/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 15:26:26,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 15:26:26,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 15:26:26,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 15:26:26,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 15:26:26,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 15:26:26,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 15:26:26,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 15:26:26,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 15:26:26,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 15:26:26,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 15:26:26,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 15:26:26,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 15:26:26,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 15:26:26,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 15:26:26,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 15:26:26,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 15:26:26,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 15:26:26,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 15:26:26,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 15:26:26,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 15:26:26,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 15:26:26,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 15:26:26,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 15:26:26,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 15:26:26,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 15:26:26,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 15:26:26,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 15:26:26,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 15:26:26,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 15:26:26,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 15:26:26,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 15:26:26,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 15:26:26,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 15:26:26,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 15:26:26,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 15:26:26,886 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 15:26:26,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 15:26:26,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 15:26:26,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 15:26:26,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 15:26:26,926 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 15:26:26,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 15:26:26,926 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 15:26:26,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 15:26:26,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 15:26:26,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 15:26:26,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 15:26:26,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 15:26:26,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 15:26:26,928 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 15:26:26,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 15:26:26,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 15:26:26,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 15:26:26,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 15:26:26,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 15:26:26,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 15:26:26,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 15:26:26,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 15:26:26,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 15:26:26,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 15:26:26,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 15:26:26,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 15:26:26,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 15:26:26,932 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 15:26:26,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 15:26:26,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 15:26:26,933 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 15:26:27,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 15:26:27,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 15:26:27,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 15:26:27,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 15:26:27,337 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 15:26:27,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2021-04-28 15:26:27,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e21f463f/46d56b41bc884f00a9ff1247fd1ac933/FLAG442cc54c4 [2021-04-28 15:26:28,200 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 15:26:28,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2021-04-28 15:26:28,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e21f463f/46d56b41bc884f00a9ff1247fd1ac933/FLAG442cc54c4 [2021-04-28 15:26:28,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e21f463f/46d56b41bc884f00a9ff1247fd1ac933 [2021-04-28 15:26:28,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 15:26:28,465 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 15:26:28,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 15:26:28,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 15:26:28,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 15:26:28,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 03:26:28" (1/1) ... [2021-04-28 15:26:28,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdc68ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:28, skipping insertion in model container [2021-04-28 15:26:28,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 03:26:28" (1/1) ... [2021-04-28 15:26:28,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 15:26:28,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 15:26:28,834 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30247,30260] [2021-04-28 15:26:28,846 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30452,30465] [2021-04-28 15:26:28,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 15:26:28,874 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 15:26:28,956 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30247,30260] [2021-04-28 15:26:28,960 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i[30452,30465] [2021-04-28 15:26:28,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 15:26:29,132 INFO L208 MainTranslator]: Completed translation [2021-04-28 15:26:29,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29 WrapperNode [2021-04-28 15:26:29,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 15:26:29,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 15:26:29,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 15:26:29,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 15:26:29,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 15:26:29,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 15:26:29,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 15:26:29,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 15:26:29,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (1/1) ... [2021-04-28 15:26:29,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 15:26:29,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 15:26:29,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 15:26:29,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 15:26:29,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (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 [2021-04-28 15:26:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2021-04-28 15:26:29,310 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2021-04-28 15:26:29,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-28 15:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2021-04-28 15:26:29,311 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2021-04-28 15:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 15:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-04-28 15:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 15:26:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 15:26:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 15:26:29,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 15:26:29,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 15:26:29,314 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 15:26:29,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 15:26:29,855 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-04-28 15:26:29,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 03:26:29 BoogieIcfgContainer [2021-04-28 15:26:29,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 15:26:29,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 15:26:29,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 15:26:29,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 15:26:29,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 03:26:28" (1/3) ... [2021-04-28 15:26:29,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e69b9dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 03:26:29, skipping insertion in model container [2021-04-28 15:26:29,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 03:26:29" (2/3) ... [2021-04-28 15:26:29,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e69b9dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 03:26:29, skipping insertion in model container [2021-04-28 15:26:29,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 03:26:29" (3/3) ... [2021-04-28 15:26:29,869 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2021-04-28 15:26:29,876 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 15:26:29,882 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 15:26:29,883 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 15:26:29,931 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,931 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,932 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,932 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,932 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,932 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,933 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,933 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,934 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,934 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,934 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,934 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,940 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,940 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,941 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,941 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,942 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,942 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,943 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,943 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,944 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,944 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,944 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,945 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,946 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,946 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,947 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,947 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,947 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,948 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,948 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,948 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,949 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,950 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,950 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,951 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,954 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,955 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,955 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,956 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,956 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,956 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,964 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,965 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,965 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,965 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,965 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 15:26:29,977 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-28 15:26:30,004 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 15:26:30,051 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 15:26:30,051 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 15:26:30,051 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 15:26:30,052 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 15:26:30,052 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 15:26:30,052 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 15:26:30,052 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 15:26:30,052 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 15:26:30,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 90 transitions, 202 flow [2021-04-28 15:26:30,156 INFO L129 PetriNetUnfolder]: 6/90 cut-off events. [2021-04-28 15:26:30,157 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 15:26:30,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 90 events. 6/90 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 113 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-04-28 15:26:30,164 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 90 transitions, 202 flow [2021-04-28 15:26:30,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 78 transitions, 168 flow [2021-04-28 15:26:30,187 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:26:30,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 78 transitions, 168 flow [2021-04-28 15:26:30,208 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 78 transitions, 168 flow [2021-04-28 15:26:30,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 78 transitions, 168 flow [2021-04-28 15:26:30,232 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2021-04-28 15:26:30,233 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 15:26:30,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 80 events. 5/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 98 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-04-28 15:26:30,237 INFO L146 LiptonReduction]: Number of co-enabled transitions 976 [2021-04-28 15:26:38,718 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 15:26:38,851 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:26:39,005 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 15:26:39,140 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:26:39,581 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:26:39,727 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-28 15:26:39,889 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:26:40,053 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-28 15:26:40,195 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 15:26:40,327 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 15:26:40,476 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 15:26:40,610 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 15:26:41,078 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 15:26:41,219 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:26:41,369 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 15:26:41,514 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:26:41,631 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 15:26:41,848 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 15:26:41,951 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 15:26:42,098 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 15:26:42,255 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:26:42,414 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-28 15:26:42,554 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:26:43,873 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:26:44,039 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:26:44,412 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:26:44,573 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:26:44,888 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2021-04-28 15:26:45,036 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:26:45,362 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2021-04-28 15:26:45,506 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-28 15:26:46,074 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:26:46,227 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:26:46,580 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:26:46,770 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:26:47,147 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:26:47,320 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:26:47,693 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:26:47,866 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:26:48,070 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-04-28 15:26:48,362 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-04-28 15:26:48,782 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2021-04-28 15:26:48,942 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 15:26:49,289 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2021-04-28 15:26:49,437 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 15:26:49,877 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2021-04-28 15:26:50,085 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-04-28 15:26:50,538 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2021-04-28 15:26:50,744 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-04-28 15:26:51,352 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2021-04-28 15:26:51,625 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-04-28 15:26:52,232 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2021-04-28 15:26:52,508 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-04-28 15:26:52,836 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2021-04-28 15:26:52,986 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 15:26:53,316 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2021-04-28 15:26:53,465 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 15:26:54,069 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2021-04-28 15:26:54,355 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-04-28 15:26:54,983 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2021-04-28 15:26:55,273 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-04-28 15:26:55,487 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-04-28 15:26:55,775 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-04-28 15:26:55,880 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 15:26:56,057 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-28 15:26:56,317 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-28 15:26:56,594 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-28 15:26:56,866 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-28 15:26:57,262 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-04-28 15:26:57,398 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 15:26:57,719 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-04-28 15:26:57,848 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 15:26:58,440 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2021-04-28 15:26:58,715 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 15:26:59,374 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2021-04-28 15:26:59,653 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 15:26:59,888 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-28 15:26:59,991 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 15:27:00,220 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-28 15:27:00,322 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 15:27:00,731 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:27:00,896 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:27:01,286 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:27:01,468 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:27:02,089 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2021-04-28 15:27:02,395 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-04-28 15:27:03,074 WARN L205 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123 [2021-04-28 15:27:03,349 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-04-28 15:27:04,022 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2021-04-28 15:27:04,304 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-04-28 15:27:04,962 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2021-04-28 15:27:05,263 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-04-28 15:27:05,579 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2021-04-28 15:27:05,715 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 15:27:06,037 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2021-04-28 15:27:06,183 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 15:27:06,596 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:27:06,788 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:27:07,186 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2021-04-28 15:27:07,368 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 15:27:07,616 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2021-04-28 15:27:07,729 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 15:27:07,987 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2021-04-28 15:27:08,102 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 15:27:08,292 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-04-28 15:27:08,569 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-04-28 15:27:09,391 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 122 [2021-04-28 15:27:09,733 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-04-28 15:27:10,391 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 122 [2021-04-28 15:27:10,719 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-04-28 15:27:11,497 WARN L205 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 135 [2021-04-28 15:27:11,871 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-04-28 15:27:12,710 WARN L205 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 139 [2021-04-28 15:27:13,139 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-04-28 15:27:13,504 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-04-28 15:27:13,821 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-04-28 15:27:14,144 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-04-28 15:27:14,478 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-04-28 15:27:15,230 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 131 [2021-04-28 15:27:15,617 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-04-28 15:27:16,360 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 134 [2021-04-28 15:27:16,734 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-04-28 15:27:17,462 WARN L205 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2021-04-28 15:27:17,818 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-04-28 15:27:18,594 WARN L205 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 132 [2021-04-28 15:27:18,990 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-04-28 15:27:19,040 INFO L158 LiptonReduction]: Checked pairs total: 8572 [2021-04-28 15:27:19,040 INFO L160 LiptonReduction]: Total number of compositions: 151 [2021-04-28 15:27:19,045 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48862 [2021-04-28 15:27:19,070 INFO L129 PetriNetUnfolder]: 2/75 cut-off events. [2021-04-28 15:27:19,070 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 15:27:19,070 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:27:19,071 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-28 15:27:19,072 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:27:19,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:27:19,078 INFO L82 PathProgramCache]: Analyzing trace with hash 388544371, now seen corresponding path program 1 times [2021-04-28 15:27:19,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:27:19,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588431765] [2021-04-28 15:27:19,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:27:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:27:19,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:19,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:27:19,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:19,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:27:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:27:19,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588431765] [2021-04-28 15:27:19,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:27:19,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 15:27:19,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78960590] [2021-04-28 15:27:19,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 15:27:19,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:27:19,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 15:27:19,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 15:27:19,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 241 [2021-04-28 15:27:19,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:27:19,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 241 [2021-04-28 15:27:19,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:27:19,501 INFO L129 PetriNetUnfolder]: 1/90 cut-off events. [2021-04-28 15:27:19,502 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 15:27:19,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 90 events. 1/90 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 480 event pairs, 0 based on Foata normal form. 4/29 useless extension candidates. Maximal degree in co-relation 53. Up to 33 conditions per place. [2021-04-28 15:27:19,504 INFO L132 encePairwiseOnDemand]: 202/241 looper letters, 4 selfloop transitions, 3 changer transitions 41/88 dead transitions. [2021-04-28 15:27:19,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 88 transitions, 258 flow [2021-04-28 15:27:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 15:27:19,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 15:27:19,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 495 transitions. [2021-04-28 15:27:19,523 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6846473029045643 [2021-04-28 15:27:19,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 495 transitions. [2021-04-28 15:27:19,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 495 transitions. [2021-04-28 15:27:19,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:27:19,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 495 transitions. [2021-04-28 15:27:19,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,547 INFO L185 Difference]: Start difference. First operand has 98 places, 96 transitions, 204 flow. Second operand 3 states and 495 transitions. [2021-04-28 15:27:19,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 88 transitions, 258 flow [2021-04-28 15:27:19,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 88 transitions, 250 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 15:27:19,554 INFO L241 Difference]: Finished difference. Result has 91 places, 47 transitions, 104 flow [2021-04-28 15:27:19,557 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=91, PETRI_TRANSITIONS=47} [2021-04-28 15:27:19,558 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -7 predicate places. [2021-04-28 15:27:19,558 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:27:19,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 47 transitions, 104 flow [2021-04-28 15:27:19,558 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 47 transitions, 104 flow [2021-04-28 15:27:19,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 47 transitions, 104 flow [2021-04-28 15:27:19,566 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-28 15:27:19,566 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 15:27:19,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 186 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2021-04-28 15:27:19,568 INFO L146 LiptonReduction]: Number of co-enabled transitions 1120 [2021-04-28 15:27:19,645 INFO L158 LiptonReduction]: Checked pairs total: 982 [2021-04-28 15:27:19,645 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:27:19,645 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-04-28 15:27:19,647 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 104 flow [2021-04-28 15:27:19,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:27:19,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:27:19,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 15:27:19,648 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:27:19,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:27:19,649 INFO L82 PathProgramCache]: Analyzing trace with hash -296652383, now seen corresponding path program 1 times [2021-04-28 15:27:19,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:27:19,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086598360] [2021-04-28 15:27:19,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:27:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:27:19,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:19,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:27:19,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:19,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:27:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:27:19,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086598360] [2021-04-28 15:27:19,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:27:19,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 15:27:19,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11978161] [2021-04-28 15:27:19,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 15:27:19,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:27:19,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 15:27:19,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 15:27:19,767 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 241 [2021-04-28 15:27:19,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:27:19,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 241 [2021-04-28 15:27:19,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:27:19,825 INFO L129 PetriNetUnfolder]: 15/149 cut-off events. [2021-04-28 15:27:19,826 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 15:27:19,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 149 events. 15/149 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 895 event pairs, 6 based on Foata normal form. 5/77 useless extension candidates. Maximal degree in co-relation 180. Up to 35 conditions per place. [2021-04-28 15:27:19,828 INFO L132 encePairwiseOnDemand]: 234/241 looper letters, 10 selfloop transitions, 6 changer transitions 1/53 dead transitions. [2021-04-28 15:27:19,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 53 transitions, 150 flow [2021-04-28 15:27:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 15:27:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 15:27:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2021-04-28 15:27:19,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.739972337482711 [2021-04-28 15:27:19,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2021-04-28 15:27:19,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2021-04-28 15:27:19,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:27:19,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2021-04-28 15:27:19,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,839 INFO L185 Difference]: Start difference. First operand has 50 places, 47 transitions, 104 flow. Second operand 3 states and 535 transitions. [2021-04-28 15:27:19,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 53 transitions, 150 flow [2021-04-28 15:27:19,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 53 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 15:27:19,842 INFO L241 Difference]: Finished difference. Result has 52 places, 51 transitions, 144 flow [2021-04-28 15:27:19,842 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=52, PETRI_TRANSITIONS=51} [2021-04-28 15:27:19,843 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -46 predicate places. [2021-04-28 15:27:19,843 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:27:19,843 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 51 transitions, 144 flow [2021-04-28 15:27:19,844 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 51 transitions, 144 flow [2021-04-28 15:27:19,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 51 transitions, 144 flow [2021-04-28 15:27:19,855 INFO L129 PetriNetUnfolder]: 3/113 cut-off events. [2021-04-28 15:27:19,855 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 15:27:19,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 113 events. 3/113 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 653 event pairs, 2 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 123. Up to 17 conditions per place. [2021-04-28 15:27:19,858 INFO L146 LiptonReduction]: Number of co-enabled transitions 1064 [2021-04-28 15:27:19,867 INFO L158 LiptonReduction]: Checked pairs total: 633 [2021-04-28 15:27:19,867 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:27:19,867 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-28 15:27:19,869 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 144 flow [2021-04-28 15:27:19,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:27:19,870 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:27:19,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 15:27:19,870 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:27:19,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:27:19,871 INFO L82 PathProgramCache]: Analyzing trace with hash 198415675, now seen corresponding path program 1 times [2021-04-28 15:27:19,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:27:19,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32077164] [2021-04-28 15:27:19,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:27:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:27:19,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:19,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:27:19,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:19,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:27:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:27:19,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32077164] [2021-04-28 15:27:19,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:27:19,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 15:27:19,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088141617] [2021-04-28 15:27:19,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 15:27:19,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:27:19,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 15:27:19,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 15:27:19,925 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 241 [2021-04-28 15:27:19,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:27:19,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 241 [2021-04-28 15:27:19,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:27:19,964 INFO L129 PetriNetUnfolder]: 3/111 cut-off events. [2021-04-28 15:27:19,964 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-04-28 15:27:19,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 111 events. 3/111 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 626 event pairs, 2 based on Foata normal form. 7/66 useless extension candidates. Maximal degree in co-relation 157. Up to 22 conditions per place. [2021-04-28 15:27:19,965 INFO L132 encePairwiseOnDemand]: 236/241 looper letters, 5 selfloop transitions, 5 changer transitions 21/51 dead transitions. [2021-04-28 15:27:19,966 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 174 flow [2021-04-28 15:27:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 15:27:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 15:27:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2021-04-28 15:27:19,969 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.73582295988935 [2021-04-28 15:27:19,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2021-04-28 15:27:19,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2021-04-28 15:27:19,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:27:19,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2021-04-28 15:27:19,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:19,975 INFO L185 Difference]: Start difference. First operand has 52 places, 51 transitions, 144 flow. Second operand 3 states and 532 transitions. [2021-04-28 15:27:19,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 174 flow [2021-04-28 15:27:19,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 15:27:19,977 INFO L241 Difference]: Finished difference. Result has 53 places, 30 transitions, 99 flow [2021-04-28 15:27:19,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2021-04-28 15:27:19,978 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -45 predicate places. [2021-04-28 15:27:19,978 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:27:19,978 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 30 transitions, 99 flow [2021-04-28 15:27:19,979 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 30 transitions, 99 flow [2021-04-28 15:27:19,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 30 transitions, 99 flow [2021-04-28 15:27:19,986 INFO L129 PetriNetUnfolder]: 1/55 cut-off events. [2021-04-28 15:27:19,986 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 15:27:19,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 55 events. 1/55 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 214 event pairs, 1 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 75. Up to 13 conditions per place. [2021-04-28 15:27:19,987 INFO L146 LiptonReduction]: Number of co-enabled transitions 274 [2021-04-28 15:27:20,490 INFO L158 LiptonReduction]: Checked pairs total: 328 [2021-04-28 15:27:20,490 INFO L160 LiptonReduction]: Total number of compositions: 7 [2021-04-28 15:27:20,490 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 512 [2021-04-28 15:27:20,492 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 99 flow [2021-04-28 15:27:20,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:20,492 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:27:20,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:27:20,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 15:27:20,493 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:27:20,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:27:20,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1860107293, now seen corresponding path program 1 times [2021-04-28 15:27:20,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:27:20,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297636214] [2021-04-28 15:27:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:27:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:27:20,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:20,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 15:27:20,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 15:27:20,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:20,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 15:27:20,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:20,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:27:20,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:20,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:27:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:27:20,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297636214] [2021-04-28 15:27:20,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:27:20,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 15:27:20,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735652173] [2021-04-28 15:27:20,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 15:27:20,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:27:20,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 15:27:20,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 15:27:20,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 248 [2021-04-28 15:27:20,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 98.33333333333333) internal successors, (590), 6 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:20,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:27:20,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 248 [2021-04-28 15:27:20,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:27:20,810 INFO L129 PetriNetUnfolder]: 30/119 cut-off events. [2021-04-28 15:27:20,811 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-04-28 15:27:20,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 119 events. 30/119 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 555 event pairs, 0 based on Foata normal form. 3/63 useless extension candidates. Maximal degree in co-relation 258. Up to 46 conditions per place. [2021-04-28 15:27:20,812 INFO L132 encePairwiseOnDemand]: 237/248 looper letters, 2 selfloop transitions, 10 changer transitions 22/42 dead transitions. [2021-04-28 15:27:20,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 191 flow [2021-04-28 15:27:20,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 15:27:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 15:27:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 618 transitions. [2021-04-28 15:27:20,816 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4153225806451613 [2021-04-28 15:27:20,816 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 618 transitions. [2021-04-28 15:27:20,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 618 transitions. [2021-04-28 15:27:20,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:27:20,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 618 transitions. [2021-04-28 15:27:20,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.0) internal successors, (618), 6 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:20,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:20,823 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:20,824 INFO L185 Difference]: Start difference. First operand has 36 places, 30 transitions, 99 flow. Second operand 6 states and 618 transitions. [2021-04-28 15:27:20,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 191 flow [2021-04-28 15:27:20,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 15:27:20,826 INFO L241 Difference]: Finished difference. Result has 39 places, 19 transitions, 85 flow [2021-04-28 15:27:20,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=85, PETRI_PLACES=39, PETRI_TRANSITIONS=19} [2021-04-28 15:27:20,827 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -59 predicate places. [2021-04-28 15:27:20,827 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:27:20,827 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 19 transitions, 85 flow [2021-04-28 15:27:20,828 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 19 transitions, 85 flow [2021-04-28 15:27:20,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 19 transitions, 85 flow [2021-04-28 15:27:20,831 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-28 15:27:20,832 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 15:27:20,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 22 events. 0/22 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 37 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-04-28 15:27:20,832 INFO L146 LiptonReduction]: Number of co-enabled transitions 56 [2021-04-28 15:27:21,063 INFO L158 LiptonReduction]: Checked pairs total: 8 [2021-04-28 15:27:21,064 INFO L160 LiptonReduction]: Total number of compositions: 4 [2021-04-28 15:27:21,064 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 237 [2021-04-28 15:27:21,065 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 85 flow [2021-04-28 15:27:21,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 98.33333333333333) internal successors, (590), 6 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:21,066 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 15:27:21,066 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 15:27:21,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 15:27:21,067 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 15:27:21,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 15:27:21,067 INFO L82 PathProgramCache]: Analyzing trace with hash -874692667, now seen corresponding path program 1 times [2021-04-28 15:27:21,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 15:27:21,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450632378] [2021-04-28 15:27:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 15:27:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 15:27:21,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:21,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:27:21,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:21,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 15:27:21,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 15:27:21,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 15:27:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 15:27:21,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450632378] [2021-04-28 15:27:21,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 15:27:21,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 15:27:21,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728811948] [2021-04-28 15:27:21,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 15:27:21,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 15:27:21,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 15:27:21,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 15:27:21,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 252 [2021-04-28 15:27:21,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:21,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 15:27:21,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 252 [2021-04-28 15:27:21,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 15:27:21,122 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-04-28 15:27:21,123 INFO L130 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2021-04-28 15:27:21,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 7 events. 0/7 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 4/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 15:27:21,123 INFO L132 encePairwiseOnDemand]: 246/252 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2021-04-28 15:27:21,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 7 transitions, 30 flow [2021-04-28 15:27:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 15:27:21,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 15:27:21,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2021-04-28 15:27:21,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6838624338624338 [2021-04-28 15:27:21,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 517 transitions. [2021-04-28 15:27:21,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 517 transitions. [2021-04-28 15:27:21,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 15:27:21,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 517 transitions. [2021-04-28 15:27:21,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 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) [2021-04-28 15:27:21,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:21,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:21,132 INFO L185 Difference]: Start difference. First operand has 31 places, 19 transitions, 85 flow. Second operand 3 states and 517 transitions. [2021-04-28 15:27:21,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 7 transitions, 30 flow [2021-04-28 15:27:21,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 22 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-04-28 15:27:21,133 INFO L241 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-04-28 15:27:21,133 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2021-04-28 15:27:21,133 INFO L343 CegarLoopForPetriNet]: 98 programPoint places, -84 predicate places. [2021-04-28 15:27:21,133 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 15:27:21,133 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2021-04-28 15:27:21,134 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 0 transitions, 0 flow [2021-04-28 15:27:21,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 15:27:21,134 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 15:27:21,134 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 15:27:21,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 15:27:21,134 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 15:27:21,135 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 15:27:21,135 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 15:27:21,135 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 15:27:21,136 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 15:27:21,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 15:27:21,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 15:27:21,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 03:27:21 BasicIcfg [2021-04-28 15:27:21,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 15:27:21,143 INFO L168 Benchmark]: Toolchain (without parser) took 52719.42 ms. Allocated memory was 316.7 MB in the beginning and 564.1 MB in the end (delta: 247.5 MB). Free memory was 290.8 MB in the beginning and 468.1 MB in the end (delta: -177.3 MB). Peak memory consumption was 72.4 MB. Max. memory is 16.0 GB. [2021-04-28 15:27:21,143 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 316.7 MB. Free memory is still 285.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 15:27:21,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.26 ms. Allocated memory is still 316.7 MB. Free memory was 287.6 MB in the beginning and 288.1 MB in the end (delta: -451.2 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. [2021-04-28 15:27:21,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.69 ms. Allocated memory is still 316.7 MB. Free memory was 288.1 MB in the beginning and 286.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 15:27:21,145 INFO L168 Benchmark]: Boogie Preprocessor took 30.00 ms. Allocated memory is still 316.7 MB. Free memory was 286.0 MB in the beginning and 284.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 15:27:21,145 INFO L168 Benchmark]: RCFGBuilder took 639.93 ms. Allocated memory is still 316.7 MB. Free memory was 284.9 MB in the beginning and 259.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-28 15:27:21,146 INFO L168 Benchmark]: TraceAbstraction took 51281.05 ms. Allocated memory was 316.7 MB in the beginning and 564.1 MB in the end (delta: 247.5 MB). Free memory was 258.7 MB in the beginning and 468.1 MB in the end (delta: -209.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.0 GB. [2021-04-28 15:27:21,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 316.7 MB. Free memory is still 285.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 666.26 ms. Allocated memory is still 316.7 MB. Free memory was 287.6 MB in the beginning and 288.1 MB in the end (delta: -451.2 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.69 ms. Allocated memory is still 316.7 MB. Free memory was 288.1 MB in the beginning and 286.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.00 ms. Allocated memory is still 316.7 MB. Free memory was 286.0 MB in the beginning and 284.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 639.93 ms. Allocated memory is still 316.7 MB. Free memory was 284.9 MB in the beginning and 259.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 51281.05 ms. Allocated memory was 316.7 MB in the beginning and 564.1 MB in the end (delta: 247.5 MB). Free memory was 258.7 MB in the beginning and 468.1 MB in the end (delta: -209.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48832.9ms, 79 PlacesBefore, 98 PlacesAfterwards, 78 TransitionsBefore, 96 TransitionsAfterwards, 976 CoEnabledTransitionPairs, 8 FixpointIterations, 114 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 151 TotalNumberOfCompositions, 8572 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2816, positive: 2530, positive conditional: 2530, positive unconditional: 0, negative: 286, negative conditional: 286, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 914, positive: 880, positive conditional: 0, positive unconditional: 880, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 914, positive: 880, positive conditional: 0, positive unconditional: 880, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 914, positive: 814, positive conditional: 0, positive unconditional: 814, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 100, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 367, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 172, negative conditional: 0, negative unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2816, positive: 1650, positive conditional: 1650, positive unconditional: 0, negative: 252, negative conditional: 252, negative unconditional: 0, unknown: 914, unknown conditional: 914, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 864, Positive conditional cache size: 864, Positive unconditional cache size: 0, Negative cache size: 34, Negative conditional cache size: 34, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.5ms, 91 PlacesBefore, 50 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 982 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 219, positive: 179, positive conditional: 179, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 23, positive conditional: 6, positive unconditional: 17, negative: 7, negative conditional: 5, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, positive: 23, positive conditional: 6, positive unconditional: 17, negative: 7, negative conditional: 5, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 7, negative conditional: 5, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 36, negative conditional: 20, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 219, positive: 156, positive conditional: 156, positive unconditional: 0, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 928, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 41, Negative conditional cache size: 41, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.5ms, 52 PlacesBefore, 52 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1064 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 633 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 133, positive: 106, positive conditional: 106, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 133, positive: 98, positive conditional: 98, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 936, Positive cache size: 895, Positive conditional cache size: 895, Positive unconditional cache size: 0, Negative cache size: 41, Negative conditional cache size: 41, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 511.3ms, 53 PlacesBefore, 36 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 158, positive: 138, positive conditional: 138, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 35, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 35, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 158, positive: 104, positive conditional: 104, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 35, unknown conditional: 35, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 971, Positive cache size: 929, Positive conditional cache size: 929, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 236.2ms, 39 PlacesBefore, 31 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 973, Positive cache size: 931, Positive conditional cache size: 931, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0ms, 14 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 973, Positive cache size: 931, Positive conditional cache size: 931, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - PositiveResult [Line: 702]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 710]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 51093.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 575.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 49001.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55 SDtfs, 37 SDslu, 2 SDs, 0 SdLazy, 83 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 199.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 78.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.0ms SsaConstructionTime, 107.5ms SatisfiabilityAnalysisTime, 319.3ms InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...