [2021-06-10 12:46:27,934 INFO L480 AbstractCegarLoop]: Abstraction has has 781 places, 1273 transitions, 44671 flow [2021-06-10 12:46:27,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:46:27,934 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:46:27,934 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:27,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-10 12:46:27,934 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:46:27,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:46:27,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1512559178, now seen corresponding path program 32 times [2021-06-10 12:46:27,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:46:27,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060784785] [2021-06-10 12:46:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:46:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:46:28,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:28,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:28,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:28,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:28,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:28,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:46:28,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:28,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:46:28,091 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:46:28,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:46:28,100 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:28,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:28,110 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:46:28,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:28,130 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:46:28,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:28,149 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:46:28,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:46:28,165 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-10 12:46:28,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-10 12:46:28,182 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:46:28,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:28,196 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:46:28,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:46:28,213 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:46:28,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:46:28,223 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:46:28,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:46:28,238 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:28,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:28,250 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:28,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:28,251 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:46:28,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:46:28,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:28,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:46:28,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:28,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:46:28,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:28,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:46:28,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:28,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:28,292 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 12:46:28,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060784785] [2021-06-10 12:46:28,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:46:28,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:46:28,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805393875] [2021-06-10 12:46:28,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:46:28,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:46:28,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:46:28,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:46:28,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:46:28,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 781 places, 1273 transitions, 44671 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:46:28,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:46:28,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:46:28,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:46:38,151 INFO L129 PetriNetUnfolder]: 4169/14764 cut-off events. [2021-06-10 12:46:38,151 INFO L130 PetriNetUnfolder]: For 487163/487998 co-relation queries the response was YES. [2021-06-10 12:46:38,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86485 conditions, 14764 events. 4169/14764 cut-off events. For 487163/487998 co-relation queries the response was YES. Maximal size of possible extension queue 918. Compared 181456 event pairs, 1634 based on Foata normal form. 214/14661 useless extension candidates. Maximal degree in co-relation 86210. Up to 4520 conditions per place. [2021-06-10 12:46:38,478 INFO L132 encePairwiseOnDemand]: 130/156 looper letters, 945 selfloop transitions, 427 changer transitions 0/1415 dead transitions. [2021-06-10 12:46:38,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 1415 transitions, 49537 flow [2021-06-10 12:46:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:46:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:46:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1340 transitions. [2021-06-10 12:46:38,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42948717948717946 [2021-06-10 12:46:38,480 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1340 transitions. [2021-06-10 12:46:38,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1340 transitions. [2021-06-10 12:46:38,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:46:38,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1340 transitions. [2021-06-10 12:46:38,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 67.0) internal successors, (1340), 20 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states 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 12:46:38,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:46:38,484 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:46:38,484 INFO L185 Difference]: Start difference. First operand has 781 places, 1273 transitions, 44671 flow. Second operand 20 states and 1340 transitions. [2021-06-10 12:46:38,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 800 places, 1415 transitions, 49537 flow [2021-06-10 12:46:42,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 784 places, 1415 transitions, 48646 flow, removed 243 selfloop flow, removed 16 redundant places. [2021-06-10 12:46:42,841 INFO L241 Difference]: Finished difference. Result has 789 places, 1285 transitions, 45232 flow [2021-06-10 12:46:42,842 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=43780, PETRI_DIFFERENCE_MINUEND_PLACES=765, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=415, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=846, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=45232, PETRI_PLACES=789, PETRI_TRANSITIONS=1285} [2021-06-10 12:46:42,842 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 647 predicate places. [2021-06-10 12:46:42,842 INFO L480 AbstractCegarLoop]: Abstraction has has 789 places, 1285 transitions, 45232 flow [2021-06-10 12:46:42,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:46:42,843 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:46:42,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:42,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-10 12:46:42,843 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:46:42,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:46:42,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1663230880, now seen corresponding path program 33 times [2021-06-10 12:46:42,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:46:42,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247259205] [2021-06-10 12:46:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:46:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:46:42,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:42,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:42,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:42,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:42,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:42,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:46:42,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:42,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:46:42,950 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:46:42,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:46:42,959 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:42,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:42,971 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:46:42,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:42,985 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:46:42,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:43,000 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-10 12:46:43,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-10 12:46:43,016 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:46:43,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:46:43,030 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:46:43,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:43,045 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:46:43,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:46:43,065 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:46:43,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:46:43,081 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:43,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:43,094 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:43,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:43,095 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:46:43,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:46:43,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:43,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:46:43,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:43,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:46:43,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:43,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:46:43,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:43,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:43,139 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 12:46:43,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247259205] [2021-06-10 12:46:43,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:46:43,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:46:43,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948365918] [2021-06-10 12:46:43,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:46:43,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:46:43,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:46:43,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:46:43,141 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:46:43,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 789 places, 1285 transitions, 45232 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:46:43,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:46:43,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:46:43,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:46:51,241 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-06-10 12:46:52,849 INFO L129 PetriNetUnfolder]: 4169/14753 cut-off events. [2021-06-10 12:46:52,850 INFO L130 PetriNetUnfolder]: For 489571/490417 co-relation queries the response was YES. [2021-06-10 12:46:53,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86745 conditions, 14753 events. 4169/14753 cut-off events. For 489571/490417 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 181104 event pairs, 1730 based on Foata normal form. 200/14624 useless extension candidates. Maximal degree in co-relation 86473. Up to 4520 conditions per place. [2021-06-10 12:46:53,149 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 937 selfloop transitions, 421 changer transitions 0/1401 dead transitions. [2021-06-10 12:46:53,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 809 places, 1401 transitions, 49612 flow [2021-06-10 12:46:53,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:46:53,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:46:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1397 transitions. [2021-06-10 12:46:53,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4264346764346764 [2021-06-10 12:46:53,151 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1397 transitions. [2021-06-10 12:46:53,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1397 transitions. [2021-06-10 12:46:53,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:46:53,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1397 transitions. [2021-06-10 12:46:53,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.52380952380952) internal successors, (1397), 21 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states 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 12:46:53,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:46:53,155 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:46:53,156 INFO L185 Difference]: Start difference. First operand has 789 places, 1285 transitions, 45232 flow. Second operand 21 states and 1397 transitions. [2021-06-10 12:46:53,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 809 places, 1401 transitions, 49612 flow [2021-06-10 12:46:57,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 799 places, 1401 transitions, 48981 flow, removed 239 selfloop flow, removed 10 redundant places. [2021-06-10 12:46:57,725 INFO L241 Difference]: Finished difference. Result has 806 places, 1297 transitions, 45990 flow [2021-06-10 12:46:57,726 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=44610, PETRI_DIFFERENCE_MINUEND_PLACES=779, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=864, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=45990, PETRI_PLACES=806, PETRI_TRANSITIONS=1297} [2021-06-10 12:46:57,726 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 664 predicate places. [2021-06-10 12:46:57,727 INFO L480 AbstractCegarLoop]: Abstraction has has 806 places, 1297 transitions, 45990 flow [2021-06-10 12:46:57,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:46:57,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:46:57,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:57,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-10 12:46:57,727 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:46:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:46:57,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1420278220, now seen corresponding path program 34 times [2021-06-10 12:46:57,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:46:57,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176762405] [2021-06-10 12:46:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:46:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:46:57,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:57,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:57,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:57,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:57,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:57,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:46:57,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:57,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:46:57,831 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:46:57,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:46:57,841 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:57,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:57,852 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:46:57,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:57,868 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:46:57,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:57,884 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:46:57,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:46:57,899 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:46:57,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:46:57,921 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:46:57,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:46:57,939 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:46:57,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:46:57,959 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:46:57,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:46:57,975 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:57,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:57,989 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:46:57,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:46:57,990 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:46:57,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:46:58,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:58,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:46:58,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:58,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:46:58,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:58,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:46:58,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:46:58,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:46:58,037 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 12:46:58,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176762405] [2021-06-10 12:46:58,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:46:58,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:46:58,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857994839] [2021-06-10 12:46:58,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:46:58,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:46:58,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:46:58,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:46:58,038 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:46:58,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 806 places, 1297 transitions, 45990 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:46:58,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:46:58,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:46:58,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:47:07,963 INFO L129 PetriNetUnfolder]: 4166/14813 cut-off events. [2021-06-10 12:47:07,963 INFO L130 PetriNetUnfolder]: For 511168/511981 co-relation queries the response was YES. [2021-06-10 12:47:08,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87785 conditions, 14813 events. 4166/14813 cut-off events. For 511168/511981 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 182038 event pairs, 1887 based on Foata normal form. 161/14627 useless extension candidates. Maximal degree in co-relation 87507. Up to 4520 conditions per place. [2021-06-10 12:47:08,254 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 988 selfloop transitions, 435 changer transitions 0/1466 dead transitions. [2021-06-10 12:47:08,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 826 places, 1466 transitions, 52397 flow [2021-06-10 12:47:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:47:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:47:08,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1402 transitions. [2021-06-10 12:47:08,256 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42796092796092794 [2021-06-10 12:47:08,256 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1402 transitions. [2021-06-10 12:47:08,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1402 transitions. [2021-06-10 12:47:08,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:47:08,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1402 transitions. [2021-06-10 12:47:08,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.76190476190476) internal successors, (1402), 21 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 12:47:08,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:47:08,259 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:47:08,259 INFO L185 Difference]: Start difference. First operand has 806 places, 1297 transitions, 45990 flow. Second operand 21 states and 1402 transitions. [2021-06-10 12:47:08,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 826 places, 1466 transitions, 52397 flow [2021-06-10 12:47:12,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 813 places, 1466 transitions, 51412 flow, removed 230 selfloop flow, removed 13 redundant places. [2021-06-10 12:47:12,808 INFO L241 Difference]: Finished difference. Result has 820 places, 1326 transitions, 47449 flow [2021-06-10 12:47:12,809 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=45014, PETRI_DIFFERENCE_MINUEND_PLACES=793, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=406, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=871, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=47449, PETRI_PLACES=820, PETRI_TRANSITIONS=1326} [2021-06-10 12:47:12,810 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 678 predicate places. [2021-06-10 12:47:12,810 INFO L480 AbstractCegarLoop]: Abstraction has has 820 places, 1326 transitions, 47449 flow [2021-06-10 12:47:12,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:47:12,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:47:12,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:12,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-10 12:47:12,810 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:47:12,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:47:12,811 INFO L82 PathProgramCache]: Analyzing trace with hash -165248480, now seen corresponding path program 35 times [2021-06-10 12:47:12,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:47:12,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917201513] [2021-06-10 12:47:12,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:47:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:47:12,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:12,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:12,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:12,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:47:12,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:12,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:47:12,911 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:47:12,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:47:12,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:12,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:12,929 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:47:12,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:47:12,943 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:47:12,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:47:12,957 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:47:12,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:47:12,970 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:47:12,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:47:12,985 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:47:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:47:13,000 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:47:13,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:47:13,021 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:47:13,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:47:13,037 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:13,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:13,051 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:13,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:13,052 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:47:13,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:47:13,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:13,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:47:13,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:13,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:47:13,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:13,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:47:13,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:13,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:13,098 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 12:47:13,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917201513] [2021-06-10 12:47:13,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:47:13,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:47:13,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164456808] [2021-06-10 12:47:13,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:47:13,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:47:13,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:47:13,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:47:13,100 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:47:13,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 820 places, 1326 transitions, 47449 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:47:13,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:47:13,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:47:13,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:47:23,138 INFO L129 PetriNetUnfolder]: 4166/14807 cut-off events. [2021-06-10 12:47:23,138 INFO L130 PetriNetUnfolder]: For 523798/524623 co-relation queries the response was YES. [2021-06-10 12:47:23,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87889 conditions, 14807 events. 4166/14807 cut-off events. For 523798/524623 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 181802 event pairs, 1829 based on Foata normal form. 170/14637 useless extension candidates. Maximal degree in co-relation 87608. Up to 4520 conditions per place. [2021-06-10 12:47:23,438 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 986 selfloop transitions, 436 changer transitions 0/1465 dead transitions. [2021-06-10 12:47:23,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 840 places, 1465 transitions, 52437 flow [2021-06-10 12:47:23,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:47:23,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:47:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1401 transitions. [2021-06-10 12:47:23,439 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42765567765567764 [2021-06-10 12:47:23,440 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1401 transitions. [2021-06-10 12:47:23,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1401 transitions. [2021-06-10 12:47:23,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:47:23,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1401 transitions. [2021-06-10 12:47:23,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.71428571428571) internal successors, (1401), 21 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states 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 12:47:23,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:47:23,443 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:47:23,443 INFO L185 Difference]: Start difference. First operand has 820 places, 1326 transitions, 47449 flow. Second operand 21 states and 1401 transitions. [2021-06-10 12:47:23,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 840 places, 1465 transitions, 52437 flow [2021-06-10 12:47:28,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 830 places, 1465 transitions, 51455 flow, removed 211 selfloop flow, removed 10 redundant places. [2021-06-10 12:47:28,245 INFO L241 Difference]: Finished difference. Result has 836 places, 1337 transitions, 47852 flow [2021-06-10 12:47:28,246 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=46467, PETRI_DIFFERENCE_MINUEND_PLACES=810, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=425, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=890, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=47852, PETRI_PLACES=836, PETRI_TRANSITIONS=1337} [2021-06-10 12:47:28,247 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 694 predicate places. [2021-06-10 12:47:28,247 INFO L480 AbstractCegarLoop]: Abstraction has has 836 places, 1337 transitions, 47852 flow [2021-06-10 12:47:28,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:47:28,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:47:28,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:28,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-10 12:47:28,247 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:47:28,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:47:28,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1679367658, now seen corresponding path program 36 times [2021-06-10 12:47:28,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:47:28,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380603077] [2021-06-10 12:47:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:47:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:47:28,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:28,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:28,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:28,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:28,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:28,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:47:28,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:28,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:47:28,350 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:47:28,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:47:28,360 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:28,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:28,371 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:47:28,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:47:28,386 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:47:28,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:47:28,401 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:47:28,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:47:28,417 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:47:28,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:47:28,435 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:47:28,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:47:28,454 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:47:28,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:47:28,482 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:47:28,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:47:28,506 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:28,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:28,529 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:28,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:28,530 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:47:28,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:47:28,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:28,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:47:28,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:28,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:47:28,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:28,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:47:28,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:28,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:28,592 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 12:47:28,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380603077] [2021-06-10 12:47:28,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:47:28,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:47:28,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172580693] [2021-06-10 12:47:28,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:47:28,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:47:28,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:47:28,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:47:28,594 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:47:28,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 1337 transitions, 47852 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:47:28,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:47:28,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:47:28,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:47:36,983 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-06-10 12:47:39,123 INFO L129 PetriNetUnfolder]: 4163/14824 cut-off events. [2021-06-10 12:47:39,124 INFO L130 PetriNetUnfolder]: For 533530/534406 co-relation queries the response was YES. [2021-06-10 12:47:39,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88534 conditions, 14824 events. 4163/14824 cut-off events. For 533530/534406 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 181910 event pairs, 1679 based on Foata normal form. 179/14665 useless extension candidates. Maximal degree in co-relation 88249. Up to 3808 conditions per place. [2021-06-10 12:47:39,443 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 966 selfloop transitions, 507 changer transitions 0/1516 dead transitions. [2021-06-10 12:47:39,443 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 856 places, 1516 transitions, 54554 flow [2021-06-10 12:47:39,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:47:39,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:47:39,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1397 transitions. [2021-06-10 12:47:39,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4264346764346764 [2021-06-10 12:47:39,445 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1397 transitions. [2021-06-10 12:47:39,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1397 transitions. [2021-06-10 12:47:39,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:47:39,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1397 transitions. [2021-06-10 12:47:39,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.52380952380952) internal successors, (1397), 21 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states 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 12:47:39,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:47:39,456 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:47:39,456 INFO L185 Difference]: Start difference. First operand has 836 places, 1337 transitions, 47852 flow. Second operand 21 states and 1397 transitions. [2021-06-10 12:47:39,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 856 places, 1516 transitions, 54554 flow [2021-06-10 12:47:44,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 1516 transitions, 53607 flow, removed 222 selfloop flow, removed 9 redundant places. [2021-06-10 12:47:44,258 INFO L241 Difference]: Finished difference. Result has 856 places, 1367 transitions, 49546 flow [2021-06-10 12:47:44,259 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=46925, PETRI_DIFFERENCE_MINUEND_PLACES=827, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=477, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=49546, PETRI_PLACES=856, PETRI_TRANSITIONS=1367} [2021-06-10 12:47:44,259 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 714 predicate places. [2021-06-10 12:47:44,259 INFO L480 AbstractCegarLoop]: Abstraction has has 856 places, 1367 transitions, 49546 flow [2021-06-10 12:47:44,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:47:44,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:47:44,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:44,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-10 12:47:44,260 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:47:44,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:47:44,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1868680228, now seen corresponding path program 37 times [2021-06-10 12:47:44,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:47:44,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701131806] [2021-06-10 12:47:44,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:47:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:47:44,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:44,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:44,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:44,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:44,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:47:44,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:44,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:47:44,354 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:47:44,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:47:44,364 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:44,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:44,375 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:47:44,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:47:44,391 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:47:44,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:47:44,406 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:47:44,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:47:44,422 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:47:44,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:47:44,439 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:47:44,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:47:44,459 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:47:44,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:47:44,483 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:47:44,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:47:44,499 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:47:44,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:47:44,520 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:44,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:44,539 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:47:44,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:47:44,540 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:47:44,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:47:44,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:44,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:47:44,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:44,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:47:44,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:44,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:47:44,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:47:44,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:47:44,601 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 12:47:44,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701131806] [2021-06-10 12:47:44,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:47:44,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:47:44,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874362525] [2021-06-10 12:47:44,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:47:44,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:47:44,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:47:44,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:47:44,603 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:47:44,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 856 places, 1367 transitions, 49546 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:47:44,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:47:44,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:47:44,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:47:54,776 INFO L129 PetriNetUnfolder]: 4160/14889 cut-off events. [2021-06-10 12:47:54,776 INFO L130 PetriNetUnfolder]: For 563947/564762 co-relation queries the response was YES. [2021-06-10 12:47:55,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89608 conditions, 14889 events. 4160/14889 cut-off events. For 563947/564762 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 182934 event pairs, 1889 based on Foata normal form. 149/14688 useless extension candidates. Maximal degree in co-relation 89316. Up to 5008 conditions per place. [2021-06-10 12:47:55,106 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 1003 selfloop transitions, 507 changer transitions 0/1553 dead transitions. [2021-06-10 12:47:55,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 876 places, 1553 transitions, 56471 flow [2021-06-10 12:47:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:47:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:47:55,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1402 transitions. [2021-06-10 12:47:55,108 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42796092796092794 [2021-06-10 12:47:55,108 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1402 transitions. [2021-06-10 12:47:55,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1402 transitions. [2021-06-10 12:47:55,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:47:55,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1402 transitions. [2021-06-10 12:47:55,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.76190476190476) internal successors, (1402), 21 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states 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 12:47:55,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:47:55,111 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:47:55,111 INFO L185 Difference]: Start difference. First operand has 856 places, 1367 transitions, 49546 flow. Second operand 21 states and 1402 transitions. [2021-06-10 12:47:55,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 876 places, 1553 transitions, 56471 flow [2021-06-10 12:48:00,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 869 places, 1553 transitions, 55751 flow, removed 200 selfloop flow, removed 7 redundant places. [2021-06-10 12:48:00,087 INFO L241 Difference]: Finished difference. Result has 878 places, 1397 transitions, 51604 flow [2021-06-10 12:48:00,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=48835, PETRI_DIFFERENCE_MINUEND_PLACES=849, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=477, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=51604, PETRI_PLACES=878, PETRI_TRANSITIONS=1397} [2021-06-10 12:48:00,088 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 736 predicate places. [2021-06-10 12:48:00,088 INFO L480 AbstractCegarLoop]: Abstraction has has 878 places, 1397 transitions, 51604 flow [2021-06-10 12:48:00,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:48:00,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:48:00,088 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:00,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-10 12:48:00,088 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:48:00,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:48:00,088 INFO L82 PathProgramCache]: Analyzing trace with hash -629000510, now seen corresponding path program 38 times [2021-06-10 12:48:00,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:48:00,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628489491] [2021-06-10 12:48:00,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:48:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:48:00,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:00,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:00,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:00,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:00,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:00,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:48:00,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:00,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:48:00,187 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:48:00,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:48:00,197 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:00,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:00,206 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-10 12:48:00,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:48:00,222 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:48:00,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:48:00,239 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:48:00,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:48:00,254 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:48:00,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:48:00,270 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:48:00,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:48:00,287 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:48:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:48:00,306 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:48:00,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:48:00,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:48:00,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:48:00,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:00,348 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:00,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:00,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:48:00,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:48:00,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:00,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:48:00,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:00,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:48:00,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:00,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:48:00,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:00,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:48:00,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628489491] [2021-06-10 12:48:00,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:48:00,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:48:00,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725228332] [2021-06-10 12:48:00,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:48:00,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:48:00,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:48:00,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:48:00,399 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:48:00,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 1397 transitions, 51604 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:48:00,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:48:00,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:48:00,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:48:10,968 INFO L129 PetriNetUnfolder]: 4160/14887 cut-off events. [2021-06-10 12:48:10,968 INFO L130 PetriNetUnfolder]: For 589583/590398 co-relation queries the response was YES. [2021-06-10 12:48:11,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90199 conditions, 14887 events. 4160/14887 cut-off events. For 589583/590398 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 183001 event pairs, 1889 based on Foata normal form. 149/14692 useless extension candidates. Maximal degree in co-relation 89898. Up to 5008 conditions per place. [2021-06-10 12:48:11,330 INFO L132 encePairwiseOnDemand]: 132/156 looper letters, 993 selfloop transitions, 509 changer transitions 0/1545 dead transitions. [2021-06-10 12:48:11,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 898 places, 1545 transitions, 57103 flow [2021-06-10 12:48:11,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-10 12:48:11,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-10 12:48:11,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1395 transitions. [2021-06-10 12:48:11,332 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4258241758241758 [2021-06-10 12:48:11,332 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1395 transitions. [2021-06-10 12:48:11,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1395 transitions. [2021-06-10 12:48:11,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:48:11,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1395 transitions. [2021-06-10 12:48:11,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 66.42857142857143) internal successors, (1395), 21 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 12:48:11,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:48:11,335 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 156.0) internal successors, (3432), 22 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states 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 12:48:11,335 INFO L185 Difference]: Start difference. First operand has 878 places, 1397 transitions, 51604 flow. Second operand 21 states and 1395 transitions. [2021-06-10 12:48:11,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 898 places, 1545 transitions, 57103 flow [2021-06-10 12:48:16,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 890 places, 1545 transitions, 56479 flow, removed 214 selfloop flow, removed 8 redundant places. [2021-06-10 12:48:16,699 INFO L241 Difference]: Finished difference. Result has 896 places, 1408 transitions, 52493 flow [2021-06-10 12:48:16,700 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=50980, PETRI_DIFFERENCE_MINUEND_PLACES=870, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=52493, PETRI_PLACES=896, PETRI_TRANSITIONS=1408} [2021-06-10 12:48:16,701 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 754 predicate places. [2021-06-10 12:48:16,701 INFO L480 AbstractCegarLoop]: Abstraction has has 896 places, 1408 transitions, 52493 flow [2021-06-10 12:48:16,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:48:16,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:48:16,701 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:16,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-10 12:48:16,701 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:48:16,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:48:16,701 INFO L82 PathProgramCache]: Analyzing trace with hash 713280704, now seen corresponding path program 39 times [2021-06-10 12:48:16,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:48:16,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979415138] [2021-06-10 12:48:16,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:48:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:48:16,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:16,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:16,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:16,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:16,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:16,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:48:16,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:16,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:48:16,806 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:48:16,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:48:16,816 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:16,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:16,827 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-10 12:48:16,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:48:16,838 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:48:16,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:48:16,853 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:48:16,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:48:16,875 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:48:16,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:48:16,894 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:48:16,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:48:16,914 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:48:16,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:48:16,942 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:48:16,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:48:16,964 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:16,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:16,982 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:16,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:16,983 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:48:16,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:48:17,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:17,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:48:17,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:17,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:48:17,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:17,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:48:17,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:17,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:48:17,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979415138] [2021-06-10 12:48:17,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:48:17,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:48:17,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146492809] [2021-06-10 12:48:17,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:48:17,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:48:17,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:48:17,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:48:17,047 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:48:17,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 896 places, 1408 transitions, 52493 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:48:17,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:48:17,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:48:17,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:48:27,451 INFO L129 PetriNetUnfolder]: 4157/15001 cut-off events. [2021-06-10 12:48:27,451 INFO L130 PetriNetUnfolder]: For 625998/626795 co-relation queries the response was YES. [2021-06-10 12:48:27,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91360 conditions, 15001 events. 4157/15001 cut-off events. For 625998/626795 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 184119 event pairs, 2330 based on Foata normal form. 133/14788 useless extension candidates. Maximal degree in co-relation 91054. Up to 6031 conditions per place. [2021-06-10 12:48:27,797 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 962 selfloop transitions, 529 changer transitions 0/1534 dead transitions. [2021-06-10 12:48:27,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 915 places, 1534 transitions, 58001 flow [2021-06-10 12:48:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:48:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:48:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1320 transitions. [2021-06-10 12:48:27,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2021-06-10 12:48:27,799 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1320 transitions. [2021-06-10 12:48:27,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1320 transitions. [2021-06-10 12:48:27,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:48:27,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1320 transitions. [2021-06-10 12:48:27,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.0) internal successors, (1320), 20 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states 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 12:48:27,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:48:27,803 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:48:27,803 INFO L185 Difference]: Start difference. First operand has 896 places, 1408 transitions, 52493 flow. Second operand 20 states and 1320 transitions. [2021-06-10 12:48:27,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 915 places, 1534 transitions, 58001 flow [2021-06-10 12:48:33,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 905 places, 1534 transitions, 57252 flow, removed 227 selfloop flow, removed 10 redundant places. [2021-06-10 12:48:33,381 INFO L241 Difference]: Finished difference. Result has 912 places, 1436 transitions, 54375 flow [2021-06-10 12:48:33,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=51762, PETRI_DIFFERENCE_MINUEND_PLACES=886, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=501, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=54375, PETRI_PLACES=912, PETRI_TRANSITIONS=1436} [2021-06-10 12:48:33,382 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 770 predicate places. [2021-06-10 12:48:33,382 INFO L480 AbstractCegarLoop]: Abstraction has has 912 places, 1436 transitions, 54375 flow [2021-06-10 12:48:33,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:48:33,382 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:48:33,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:33,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-10 12:48:33,383 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:48:33,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:48:33,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1618526484, now seen corresponding path program 40 times [2021-06-10 12:48:33,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:48:33,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420332733] [2021-06-10 12:48:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:48:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:48:33,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:33,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:33,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:33,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:33,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:33,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:48:33,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:33,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:48:33,506 INFO L142 QuantifierPusher]: treesize reduction 20, result has 51.2 percent of original size [2021-06-10 12:48:33,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 12:48:33,524 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:48:33,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:33,536 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-06-10 12:48:33,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:48:33,546 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:48:33,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:48:33,561 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:48:33,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:48:33,577 INFO L142 QuantifierPusher]: treesize reduction 23, result has 60.3 percent of original size [2021-06-10 12:48:33,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-10 12:48:33,608 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.6 percent of original size [2021-06-10 12:48:33,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-10 12:48:33,669 INFO L142 QuantifierPusher]: treesize reduction 36, result has 60.0 percent of original size [2021-06-10 12:48:33,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-10 12:48:33,718 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.7 percent of original size [2021-06-10 12:48:33,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-10 12:48:33,793 INFO L142 QuantifierPusher]: treesize reduction 36, result has 66.7 percent of original size [2021-06-10 12:48:33,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-06-10 12:48:33,815 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-06-10 12:48:33,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-10 12:48:33,849 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:48:33,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:33,868 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-10 12:48:33,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:33,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:48:33,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:48:33,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:33,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:48:33,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:33,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:48:33,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:48:33,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:33,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:33,935 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 12:48:33,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420332733] [2021-06-10 12:48:33,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:48:33,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-10 12:48:33,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341679084] [2021-06-10 12:48:33,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-10 12:48:33,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:48:33,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-10 12:48:33,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-06-10 12:48:33,937 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:48:33,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 912 places, 1436 transitions, 54375 flow. Second operand has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 12:48:33,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:48:33,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:48:33,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:48:44,706 INFO L129 PetriNetUnfolder]: 4154/15051 cut-off events. [2021-06-10 12:48:44,706 INFO L130 PetriNetUnfolder]: For 662519/663306 co-relation queries the response was YES. [2021-06-10 12:48:45,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92490 conditions, 15051 events. 4154/15051 cut-off events. For 662519/663306 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 184833 event pairs, 2353 based on Foata normal form. 128/14825 useless extension candidates. Maximal degree in co-relation 92179. Up to 6031 conditions per place. [2021-06-10 12:48:45,058 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 997 selfloop transitions, 537 changer transitions 0/1577 dead transitions. [2021-06-10 12:48:45,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 1577 transitions, 60203 flow [2021-06-10 12:48:45,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:48:45,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:48:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1331 transitions. [2021-06-10 12:48:45,060 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4266025641025641 [2021-06-10 12:48:45,060 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1331 transitions. [2021-06-10 12:48:45,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1331 transitions. [2021-06-10 12:48:45,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:48:45,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1331 transitions. [2021-06-10 12:48:45,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.55) internal successors, (1331), 20 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states 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 12:48:45,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:48:45,063 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:48:45,063 INFO L185 Difference]: Start difference. First operand has 912 places, 1436 transitions, 54375 flow. Second operand 20 states and 1331 transitions. [2021-06-10 12:48:45,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 1577 transitions, 60203 flow [2021-06-10 12:48:50,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 920 places, 1577 transitions, 59438 flow, removed 216 selfloop flow, removed 11 redundant places. [2021-06-10 12:48:51,027 INFO L241 Difference]: Finished difference. Result has 927 places, 1467 transitions, 56349 flow [2021-06-10 12:48:51,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=53610, PETRI_DIFFERENCE_MINUEND_PLACES=901, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=506, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=56349, PETRI_PLACES=927, PETRI_TRANSITIONS=1467} [2021-06-10 12:48:51,029 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 785 predicate places. [2021-06-10 12:48:51,029 INFO L480 AbstractCegarLoop]: Abstraction has has 927 places, 1467 transitions, 56349 flow [2021-06-10 12:48:51,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 62.10526315789474) internal successors, (1180), 19 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 12:48:51,029 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:48:51,029 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:51,029 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-10 12:48:51,029 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:48:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:48:51,030 INFO L82 PathProgramCache]: Analyzing trace with hash 771999210, now seen corresponding path program 41 times [2021-06-10 12:48:51,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:48:51,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727599699] [2021-06-10 12:48:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:48:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:48:51,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:51,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:51,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:51,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:51,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:48:51,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:51,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:48:51,134 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:48:51,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:48:51,145 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:51,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:51,156 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-10 12:48:51,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:48:51,168 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:48:51,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:48:51,185 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:48:51,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:48:51,204 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:48:51,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:48:51,226 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:48:51,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:48:51,249 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:48:51,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:48:51,276 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:48:51,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:48:51,292 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:48:51,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:48:51,314 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:51,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:51,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:48:51,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:48:51,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:48:51,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:48:51,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:51,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:48:51,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:51,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:48:51,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:51,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:48:51,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:48:51,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:48:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:48:51,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727599699] [2021-06-10 12:48:51,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:48:51,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:48:51,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748216008] [2021-06-10 12:48:51,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:48:51,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:48:51,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:48:51,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:48:51,400 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:48:51,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 1467 transitions, 56349 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:48:51,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:48:51,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:48:51,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:49:02,486 INFO L129 PetriNetUnfolder]: 4151/15087 cut-off events. [2021-06-10 12:49:02,486 INFO L130 PetriNetUnfolder]: For 696989/697776 co-relation queries the response was YES. [2021-06-10 12:49:02,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93428 conditions, 15087 events. 4151/15087 cut-off events. For 696989/697776 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 185403 event pairs, 2363 based on Foata normal form. 135/14869 useless extension candidates. Maximal degree in co-relation 93114. Up to 6031 conditions per place. [2021-06-10 12:49:02,897 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 1001 selfloop transitions, 548 changer transitions 0/1592 dead transitions. [2021-06-10 12:49:02,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 946 places, 1592 transitions, 62054 flow [2021-06-10 12:49:02,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:49:02,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:49:02,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1325 transitions. [2021-06-10 12:49:02,899 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42467948717948717 [2021-06-10 12:49:02,899 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1325 transitions. [2021-06-10 12:49:02,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1325 transitions. [2021-06-10 12:49:02,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:49:02,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1325 transitions. [2021-06-10 12:49:02,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.25) internal successors, (1325), 20 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states 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 12:49:02,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:49:02,902 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:49:02,902 INFO L185 Difference]: Start difference. First operand has 927 places, 1467 transitions, 56349 flow. Second operand 20 states and 1325 transitions. [2021-06-10 12:49:02,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 946 places, 1592 transitions, 62054 flow [2021-06-10 12:49:08,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 939 places, 1592 transitions, 61301 flow, removed 226 selfloop flow, removed 7 redundant places. [2021-06-10 12:49:08,912 INFO L241 Difference]: Finished difference. Result has 945 places, 1491 transitions, 58322 flow [2021-06-10 12:49:08,913 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=55596, PETRI_DIFFERENCE_MINUEND_PLACES=920, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=524, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=925, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=58322, PETRI_PLACES=945, PETRI_TRANSITIONS=1491} [2021-06-10 12:49:08,913 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 803 predicate places. [2021-06-10 12:49:08,913 INFO L480 AbstractCegarLoop]: Abstraction has has 945 places, 1491 transitions, 58322 flow [2021-06-10 12:49:08,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:49:08,913 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:49:08,914 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:08,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-10 12:49:08,914 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:49:08,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:49:08,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1892157554, now seen corresponding path program 42 times [2021-06-10 12:49:08,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:49:08,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967481032] [2021-06-10 12:49:08,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:49:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:49:09,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:09,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:49:09,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:09,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:49:09,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:09,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:49:09,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:09,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:49:09,025 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:49:09,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:49:09,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:49:09,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:49:09,046 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-10 12:49:09,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:49:09,057 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:49:09,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:49:09,073 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:49:09,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:49:09,090 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:49:09,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:49:09,109 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:49:09,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:49:09,129 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:49:09,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:49:09,157 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-10 12:49:09,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-10 12:49:09,180 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:49:09,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:49:09,197 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:49:09,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:49:09,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:49:09,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:49:09,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:09,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:49:09,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:09,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:49:09,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:09,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:49:09,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:09,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:49:09,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:49:09,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967481032] [2021-06-10 12:49:09,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:49:09,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:49:09,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928323958] [2021-06-10 12:49:09,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:49:09,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:49:09,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:49:09,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:49:09,263 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:49:09,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 1491 transitions, 58322 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:49:09,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:49:09,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:49:09,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:49:20,560 INFO L129 PetriNetUnfolder]: 4148/15115 cut-off events. [2021-06-10 12:49:20,560 INFO L130 PetriNetUnfolder]: For 734024/734878 co-relation queries the response was YES. [2021-06-10 12:49:21,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94448 conditions, 15115 events. 4148/15115 cut-off events. For 734024/734878 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 185774 event pairs, 2356 based on Foata normal form. 152/14920 useless extension candidates. Maximal degree in co-relation 94129. Up to 6001 conditions per place. [2021-06-10 12:49:21,100 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 997 selfloop transitions, 574 changer transitions 0/1614 dead transitions. [2021-06-10 12:49:21,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 1614 transitions, 64154 flow [2021-06-10 12:49:21,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:49:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:49:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1320 transitions. [2021-06-10 12:49:21,102 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2021-06-10 12:49:21,102 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1320 transitions. [2021-06-10 12:49:21,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1320 transitions. [2021-06-10 12:49:21,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:49:21,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1320 transitions. [2021-06-10 12:49:21,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.0) internal successors, (1320), 20 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states 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 12:49:21,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:49:21,105 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:49:21,105 INFO L185 Difference]: Start difference. First operand has 945 places, 1491 transitions, 58322 flow. Second operand 20 states and 1320 transitions. [2021-06-10 12:49:21,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 1614 transitions, 64154 flow [2021-06-10 12:49:27,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 1614 transitions, 63466 flow, removed 240 selfloop flow, removed 8 redundant places. [2021-06-10 12:49:27,464 INFO L241 Difference]: Finished difference. Result has 962 places, 1518 transitions, 60526 flow [2021-06-10 12:49:27,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=57637, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=547, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=926, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=60526, PETRI_PLACES=962, PETRI_TRANSITIONS=1518} [2021-06-10 12:49:27,465 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, 820 predicate places. [2021-06-10 12:49:27,465 INFO L480 AbstractCegarLoop]: Abstraction has has 962 places, 1518 transitions, 60526 flow [2021-06-10 12:49:27,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:49:27,466 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:49:27,466 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:27,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-10 12:49:27,466 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:49:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:49:27,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1016902378, now seen corresponding path program 43 times [2021-06-10 12:49:27,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:49:27,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023709237] [2021-06-10 12:49:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:49:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:49:27,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:27,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:49:27,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:27,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:49:27,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:27,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:49:27,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:27,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:49:27,565 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-10 12:49:27,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-10 12:49:27,575 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:49:27,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:49:27,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-10 12:49:27,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 12:49:27,599 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:49:27,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:49:27,615 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-10 12:49:27,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 12:49:27,633 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-10 12:49:27,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-10 12:49:27,654 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-10 12:49:27,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-10 12:49:27,679 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-10 12:49:27,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 12:49:27,704 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-10 12:49:27,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-10 12:49:27,719 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-10 12:49:27,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 12:49:27,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:49:27,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:49:27,758 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-10 12:49:27,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 12:49:27,759 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-10 12:49:27,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:49:27,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:27,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:49:27,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:27,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:49:27,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:27,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 12:49:27,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:49:27,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:49:27,826 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 12:49:27,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023709237] [2021-06-10 12:49:27,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:49:27,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-10 12:49:27,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416052436] [2021-06-10 12:49:27,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-10 12:49:27,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:49:27,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-10 12:49:27,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-10 12:49:27,828 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 156 [2021-06-10 12:49:27,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 1518 transitions, 60526 flow. Second operand has 18 states, 18 states have (on average 62.27777777777778) internal successors, (1121), 18 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states 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 12:49:27,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:49:27,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 156 [2021-06-10 12:49:27,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:49:39,444 INFO L129 PetriNetUnfolder]: 4145/15164 cut-off events. [2021-06-10 12:49:39,444 INFO L130 PetriNetUnfolder]: For 779533/780377 co-relation queries the response was YES. [2021-06-10 12:49:39,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95631 conditions, 15164 events. 4145/15164 cut-off events. For 779533/780377 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 186636 event pairs, 2355 based on Foata normal form. 141/14951 useless extension candidates. Maximal degree in co-relation 95307. Up to 6001 conditions per place. [2021-06-10 12:49:39,789 INFO L132 encePairwiseOnDemand]: 133/156 looper letters, 1041 selfloop transitions, 572 changer transitions 0/1656 dead transitions. [2021-06-10 12:49:39,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 981 places, 1656 transitions, 66706 flow [2021-06-10 12:49:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-10 12:49:39,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-10 12:49:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1331 transitions. [2021-06-10 12:49:39,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4266025641025641 [2021-06-10 12:49:39,791 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1331 transitions. [2021-06-10 12:49:39,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1331 transitions. [2021-06-10 12:49:39,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:49:39,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1331 transitions. [2021-06-10 12:49:39,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 66.55) internal successors, (1331), 20 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states 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 12:49:39,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:49:39,793 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 156.0) internal successors, (3276), 21 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states 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 12:49:39,793 INFO L185 Difference]: Start difference. First operand has 962 places, 1518 transitions, 60526 flow. Second operand 20 states and 1331 transitions. [2021-06-10 12:49:39,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 981 places, 1656 transitions, 66706 flow