/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 04:47:19,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 04:47:19,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 04:47:19,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 04:47:19,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 04:47:19,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 04:47:19,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 04:47:19,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 04:47:19,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 04:47:19,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 04:47:19,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 04:47:19,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 04:47:19,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 04:47:19,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 04:47:19,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 04:47:19,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 04:47:19,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 04:47:19,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 04:47:19,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 04:47:19,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 04:47:19,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 04:47:19,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 04:47:19,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 04:47:19,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 04:47:19,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 04:47:19,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 04:47:19,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 04:47:19,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 04:47:19,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 04:47:19,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 04:47:19,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 04:47:19,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 04:47:19,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 04:47:19,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 04:47:19,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 04:47:19,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 04:47:19,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 04:47:19,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 04:47:19,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 04:47:19,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 04:47:19,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 04:47:19,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-06-11 04:47:20,007 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 04:47:20,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 04:47:20,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 04:47:20,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 04:47:20,010 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 04:47:20,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 04:47:20,011 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 04:47:20,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 04:47:20,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 04:47:20,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 04:47:20,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 04:47:20,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 04:47:20,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 04:47:20,012 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 04:47:20,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 04:47:20,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 04:47:20,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 04:47:20,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 04:47:20,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 04:47:20,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 04:47:20,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 04:47:20,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 04:47:20,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 04:47:20,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 04:47:20,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 04:47:20,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 04:47:20,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 04:47:20,014 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 04:47:20,014 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 04:47:20,014 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 04:47:20,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 04:47:20,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 04:47:20,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 04:47:20,346 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 04:47:20,347 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 04:47:20,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2021-06-11 04:47:20,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d05d578bf/fc1d70de9d9a491b90445178ff1de778/FLAG85b93d2ca [2021-06-11 04:47:20,877 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 04:47:20,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2021-06-11 04:47:20,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d05d578bf/fc1d70de9d9a491b90445178ff1de778/FLAG85b93d2ca [2021-06-11 04:47:21,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d05d578bf/fc1d70de9d9a491b90445178ff1de778 [2021-06-11 04:47:21,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 04:47:21,376 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 04:47:21,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 04:47:21,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 04:47:21,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 04:47:21,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b96af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21, skipping insertion in model container [2021-06-11 04:47:21,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 04:47:21,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 04:47:21,708 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/stateful01-2.i[30826,30839] [2021-06-11 04:47:21,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 04:47:21,718 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 04:47:21,765 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/stateful01-2.i[30826,30839] [2021-06-11 04:47:21,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 04:47:21,831 INFO L208 MainTranslator]: Completed translation [2021-06-11 04:47:21,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21 WrapperNode [2021-06-11 04:47:21,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 04:47:21,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 04:47:21,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 04:47:21,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 04:47:21,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 04:47:21,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 04:47:21,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 04:47:21,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 04:47:21,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... [2021-06-11 04:47:21,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 04:47:21,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 04:47:21,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 04:47:21,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 04:47:21,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 04:47:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-11 04:47:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-11 04:47:21,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-11 04:47:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-11 04:47:21,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-11 04:47:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 04:47:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-11 04:47:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 04:47:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 04:47:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 04:47:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 04:47:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 04:47:21,961 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 04:47:22,351 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 04:47:22,351 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-11 04:47:22,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:47:22 BoogieIcfgContainer [2021-06-11 04:47:22,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 04:47:22,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 04:47:22,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 04:47:22,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 04:47:22,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:47:21" (1/3) ... [2021-06-11 04:47:22,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80223f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:47:22, skipping insertion in model container [2021-06-11 04:47:22,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:47:21" (2/3) ... [2021-06-11 04:47:22,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80223f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:47:22, skipping insertion in model container [2021-06-11 04:47:22,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:47:22" (3/3) ... [2021-06-11 04:47:22,359 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2021-06-11 04:47:22,363 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 04:47:22,367 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 04:47:22,368 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 04:47:22,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,392 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,392 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,392 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,392 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,393 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,393 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,393 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,395 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,395 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,395 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,395 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,395 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,395 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,396 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,396 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,396 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,396 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,396 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,397 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,397 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,397 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,397 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,398 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,398 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,398 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,399 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,401 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,401 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,401 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,401 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,404 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,404 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,409 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,409 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,410 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 04:47:22,416 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-11 04:47:22,432 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 04:47:22,450 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 04:47:22,450 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 04:47:22,451 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 04:47:22,451 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 04:47:22,451 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 04:47:22,451 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 04:47:22,451 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 04:47:22,451 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 04:47:22,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 188 flow [2021-06-11 04:47:22,497 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-06-11 04:47:22,497 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 04:47:22,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 83 events. 2/83 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2021-06-11 04:47:22,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 83 transitions, 188 flow [2021-06-11 04:47:22,503 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 71 transitions, 160 flow [2021-06-11 04:47:22,505 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:47:22,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 71 transitions, 160 flow [2021-06-11 04:47:22,518 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 71 transitions, 160 flow [2021-06-11 04:47:22,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 71 transitions, 160 flow [2021-06-11 04:47:22,538 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-06-11 04:47:22,539 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 04:47:22,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 73 events. 1/73 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 19. Up to 3 conditions per place. [2021-06-11 04:47:22,541 INFO L151 LiptonReduction]: Number of co-enabled transitions 680 [2021-06-11 04:47:22,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:22,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:22,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:22,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:22,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:22,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:47:22,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:47:22,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:22,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:22,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:22,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:22,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:22,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:22,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:22,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:22,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:22,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:23,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:23,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:47:23,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:47:23,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:23,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:23,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:23,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:23,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:47:23,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 04:47:23,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 04:47:23,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:23,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:23,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:23,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:24,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 04:47:24,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 04:47:24,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:24,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:47:24,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:47:24,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:47:24,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 04:47:24,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 04:47:24,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:47:24,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:24,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:47:24,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:47:24,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:47:24,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 04:47:24,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 04:47:24,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:24,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:24,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 04:47:24,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-11 04:47:24,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:25,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:25,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:25,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:25,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:25,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 04:47:25,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 04:47:25,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:25,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:25,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:25,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:25,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 04:47:25,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 04:47:25,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:25,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:25,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 04:47:25,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 04:47:25,167 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 04:47:25,367 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 04:47:25,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:25,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:25,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:25,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 04:47:25,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 04:47:25,806 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2021-06-11 04:47:25,974 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-06-11 04:47:26,346 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2021-06-11 04:47:26,522 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-06-11 04:47:26,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:26,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:26,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:26,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:26,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 04:47:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 04:47:26,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:26,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:26,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:26,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:26,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 04:47:26,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 04:47:26,553 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:26,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:26,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:26,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:26,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-06-11 04:47:26,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-11 04:47:26,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 04:47:26,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:26,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-06-11 04:47:26,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-06-11 04:47:26,778 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-06-11 04:47:27,000 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-06-11 04:47:27,213 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-06-11 04:47:27,446 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-06-11 04:47:27,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:27,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:27,460 INFO L163 LiptonReduction]: Checked pairs total: 2299 [2021-06-11 04:47:27,460 INFO L165 LiptonReduction]: Total number of compositions: 46 [2021-06-11 04:47:27,462 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4959 [2021-06-11 04:47:27,472 INFO L129 PetriNetUnfolder]: 1/27 cut-off events. [2021-06-11 04:47:27,472 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-11 04:47:27,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:47:27,473 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:47:27,473 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:47:27,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:47:27,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1706280515, now seen corresponding path program 1 times [2021-06-11 04:47:27,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:47:27,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060285253] [2021-06-11 04:47:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:47:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:47:27,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:27,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:27,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:27,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 04:47:27,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:27,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-06-11 04:47:27,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:27,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 04:47:27,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:27,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:47:27,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060285253] [2021-06-11 04:47:27,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:47:27,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 04:47:27,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404056750] [2021-06-11 04:47:27,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 04:47:27,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:47:27,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 04:47:27,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-11 04:47:27,767 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 129 [2021-06-11 04:47:27,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 27 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:27,771 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:47:27,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 129 [2021-06-11 04:47:27,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:47:27,825 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-06-11 04:47:27,825 INFO L130 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2021-06-11 04:47:27,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 27 events. 0/27 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-06-11 04:47:27,827 INFO L132 encePairwiseOnDemand]: 124/129 looper letters, 4 selfloop transitions, 4 changer transitions 3/26 dead transitions. [2021-06-11 04:47:27,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 83 flow [2021-06-11 04:47:27,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 04:47:27,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 04:47:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 374 transitions. [2021-06-11 04:47:27,844 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.57984496124031 [2021-06-11 04:47:27,844 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 374 transitions. [2021-06-11 04:47:27,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 374 transitions. [2021-06-11 04:47:27,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:47:27,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 374 transitions. [2021-06-11 04:47:27,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:27,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:27,861 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:27,862 INFO L185 Difference]: Start difference. First operand has 32 places, 27 transitions, 72 flow. Second operand 5 states and 374 transitions. [2021-06-11 04:47:27,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 26 transitions, 83 flow [2021-06-11 04:47:27,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 73 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 04:47:27,866 INFO L241 Difference]: Finished difference. Result has 32 places, 23 transitions, 58 flow [2021-06-11 04:47:27,868 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2021-06-11 04:47:27,868 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-06-11 04:47:27,868 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:47:27,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 23 transitions, 58 flow [2021-06-11 04:47:27,869 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 23 transitions, 58 flow [2021-06-11 04:47:27,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 23 transitions, 58 flow [2021-06-11 04:47:27,877 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-06-11 04:47:27,877 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 04:47:27,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 23 events. 0/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-11 04:47:27,877 INFO L151 LiptonReduction]: Number of co-enabled transitions 180 [2021-06-11 04:47:27,879 INFO L163 LiptonReduction]: Checked pairs total: 236 [2021-06-11 04:47:27,879 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:47:27,879 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 04:47:27,880 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 58 flow [2021-06-11 04:47:27,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:27,880 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:47:27,880 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:47:27,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 04:47:27,881 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:47:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:47:27,882 INFO L82 PathProgramCache]: Analyzing trace with hash 394812083, now seen corresponding path program 1 times [2021-06-11 04:47:27,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:47:27,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528742893] [2021-06-11 04:47:27,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:47:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:47:27,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:27,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,030 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:47:28,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:47:28,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528742893] [2021-06-11 04:47:28,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:47:28,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 04:47:28,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260583305] [2021-06-11 04:47:28,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 04:47:28,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:47:28,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 04:47:28,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-11 04:47:28,058 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 129 [2021-06-11 04:47:28,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 58 flow. Second operand has 6 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:47:28,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 129 [2021-06-11 04:47:28,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:47:28,113 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-06-11 04:47:28,113 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 04:47:28,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 53 events. 0/53 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 156 event pairs, 0 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-06-11 04:47:28,114 INFO L132 encePairwiseOnDemand]: 124/129 looper letters, 5 selfloop transitions, 5 changer transitions 2/29 dead transitions. [2021-06-11 04:47:28,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 96 flow [2021-06-11 04:47:28,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 04:47:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 04:47:28,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 748 transitions. [2021-06-11 04:47:28,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8283499446290143 [2021-06-11 04:47:28,118 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 748 transitions. [2021-06-11 04:47:28,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 748 transitions. [2021-06-11 04:47:28,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:47:28,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 748 transitions. [2021-06-11 04:47:28,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,124 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,124 INFO L185 Difference]: Start difference. First operand has 30 places, 23 transitions, 58 flow. Second operand 7 states and 748 transitions. [2021-06-11 04:47:28,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 96 flow [2021-06-11 04:47:28,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 86 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 04:47:28,126 INFO L241 Difference]: Finished difference. Result has 36 places, 26 transitions, 81 flow [2021-06-11 04:47:28,127 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=81, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2021-06-11 04:47:28,127 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2021-06-11 04:47:28,128 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:47:28,128 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 26 transitions, 81 flow [2021-06-11 04:47:28,130 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 26 transitions, 81 flow [2021-06-11 04:47:28,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 26 transitions, 81 flow [2021-06-11 04:47:28,137 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-06-11 04:47:28,138 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-11 04:47:28,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 39 events. 0/39 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-06-11 04:47:28,139 INFO L151 LiptonReduction]: Number of co-enabled transitions 136 [2021-06-11 04:47:28,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:28,223 INFO L163 LiptonReduction]: Checked pairs total: 266 [2021-06-11 04:47:28,223 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-11 04:47:28,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-06-11 04:47:28,224 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 79 flow [2021-06-11 04:47:28,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,224 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:47:28,224 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:47:28,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 04:47:28,225 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:47:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:47:28,225 INFO L82 PathProgramCache]: Analyzing trace with hash -997415501, now seen corresponding path program 2 times [2021-06-11 04:47:28,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:47:28,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841577096] [2021-06-11 04:47:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:47:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:47:28,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:28,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:47:28,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841577096] [2021-06-11 04:47:28,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:47:28,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 04:47:28,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178143324] [2021-06-11 04:47:28,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 04:47:28,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:47:28,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 04:47:28,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 04:47:28,268 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 131 [2021-06-11 04:47:28,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:47:28,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 131 [2021-06-11 04:47:28,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:47:28,292 INFO L129 PetriNetUnfolder]: 2/40 cut-off events. [2021-06-11 04:47:28,292 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2021-06-11 04:47:28,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 40 events. 2/40 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 2 based on Foata normal form. 8/48 useless extension candidates. Maximal degree in co-relation 70. Up to 10 conditions per place. [2021-06-11 04:47:28,293 INFO L132 encePairwiseOnDemand]: 122/131 looper letters, 1 selfloop transitions, 8 changer transitions 1/23 dead transitions. [2021-06-11 04:47:28,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 86 flow [2021-06-11 04:47:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 04:47:28,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 04:47:28,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2021-06-11 04:47:28,294 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7302798982188295 [2021-06-11 04:47:28,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2021-06-11 04:47:28,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2021-06-11 04:47:28,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:47:28,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2021-06-11 04:47:28,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,297 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 79 flow. Second operand 3 states and 287 transitions. [2021-06-11 04:47:28,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 86 flow [2021-06-11 04:47:28,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 80 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-06-11 04:47:28,298 INFO L241 Difference]: Finished difference. Result has 31 places, 22 transitions, 72 flow [2021-06-11 04:47:28,298 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2021-06-11 04:47:28,299 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2021-06-11 04:47:28,299 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:47:28,299 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 22 transitions, 72 flow [2021-06-11 04:47:28,299 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 22 transitions, 72 flow [2021-06-11 04:47:28,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 22 transitions, 72 flow [2021-06-11 04:47:28,303 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2021-06-11 04:47:28,303 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-11 04:47:28,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 37 events. 2/37 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 2 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 50. Up to 9 conditions per place. [2021-06-11 04:47:28,304 INFO L151 LiptonReduction]: Number of co-enabled transitions 42 [2021-06-11 04:47:28,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:28,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:28,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 04:47:28,381 INFO L163 LiptonReduction]: Checked pairs total: 5 [2021-06-11 04:47:28,382 INFO L165 LiptonReduction]: Total number of compositions: 3 [2021-06-11 04:47:28,382 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 83 [2021-06-11 04:47:28,382 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 66 flow [2021-06-11 04:47:28,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,383 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 04:47:28,383 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 04:47:28,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 04:47:28,383 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 04:47:28,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 04:47:28,384 INFO L82 PathProgramCache]: Analyzing trace with hash -963629338, now seen corresponding path program 1 times [2021-06-11 04:47:28,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 04:47:28,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179499906] [2021-06-11 04:47:28,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 04:47:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 04:47:28,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 04:47:28,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,433 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-06-11 04:47:28,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 04:47:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 04:47:28,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179499906] [2021-06-11 04:47:28,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 04:47:28,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 04:47:28,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216460512] [2021-06-11 04:47:28,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 04:47:28,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 04:47:28,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 04:47:28,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-11 04:47:28,443 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 134 [2021-06-11 04:47:28,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 66 flow. Second operand has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 04:47:28,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 134 [2021-06-11 04:47:28,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 04:47:28,474 INFO L129 PetriNetUnfolder]: 2/31 cut-off events. [2021-06-11 04:47:28,475 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-11 04:47:28,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 31 events. 2/31 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 2 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 48. Up to 9 conditions per place. [2021-06-11 04:47:28,475 INFO L132 encePairwiseOnDemand]: 129/134 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-06-11 04:47:28,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 18 transitions, 74 flow [2021-06-11 04:47:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 04:47:28,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 04:47:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2021-06-11 04:47:28,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8134328358208955 [2021-06-11 04:47:28,477 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 654 transitions. [2021-06-11 04:47:28,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 654 transitions. [2021-06-11 04:47:28,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 04:47:28,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 654 transitions. [2021-06-11 04:47:28,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,482 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,482 INFO L185 Difference]: Start difference. First operand has 27 places, 19 transitions, 66 flow. Second operand 6 states and 654 transitions. [2021-06-11 04:47:28,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 18 transitions, 74 flow [2021-06-11 04:47:28,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 62 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-11 04:47:28,483 INFO L241 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2021-06-11 04:47:28,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2021-06-11 04:47:28,483 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -4 predicate places. [2021-06-11 04:47:28,483 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 04:47:28,484 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 0 transitions, 0 flow [2021-06-11 04:47:28,484 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 0 transitions, 0 flow [2021-06-11 04:47:28,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 04:47:28,484 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 04:47:28,484 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 04:47:28,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 04:47:28,484 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 04:47:28,485 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 04:47:28,485 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 04:47:28,485 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-06-11 04:47:28,485 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 04:47:28,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 04:47:28,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 04:47:28,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:47:28 BasicIcfg [2021-06-11 04:47:28,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 04:47:28,490 INFO L168 Benchmark]: Toolchain (without parser) took 7114.18 ms. Allocated memory was 356.5 MB in the beginning and 429.9 MB in the end (delta: 73.4 MB). Free memory was 319.4 MB in the beginning and 323.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 69.8 MB. Max. memory is 16.0 GB. [2021-06-11 04:47:28,490 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 356.5 MB. Free memory is still 337.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 04:47:28,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.21 ms. Allocated memory is still 356.5 MB. Free memory was 319.1 MB in the beginning and 321.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-11 04:47:28,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.46 ms. Allocated memory is still 356.5 MB. Free memory was 321.0 MB in the beginning and 319.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 04:47:28,491 INFO L168 Benchmark]: Boogie Preprocessor took 18.64 ms. Allocated memory is still 356.5 MB. Free memory was 319.0 MB in the beginning and 317.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 04:47:28,491 INFO L168 Benchmark]: RCFGBuilder took 446.70 ms. Allocated memory is still 356.5 MB. Free memory was 317.9 MB in the beginning and 292.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 04:47:28,492 INFO L168 Benchmark]: TraceAbstraction took 6135.79 ms. Allocated memory was 356.5 MB in the beginning and 429.9 MB in the end (delta: 73.4 MB). Free memory was 292.8 MB in the beginning and 323.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.0 GB. [2021-06-11 04:47:28,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 356.5 MB. Free memory is still 337.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 454.21 ms. Allocated memory is still 356.5 MB. Free memory was 319.1 MB in the beginning and 321.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.46 ms. Allocated memory is still 356.5 MB. Free memory was 321.0 MB in the beginning and 319.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.64 ms. Allocated memory is still 356.5 MB. Free memory was 319.0 MB in the beginning and 317.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 446.70 ms. Allocated memory is still 356.5 MB. Free memory was 317.9 MB in the beginning and 292.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6135.79 ms. Allocated memory was 356.5 MB in the beginning and 429.9 MB in the end (delta: 73.4 MB). Free memory was 292.8 MB in the beginning and 323.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4941.9ms, 76 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 27 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 7 FixpointIterations, 31 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 2299 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1138, positive: 981, positive conditional: 0, positive unconditional: 981, negative: 157, negative conditional: 0, negative unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 442, positive: 409, positive conditional: 0, positive unconditional: 409, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 442, positive: 409, positive conditional: 0, positive unconditional: 409, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 442, positive: 396, positive conditional: 0, positive unconditional: 396, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 153, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 116, negative conditional: 0, negative unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1138, positive: 572, positive conditional: 0, positive unconditional: 572, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 442, unknown conditional: 0, unknown unconditional: 442] , Statistics on independence cache: Total cache size (in pairs): 628, Positive cache size: 595, Positive conditional cache size: 0, Positive unconditional cache size: 595, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.9ms, 32 PlacesBefore, 30 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 236 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 100, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ 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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ 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] , 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: 100, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 599, Positive conditional cache size: 0, Positive unconditional cache size: 599, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 92.6ms, 36 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 266 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 126, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ 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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 126, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 635, Positive conditional cache size: 0, Positive unconditional cache size: 635, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 82.4ms, 31 PlacesBefore, 27 PlacesAfterwards, 22 TransitionsBefore, 19 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 735, Positive cache size: 702, Positive conditional cache size: 0, Positive unconditional cache size: 702, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 28 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): 735, Positive cache size: 702, Positive conditional cache size: 0, Positive unconditional cache size: 702, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - PositiveResult [Line: 727]: 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, 81 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 6040.0ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 252.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5015.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13 SDtfs, 14 SDslu, 8 SDs, 0 SdLazy, 65 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 113.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=2, InterpolantAutomatonStates: 21, 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: 16.7ms SsaConstructionTime, 112.3ms SatisfiabilityAnalysisTime, 308.4ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...