/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/forkFork.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 07:37:01,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 07:37:01,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 07:37:01,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 07:37:01,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 07:37:01,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 07:37:01,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 07:37:01,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 07:37:01,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 07:37:01,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 07:37:01,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 07:37:01,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 07:37:01,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 07:37:01,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 07:37:01,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 07:37:01,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 07:37:01,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 07:37:01,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 07:37:01,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 07:37:01,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 07:37:01,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 07:37:01,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 07:37:01,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 07:37:01,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 07:37:01,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 07:37:01,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 07:37:01,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 07:37:01,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 07:37:01,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 07:37:01,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 07:37:01,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 07:37:01,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 07:37:01,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 07:37:01,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 07:37:01,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 07:37:01,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 07:37:01,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 07:37:01,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 07:37:01,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 07:37:01,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 07:37:01,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 07:37:01,984 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-RepeatedVariableLbe.epf [2021-03-25 07:37:02,016 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 07:37:02,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 07:37:02,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 07:37:02,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 07:37:02,017 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 07:37:02,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 07:37:02,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 07:37:02,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 07:37:02,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 07:37:02,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 07:37:02,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 07:37:02,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 07:37:02,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 07:37:02,019 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 07:37:02,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 07:37:02,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 07:37:02,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 07:37:02,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 07:37:02,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 07:37:02,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 07:37:02,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 07:37:02,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:37:02,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 07:37:02,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 07:37:02,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 07:37:02,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 07:37:02,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 07:37:02,021 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 07:37:02,021 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 07:37:02,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 07:37:02,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 07:37:02,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 07:37:02,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 07:37:02,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 07:37:02,355 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 07:37:02,355 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 07:37:02,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkFork.c [2021-03-25 07:37:02,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/790866583/88b5cf074f854976842f79c95bf44932/FLAGa15666e51 [2021-03-25 07:37:02,907 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 07:37:02,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkFork.c [2021-03-25 07:37:02,908 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 07:37:02,908 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 07:37:02,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/790866583/88b5cf074f854976842f79c95bf44932/FLAGa15666e51 [2021-03-25 07:37:03,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/790866583/88b5cf074f854976842f79c95bf44932 [2021-03-25 07:37:03,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 07:37:03,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 07:37:03,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 07:37:03,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 07:37:03,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 07:37:03,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b922c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03, skipping insertion in model container [2021-03-25 07:37:03,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 07:37:03,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 07:37:03,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 07:37:03,636 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 07:37:03,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 07:37:03,666 INFO L208 MainTranslator]: Completed translation [2021-03-25 07:37:03,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03 WrapperNode [2021-03-25 07:37:03,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 07:37:03,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 07:37:03,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 07:37:03,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 07:37:03,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 07:37:03,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 07:37:03,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 07:37:03,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 07:37:03,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... [2021-03-25 07:37:03,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 07:37:03,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 07:37:03,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 07:37:03,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 07:37:03,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:37:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-03-25 07:37:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 07:37:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2021-03-25 07:37:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2021-03-25 07:37:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-25 07:37:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-25 07:37:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 07:37:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 07:37:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 07:37:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 07:37:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-25 07:37:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 07:37:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 07:37:03,803 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 07:37:04,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 07:37:04,078 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 07:37:04,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:37:04 BoogieIcfgContainer [2021-03-25 07:37:04,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 07:37:04,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 07:37:04,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 07:37:04,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 07:37:04,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 07:37:03" (1/3) ... [2021-03-25 07:37:04,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3300d093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:37:04, skipping insertion in model container [2021-03-25 07:37:04,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 07:37:03" (2/3) ... [2021-03-25 07:37:04,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3300d093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:37:04, skipping insertion in model container [2021-03-25 07:37:04,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:37:04" (3/3) ... [2021-03-25 07:37:04,086 INFO L111 eAbstractionObserver]: Analyzing ICFG forkFork.c [2021-03-25 07:37:04,107 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 07:37:04,111 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 07:37:04,111 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 07:37:04,169 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,169 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,169 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,169 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,170 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,170 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#in~b.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,170 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,170 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,170 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,170 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,170 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,171 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,171 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,171 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,171 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,171 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,171 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,172 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,172 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,172 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,172 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,172 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,172 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,173 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,173 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,173 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,173 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,173 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,173 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,174 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,174 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,174 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,175 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,175 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,175 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,175 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,175 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,175 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,176 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,176 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,176 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,176 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,176 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,177 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,177 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,177 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,177 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,177 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,178 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,178 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,178 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,178 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,178 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,178 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,179 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,179 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,179 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,179 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,180 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,180 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#in~a.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,180 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,180 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,180 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,180 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,181 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,181 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,181 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,182 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,182 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,182 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,182 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,182 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,182 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,182 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,183 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,183 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,183 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,183 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,184 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,184 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,184 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,184 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,185 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,185 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,185 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,185 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,186 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,187 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,188 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,188 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,188 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,188 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,188 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,189 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,190 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,191 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,192 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,192 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,192 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,192 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,192 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,192 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,192 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,193 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,194 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,196 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,197 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,197 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,197 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,197 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,197 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,197 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,197 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,198 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,217 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,218 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,218 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,218 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,218 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,218 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,219 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~a.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,219 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_~param~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,219 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,219 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#ret~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,219 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,219 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,219 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_~#second_thread~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,219 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,220 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~mem5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,220 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,222 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,222 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,223 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,223 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,223 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,223 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~c~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,223 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,223 WARN L313 ript$VariableManager]: TermVariabe barThread1of1ForFork0_~b.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,224 WARN L313 ript$VariableManager]: TermVariabe |barThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:37:04,242 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-25 07:37:04,258 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 07:37:04,276 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 07:37:04,276 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 07:37:04,276 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 07:37:04,277 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 07:37:04,277 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 07:37:04,277 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 07:37:04,277 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 07:37:04,277 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 07:37:04,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 194 flow [2021-03-25 07:37:04,362 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2021-03-25 07:37:04,362 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 07:37:04,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 89 events. 2/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 64. Up to 5 conditions per place. [2021-03-25 07:37:04,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 83 transitions, 194 flow [2021-03-25 07:37:04,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 59 transitions, 139 flow [2021-03-25 07:37:04,371 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:04,379 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 59 transitions, 139 flow [2021-03-25 07:37:04,383 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 59 transitions, 139 flow [2021-03-25 07:37:04,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 59 transitions, 139 flow [2021-03-25 07:37:04,410 INFO L129 PetriNetUnfolder]: 2/69 cut-off events. [2021-03-25 07:37:04,411 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 07:37:04,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 69 events. 2/69 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 35 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 54. Up to 5 conditions per place. [2021-03-25 07:37:04,414 INFO L142 LiptonReduction]: Number of co-enabled transitions 294 [2021-03-25 07:37:05,549 INFO L154 LiptonReduction]: Checked pairs total: 338 [2021-03-25 07:37:05,550 INFO L156 LiptonReduction]: Total number of compositions: 34 [2021-03-25 07:37:05,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1182 [2021-03-25 07:37:05,562 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-25 07:37:05,563 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:37:05,563 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:05,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:05,565 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:05,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:05,571 INFO L82 PathProgramCache]: Analyzing trace with hash 882950189, now seen corresponding path program 1 times [2021-03-25 07:37:05,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:05,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236205173] [2021-03-25 07:37:05,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:05,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:05,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:37:05,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:05,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:37:05,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:05,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:37:05,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:05,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 07:37:05,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:05,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:37:05,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:05,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:37:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:05,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236205173] [2021-03-25 07:37:05,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:05,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 07:37:05,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607842098] [2021-03-25 07:37:05,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 07:37:05,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:05,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 07:37:05,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-25 07:37:05,849 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 120 [2021-03-25 07:37:05,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 75 flow. Second operand has 7 states, 7 states have (on average 64.28571428571429) internal successors, (450), 7 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:05,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:05,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 120 [2021-03-25 07:37:05,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:05,985 INFO L129 PetriNetUnfolder]: 37/103 cut-off events. [2021-03-25 07:37:05,985 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 07:37:05,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 103 events. 37/103 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 221 event pairs, 3 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 184. Up to 39 conditions per place. [2021-03-25 07:37:05,987 INFO L132 encePairwiseOnDemand]: 113/120 looper letters, 21 selfloop transitions, 6 changer transitions 0/35 dead transitions. [2021-03-25 07:37:05,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 145 flow [2021-03-25 07:37:05,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 07:37:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 07:37:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 469 transitions. [2021-03-25 07:37:06,000 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5583333333333333 [2021-03-25 07:37:06,001 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 469 transitions. [2021-03-25 07:37:06,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 469 transitions. [2021-03-25 07:37:06,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:06,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 469 transitions. [2021-03-25 07:37:06,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,014 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,015 INFO L185 Difference]: Start difference. First operand has 31 places, 27 transitions, 75 flow. Second operand 7 states and 469 transitions. [2021-03-25 07:37:06,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 145 flow [2021-03-25 07:37:06,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 131 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 07:37:06,019 INFO L241 Difference]: Finished difference. Result has 32 places, 26 transitions, 71 flow [2021-03-25 07:37:06,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=71, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2021-03-25 07:37:06,021 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-03-25 07:37:06,021 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:06,021 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 26 transitions, 71 flow [2021-03-25 07:37:06,022 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 26 transitions, 71 flow [2021-03-25 07:37:06,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 26 transitions, 71 flow [2021-03-25 07:37:06,026 INFO L129 PetriNetUnfolder]: 2/30 cut-off events. [2021-03-25 07:37:06,026 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:37:06,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 30 events. 2/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 20. Up to 3 conditions per place. [2021-03-25 07:37:06,027 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-25 07:37:06,570 INFO L154 LiptonReduction]: Checked pairs total: 134 [2021-03-25 07:37:06,571 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 07:37:06,571 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 550 [2021-03-25 07:37:06,572 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 57 flow [2021-03-25 07:37:06,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 64.28571428571429) internal successors, (450), 7 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,572 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:06,572 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:06,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 07:37:06,572 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:06,573 INFO L82 PathProgramCache]: Analyzing trace with hash 784039269, now seen corresponding path program 1 times [2021-03-25 07:37:06,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:06,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851491632] [2021-03-25 07:37:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:06,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:37:06,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:37:06,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 07:37:06,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 07:37:06,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:37:06,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:06,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851491632] [2021-03-25 07:37:06,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:06,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 07:37:06,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142060314] [2021-03-25 07:37:06,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 07:37:06,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:06,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 07:37:06,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 07:37:06,631 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 127 [2021-03-25 07:37:06,632 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:06,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 127 [2021-03-25 07:37:06,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:06,704 INFO L129 PetriNetUnfolder]: 17/57 cut-off events. [2021-03-25 07:37:06,704 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-25 07:37:06,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 57 events. 17/57 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 123 event pairs, 11 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 28. Up to 36 conditions per place. [2021-03-25 07:37:06,705 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 17 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2021-03-25 07:37:06,706 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 29 transitions, 133 flow [2021-03-25 07:37:06,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 07:37:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 07:37:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2021-03-25 07:37:06,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6548556430446194 [2021-03-25 07:37:06,710 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2021-03-25 07:37:06,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2021-03-25 07:37:06,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:06,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2021-03-25 07:37:06,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,714 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,714 INFO L185 Difference]: Start difference. First operand has 25 places, 19 transitions, 57 flow. Second operand 6 states and 499 transitions. [2021-03-25 07:37:06,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 29 transitions, 133 flow [2021-03-25 07:37:06,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 29 transitions, 115 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-25 07:37:06,716 INFO L241 Difference]: Finished difference. Result has 27 places, 23 transitions, 83 flow [2021-03-25 07:37:06,716 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=83, PETRI_PLACES=27, PETRI_TRANSITIONS=23} [2021-03-25 07:37:06,717 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2021-03-25 07:37:06,717 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:06,717 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 23 transitions, 83 flow [2021-03-25 07:37:06,717 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 23 transitions, 83 flow [2021-03-25 07:37:06,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 83 flow [2021-03-25 07:37:06,728 INFO L129 PetriNetUnfolder]: 4/32 cut-off events. [2021-03-25 07:37:06,728 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 07:37:06,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 32 events. 4/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 28. Up to 6 conditions per place. [2021-03-25 07:37:06,729 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-25 07:37:06,731 INFO L154 LiptonReduction]: Checked pairs total: 38 [2021-03-25 07:37:06,731 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:37:06,731 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 07:37:06,731 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 83 flow [2021-03-25 07:37:06,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:06,732 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:06,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 07:37:06,732 INFO L428 AbstractCegarLoop]: === Iteration 3 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:06,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:06,733 INFO L82 PathProgramCache]: Analyzing trace with hash -928709327, now seen corresponding path program 1 times [2021-03-25 07:37:06,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:06,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652961194] [2021-03-25 07:37:06,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:06,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 07:37:06,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:37:06,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 07:37:06,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 07:37:06,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 07:37:06,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 07:37:06,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:06,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:37:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:06,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652961194] [2021-03-25 07:37:06,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:06,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:37:06,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982442613] [2021-03-25 07:37:06,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 07:37:06,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:06,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 07:37:06,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 07:37:06,836 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 127 [2021-03-25 07:37:06,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 83 flow. Second operand has 8 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:06,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:06,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 127 [2021-03-25 07:37:06,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:07,036 INFO L129 PetriNetUnfolder]: 36/102 cut-off events. [2021-03-25 07:37:07,036 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-03-25 07:37:07,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 102 events. 36/102 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 282 event pairs, 6 based on Foata normal form. 2/97 useless extension candidates. Maximal degree in co-relation 186. Up to 28 conditions per place. [2021-03-25 07:37:07,037 INFO L132 encePairwiseOnDemand]: 119/127 looper letters, 35 selfloop transitions, 15 changer transitions 0/50 dead transitions. [2021-03-25 07:37:07,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 50 transitions, 257 flow [2021-03-25 07:37:07,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 07:37:07,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 07:37:07,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 562 transitions. [2021-03-25 07:37:07,039 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4916885389326334 [2021-03-25 07:37:07,039 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 562 transitions. [2021-03-25 07:37:07,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 562 transitions. [2021-03-25 07:37:07,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:07,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 562 transitions. [2021-03-25 07:37:07,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 62.44444444444444) internal successors, (562), 9 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,044 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,044 INFO L185 Difference]: Start difference. First operand has 27 places, 23 transitions, 83 flow. Second operand 9 states and 562 transitions. [2021-03-25 07:37:07,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 50 transitions, 257 flow [2021-03-25 07:37:07,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 50 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 07:37:07,046 INFO L241 Difference]: Finished difference. Result has 37 places, 32 transitions, 166 flow [2021-03-25 07:37:07,046 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=166, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2021-03-25 07:37:07,046 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2021-03-25 07:37:07,046 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:07,047 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 32 transitions, 166 flow [2021-03-25 07:37:07,047 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 32 transitions, 166 flow [2021-03-25 07:37:07,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 166 flow [2021-03-25 07:37:07,052 INFO L129 PetriNetUnfolder]: 8/52 cut-off events. [2021-03-25 07:37:07,053 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-25 07:37:07,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 52 events. 8/52 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 136 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 71. Up to 8 conditions per place. [2021-03-25 07:37:07,053 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 07:37:07,056 INFO L154 LiptonReduction]: Checked pairs total: 60 [2021-03-25 07:37:07,056 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:37:07,056 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 07:37:07,056 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 166 flow [2021-03-25 07:37:07,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,057 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:07,057 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:07,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 07:37:07,057 INFO L428 AbstractCegarLoop]: === Iteration 4 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:07,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:07,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1011245093, now seen corresponding path program 2 times [2021-03-25 07:37:07,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:07,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793183542] [2021-03-25 07:37:07,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:07,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:07,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:07,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 07:37:07,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 07:37:07,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 07:37:07,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:07,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:07,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793183542] [2021-03-25 07:37:07,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:07,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 07:37:07,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453380263] [2021-03-25 07:37:07,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:37:07,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:07,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:37:07,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:37:07,155 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 127 [2021-03-25 07:37:07,155 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 166 flow. Second operand has 9 states, 9 states have (on average 51.22222222222222) internal successors, (461), 9 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,155 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:07,155 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 127 [2021-03-25 07:37:07,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:07,390 INFO L129 PetriNetUnfolder]: 56/177 cut-off events. [2021-03-25 07:37:07,390 INFO L130 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2021-03-25 07:37:07,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 177 events. 56/177 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 762 event pairs, 6 based on Foata normal form. 2/166 useless extension candidates. Maximal degree in co-relation 379. Up to 63 conditions per place. [2021-03-25 07:37:07,395 INFO L132 encePairwiseOnDemand]: 116/127 looper letters, 60 selfloop transitions, 15 changer transitions 3/78 dead transitions. [2021-03-25 07:37:07,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 78 transitions, 539 flow [2021-03-25 07:37:07,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 07:37:07,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 07:37:07,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 607 transitions. [2021-03-25 07:37:07,399 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4345025053686471 [2021-03-25 07:37:07,399 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 607 transitions. [2021-03-25 07:37:07,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 607 transitions. [2021-03-25 07:37:07,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:07,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 607 transitions. [2021-03-25 07:37:07,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 55.18181818181818) internal successors, (607), 11 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 127.0) internal successors, (1524), 12 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,403 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 127.0) internal successors, (1524), 12 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,403 INFO L185 Difference]: Start difference. First operand has 37 places, 32 transitions, 166 flow. Second operand 11 states and 607 transitions. [2021-03-25 07:37:07,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 78 transitions, 539 flow [2021-03-25 07:37:07,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 78 transitions, 523 flow, removed 8 selfloop flow, removed 0 redundant places. [2021-03-25 07:37:07,411 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 291 flow [2021-03-25 07:37:07,411 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=291, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-03-25 07:37:07,411 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 22 predicate places. [2021-03-25 07:37:07,411 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:07,411 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 291 flow [2021-03-25 07:37:07,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 291 flow [2021-03-25 07:37:07,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 43 transitions, 291 flow [2021-03-25 07:37:07,424 INFO L129 PetriNetUnfolder]: 14/101 cut-off events. [2021-03-25 07:37:07,424 INFO L130 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2021-03-25 07:37:07,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 101 events. 14/101 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 443 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 256. Up to 13 conditions per place. [2021-03-25 07:37:07,430 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-25 07:37:07,434 INFO L154 LiptonReduction]: Checked pairs total: 16 [2021-03-25 07:37:07,434 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:37:07,434 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 07:37:07,435 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 43 transitions, 291 flow [2021-03-25 07:37:07,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 51.22222222222222) internal successors, (461), 9 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,435 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:07,435 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:07,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 07:37:07,436 INFO L428 AbstractCegarLoop]: === Iteration 5 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:07,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:07,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1607713456, now seen corresponding path program 1 times [2021-03-25 07:37:07,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:07,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367627914] [2021-03-25 07:37:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:07,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 07:37:07,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 07:37:07,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 07:37:07,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:37:07,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:37:07,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 07:37:07,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 07:37:07,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 07:37:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:07,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367627914] [2021-03-25 07:37:07,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:07,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 07:37:07,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576787757] [2021-03-25 07:37:07,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 07:37:07,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:07,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 07:37:07,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-25 07:37:07,595 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 127 [2021-03-25 07:37:07,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 43 transitions, 291 flow. Second operand has 9 states, 9 states have (on average 54.22222222222222) internal successors, (488), 9 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:07,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 127 [2021-03-25 07:37:07,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:07,777 INFO L129 PetriNetUnfolder]: 49/164 cut-off events. [2021-03-25 07:37:07,777 INFO L130 PetriNetUnfolder]: For 233/233 co-relation queries the response was YES. [2021-03-25 07:37:07,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 164 events. 49/164 cut-off events. For 233/233 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 667 event pairs, 16 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 565. Up to 55 conditions per place. [2021-03-25 07:37:07,779 INFO L132 encePairwiseOnDemand]: 118/127 looper letters, 34 selfloop transitions, 19 changer transitions 0/53 dead transitions. [2021-03-25 07:37:07,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 53 transitions, 429 flow [2021-03-25 07:37:07,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 07:37:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 07:37:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 458 transitions. [2021-03-25 07:37:07,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4507874015748031 [2021-03-25 07:37:07,781 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 458 transitions. [2021-03-25 07:37:07,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 458 transitions. [2021-03-25 07:37:07,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:07,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 458 transitions. [2021-03-25 07:37:07,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 57.25) internal successors, (458), 8 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,784 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,785 INFO L185 Difference]: Start difference. First operand has 52 places, 43 transitions, 291 flow. Second operand 8 states and 458 transitions. [2021-03-25 07:37:07,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 53 transitions, 429 flow [2021-03-25 07:37:07,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 419 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 07:37:07,788 INFO L241 Difference]: Finished difference. Result has 57 places, 41 transitions, 313 flow [2021-03-25 07:37:07,788 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=313, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2021-03-25 07:37:07,789 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 26 predicate places. [2021-03-25 07:37:07,789 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:07,789 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 41 transitions, 313 flow [2021-03-25 07:37:07,789 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 41 transitions, 313 flow [2021-03-25 07:37:07,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 41 transitions, 313 flow [2021-03-25 07:37:07,799 INFO L129 PetriNetUnfolder]: 13/99 cut-off events. [2021-03-25 07:37:07,800 INFO L130 PetriNetUnfolder]: For 153/153 co-relation queries the response was YES. [2021-03-25 07:37:07,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 99 events. 13/99 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 437 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 215. Up to 13 conditions per place. [2021-03-25 07:37:07,801 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-25 07:37:07,804 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-25 07:37:07,804 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:37:07,804 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-25 07:37:07,805 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 41 transitions, 313 flow [2021-03-25 07:37:07,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 54.22222222222222) internal successors, (488), 9 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:07,805 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:07,805 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:07,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 07:37:07,806 INFO L428 AbstractCegarLoop]: === Iteration 6 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:07,806 INFO L82 PathProgramCache]: Analyzing trace with hash -371648115, now seen corresponding path program 1 times [2021-03-25 07:37:07,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:07,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055345201] [2021-03-25 07:37:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:07,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:07,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:07,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:07,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 07:37:07,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:07,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:07,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:07,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:07,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 07:37:07,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:07,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:07,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:08,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:08,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055345201] [2021-03-25 07:37:08,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:08,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-25 07:37:08,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629781070] [2021-03-25 07:37:08,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 07:37:08,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:08,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 07:37:08,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-03-25 07:37:08,014 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 127 [2021-03-25 07:37:08,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 41 transitions, 313 flow. Second operand has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:08,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:08,015 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 127 [2021-03-25 07:37:08,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:08,400 INFO L129 PetriNetUnfolder]: 62/221 cut-off events. [2021-03-25 07:37:08,400 INFO L130 PetriNetUnfolder]: For 415/415 co-relation queries the response was YES. [2021-03-25 07:37:08,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 221 events. 62/221 cut-off events. For 415/415 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1086 event pairs, 14 based on Foata normal form. 4/212 useless extension candidates. Maximal degree in co-relation 687. Up to 57 conditions per place. [2021-03-25 07:37:08,402 INFO L132 encePairwiseOnDemand]: 113/127 looper letters, 46 selfloop transitions, 9 changer transitions 25/80 dead transitions. [2021-03-25 07:37:08,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 80 transitions, 733 flow [2021-03-25 07:37:08,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 07:37:08,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 07:37:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 610 transitions. [2021-03-25 07:37:08,405 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34308211473565803 [2021-03-25 07:37:08,405 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 610 transitions. [2021-03-25 07:37:08,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 610 transitions. [2021-03-25 07:37:08,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:08,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 610 transitions. [2021-03-25 07:37:08,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 43.57142857142857) internal successors, (610), 14 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:08,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 127.0) internal successors, (1905), 15 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:08,410 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 127.0) internal successors, (1905), 15 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:08,410 INFO L185 Difference]: Start difference. First operand has 56 places, 41 transitions, 313 flow. Second operand 14 states and 610 transitions. [2021-03-25 07:37:08,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 80 transitions, 733 flow [2021-03-25 07:37:08,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 80 transitions, 691 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-25 07:37:08,414 INFO L241 Difference]: Finished difference. Result has 73 places, 42 transitions, 353 flow [2021-03-25 07:37:08,415 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=353, PETRI_PLACES=73, PETRI_TRANSITIONS=42} [2021-03-25 07:37:08,415 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 42 predicate places. [2021-03-25 07:37:08,415 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:08,415 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 42 transitions, 353 flow [2021-03-25 07:37:08,415 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 42 transitions, 353 flow [2021-03-25 07:37:08,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 42 transitions, 353 flow [2021-03-25 07:37:08,425 INFO L129 PetriNetUnfolder]: 13/101 cut-off events. [2021-03-25 07:37:08,426 INFO L130 PetriNetUnfolder]: For 202/202 co-relation queries the response was YES. [2021-03-25 07:37:08,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 101 events. 13/101 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 452 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 316. Up to 13 conditions per place. [2021-03-25 07:37:08,427 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 07:37:08,634 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-25 07:37:08,634 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 07:37:08,634 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 219 [2021-03-25 07:37:08,635 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 42 transitions, 357 flow [2021-03-25 07:37:08,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:08,635 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:08,636 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:08,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 07:37:08,636 INFO L428 AbstractCegarLoop]: === Iteration 7 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:08,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:08,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1384884335, now seen corresponding path program 2 times [2021-03-25 07:37:08,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:08,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799071200] [2021-03-25 07:37:08,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:08,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:08,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:08,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:37:08,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 07:37:08,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 07:37:08,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 07:37:08,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 07:37:08,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 07:37:08,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:08,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 07:37:08,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:08,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:08,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:08,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799071200] [2021-03-25 07:37:08,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:08,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-25 07:37:08,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313196274] [2021-03-25 07:37:08,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 07:37:08,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:08,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 07:37:08,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-03-25 07:37:08,836 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 129 [2021-03-25 07:37:08,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 42 transitions, 357 flow. Second operand has 14 states, 14 states have (on average 39.142857142857146) internal successors, (548), 14 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:08,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:08,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 129 [2021-03-25 07:37:08,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:09,461 INFO L129 PetriNetUnfolder]: 51/190 cut-off events. [2021-03-25 07:37:09,461 INFO L130 PetriNetUnfolder]: For 463/463 co-relation queries the response was YES. [2021-03-25 07:37:09,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 839 conditions, 190 events. 51/190 cut-off events. For 463/463 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 894 event pairs, 7 based on Foata normal form. 4/181 useless extension candidates. Maximal degree in co-relation 775. Up to 51 conditions per place. [2021-03-25 07:37:09,463 INFO L132 encePairwiseOnDemand]: 113/129 looper letters, 44 selfloop transitions, 17 changer transitions 14/75 dead transitions. [2021-03-25 07:37:09,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 730 flow [2021-03-25 07:37:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 07:37:09,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 07:37:09,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 624 transitions. [2021-03-25 07:37:09,467 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32248062015503876 [2021-03-25 07:37:09,467 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 624 transitions. [2021-03-25 07:37:09,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 624 transitions. [2021-03-25 07:37:09,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:09,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 624 transitions. [2021-03-25 07:37:09,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 41.6) internal successors, (624), 15 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:09,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:09,474 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:09,474 INFO L185 Difference]: Start difference. First operand has 65 places, 42 transitions, 357 flow. Second operand 15 states and 624 transitions. [2021-03-25 07:37:09,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 730 flow [2021-03-25 07:37:09,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 75 transitions, 661 flow, removed 29 selfloop flow, removed 10 redundant places. [2021-03-25 07:37:09,483 INFO L241 Difference]: Finished difference. Result has 75 places, 43 transitions, 379 flow [2021-03-25 07:37:09,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=379, PETRI_PLACES=75, PETRI_TRANSITIONS=43} [2021-03-25 07:37:09,483 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 44 predicate places. [2021-03-25 07:37:09,483 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:09,484 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 43 transitions, 379 flow [2021-03-25 07:37:09,484 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 43 transitions, 379 flow [2021-03-25 07:37:09,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 43 transitions, 379 flow [2021-03-25 07:37:09,495 INFO L129 PetriNetUnfolder]: 13/101 cut-off events. [2021-03-25 07:37:09,496 INFO L130 PetriNetUnfolder]: For 249/249 co-relation queries the response was YES. [2021-03-25 07:37:09,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 101 events. 13/101 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 445 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 334. Up to 14 conditions per place. [2021-03-25 07:37:09,497 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 07:37:09,587 INFO L154 LiptonReduction]: Checked pairs total: 13 [2021-03-25 07:37:09,587 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:37:09,587 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-03-25 07:37:09,588 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 375 flow [2021-03-25 07:37:09,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 39.142857142857146) internal successors, (548), 14 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:09,588 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:09,588 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:09,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 07:37:09,588 INFO L428 AbstractCegarLoop]: === Iteration 8 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:09,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:09,589 INFO L82 PathProgramCache]: Analyzing trace with hash -827849925, now seen corresponding path program 1 times [2021-03-25 07:37:09,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:09,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782107926] [2021-03-25 07:37:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:09,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:09,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:09,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:09,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:09,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 07:37:09,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 07:37:09,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 07:37:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 07:37:09,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:09,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:09,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:09,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:09,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782107926] [2021-03-25 07:37:09,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:09,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 07:37:09,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328183031] [2021-03-25 07:37:09,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 07:37:09,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:09,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 07:37:09,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-25 07:37:09,724 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 130 [2021-03-25 07:37:09,724 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 375 flow. Second operand has 12 states, 12 states have (on average 41.25) internal successors, (495), 12 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:09,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:09,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 130 [2021-03-25 07:37:09,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:10,078 INFO L129 PetriNetUnfolder]: 43/160 cut-off events. [2021-03-25 07:37:10,078 INFO L130 PetriNetUnfolder]: For 479/479 co-relation queries the response was YES. [2021-03-25 07:37:10,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 160 events. 43/160 cut-off events. For 479/479 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 707 event pairs, 5 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 686. Up to 51 conditions per place. [2021-03-25 07:37:10,079 INFO L132 encePairwiseOnDemand]: 115/130 looper letters, 25 selfloop transitions, 24 changer transitions 8/57 dead transitions. [2021-03-25 07:37:10,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 57 transitions, 607 flow [2021-03-25 07:37:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 07:37:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 07:37:10,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 558 transitions. [2021-03-25 07:37:10,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3301775147928994 [2021-03-25 07:37:10,082 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 558 transitions. [2021-03-25 07:37:10,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 558 transitions. [2021-03-25 07:37:10,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:10,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 558 transitions. [2021-03-25 07:37:10,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 42.92307692307692) internal successors, (558), 13 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,086 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,086 INFO L185 Difference]: Start difference. First operand has 67 places, 42 transitions, 375 flow. Second operand 13 states and 558 transitions. [2021-03-25 07:37:10,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 57 transitions, 607 flow [2021-03-25 07:37:10,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 57 transitions, 550 flow, removed 10 selfloop flow, removed 10 redundant places. [2021-03-25 07:37:10,090 INFO L241 Difference]: Finished difference. Result has 73 places, 42 transitions, 402 flow [2021-03-25 07:37:10,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=402, PETRI_PLACES=73, PETRI_TRANSITIONS=42} [2021-03-25 07:37:10,090 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 42 predicate places. [2021-03-25 07:37:10,090 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:10,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 42 transitions, 402 flow [2021-03-25 07:37:10,091 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 42 transitions, 402 flow [2021-03-25 07:37:10,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 42 transitions, 402 flow [2021-03-25 07:37:10,113 INFO L129 PetriNetUnfolder]: 13/100 cut-off events. [2021-03-25 07:37:10,113 INFO L130 PetriNetUnfolder]: For 278/279 co-relation queries the response was YES. [2021-03-25 07:37:10,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 100 events. 13/100 cut-off events. For 278/279 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 453 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 377. Up to 14 conditions per place. [2021-03-25 07:37:10,114 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-25 07:37:10,117 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-25 07:37:10,117 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:37:10,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 07:37:10,120 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 42 transitions, 402 flow [2021-03-25 07:37:10,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 41.25) internal successors, (495), 12 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,120 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:10,120 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:10,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 07:37:10,121 INFO L428 AbstractCegarLoop]: === Iteration 9 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:10,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:10,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1229737782, now seen corresponding path program 1 times [2021-03-25 07:37:10,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:10,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063395685] [2021-03-25 07:37:10,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:10,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:10,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:10,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:10,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:10,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:10,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:10,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:10,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 07:37:10,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:10,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:10,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063395685] [2021-03-25 07:37:10,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:10,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 07:37:10,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951184073] [2021-03-25 07:37:10,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 07:37:10,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:10,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 07:37:10,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-25 07:37:10,290 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 130 [2021-03-25 07:37:10,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 42 transitions, 402 flow. Second operand has 12 states, 12 states have (on average 41.25) internal successors, (495), 12 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:10,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 130 [2021-03-25 07:37:10,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:10,702 INFO L129 PetriNetUnfolder]: 48/179 cut-off events. [2021-03-25 07:37:10,702 INFO L130 PetriNetUnfolder]: For 541/541 co-relation queries the response was YES. [2021-03-25 07:37:10,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 179 events. 48/179 cut-off events. For 541/541 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 835 event pairs, 8 based on Foata normal form. 4/172 useless extension candidates. Maximal degree in co-relation 824. Up to 49 conditions per place. [2021-03-25 07:37:10,704 INFO L132 encePairwiseOnDemand]: 115/130 looper letters, 39 selfloop transitions, 10 changer transitions 24/73 dead transitions. [2021-03-25 07:37:10,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 73 transitions, 760 flow [2021-03-25 07:37:10,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 07:37:10,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 07:37:10,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 609 transitions. [2021-03-25 07:37:10,706 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3346153846153846 [2021-03-25 07:37:10,706 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 609 transitions. [2021-03-25 07:37:10,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 609 transitions. [2021-03-25 07:37:10,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:10,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 609 transitions. [2021-03-25 07:37:10,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 43.5) internal successors, (609), 14 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 130.0) internal successors, (1950), 15 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,711 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 130.0) internal successors, (1950), 15 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,711 INFO L185 Difference]: Start difference. First operand has 69 places, 42 transitions, 402 flow. Second operand 14 states and 609 transitions. [2021-03-25 07:37:10,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 73 transitions, 760 flow [2021-03-25 07:37:10,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 73 transitions, 678 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-03-25 07:37:10,715 INFO L241 Difference]: Finished difference. Result has 79 places, 40 transitions, 365 flow [2021-03-25 07:37:10,715 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=365, PETRI_PLACES=79, PETRI_TRANSITIONS=40} [2021-03-25 07:37:10,715 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 48 predicate places. [2021-03-25 07:37:10,716 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:10,716 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 40 transitions, 365 flow [2021-03-25 07:37:10,716 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 40 transitions, 365 flow [2021-03-25 07:37:10,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 40 transitions, 365 flow [2021-03-25 07:37:10,724 INFO L129 PetriNetUnfolder]: 9/81 cut-off events. [2021-03-25 07:37:10,724 INFO L130 PetriNetUnfolder]: For 284/285 co-relation queries the response was YES. [2021-03-25 07:37:10,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 81 events. 9/81 cut-off events. For 284/285 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 326 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 305. Up to 13 conditions per place. [2021-03-25 07:37:10,725 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-25 07:37:10,750 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 07:37:10,750 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:37:10,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-25 07:37:10,751 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 39 transitions, 361 flow [2021-03-25 07:37:10,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 41.25) internal successors, (495), 12 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:10,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:10,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 07:37:10,751 INFO L428 AbstractCegarLoop]: === Iteration 10 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:10,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:10,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1113963650, now seen corresponding path program 1 times [2021-03-25 07:37:10,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:10,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535886303] [2021-03-25 07:37:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:10,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:10,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:10,805 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-25 07:37:10,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 07:37:10,812 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 07:37:10,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 07:37:10,824 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size [2021-03-25 07:37:10,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 07:37:10,836 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size [2021-03-25 07:37:10,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 07:37:10,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:10,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:10,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 07:37:10,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:10,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:10,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:10,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535886303] [2021-03-25 07:37:10,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:10,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-25 07:37:10,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230167043] [2021-03-25 07:37:10,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 07:37:10,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:10,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 07:37:10,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-03-25 07:37:10,922 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 131 [2021-03-25 07:37:10,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 39 transitions, 361 flow. Second operand has 13 states, 13 states have (on average 40.15384615384615) internal successors, (522), 13 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:10,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:10,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 131 [2021-03-25 07:37:10,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:11,358 INFO L129 PetriNetUnfolder]: 30/118 cut-off events. [2021-03-25 07:37:11,359 INFO L130 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2021-03-25 07:37:11,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 118 events. 30/118 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 456 event pairs, 4 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 577. Up to 33 conditions per place. [2021-03-25 07:37:11,360 INFO L132 encePairwiseOnDemand]: 116/131 looper letters, 22 selfloop transitions, 5 changer transitions 32/59 dead transitions. [2021-03-25 07:37:11,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 59 transitions, 605 flow [2021-03-25 07:37:11,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 07:37:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 07:37:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 553 transitions. [2021-03-25 07:37:11,363 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3247210804462713 [2021-03-25 07:37:11,363 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 553 transitions. [2021-03-25 07:37:11,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 553 transitions. [2021-03-25 07:37:11,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:11,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 553 transitions. [2021-03-25 07:37:11,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 42.53846153846154) internal successors, (553), 13 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,367 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 131.0) internal successors, (1834), 14 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,367 INFO L185 Difference]: Start difference. First operand has 71 places, 39 transitions, 361 flow. Second operand 13 states and 553 transitions. [2021-03-25 07:37:11,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 59 transitions, 605 flow [2021-03-25 07:37:11,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 59 transitions, 546 flow, removed 20 selfloop flow, removed 13 redundant places. [2021-03-25 07:37:11,371 INFO L241 Difference]: Finished difference. Result has 74 places, 21 transitions, 149 flow [2021-03-25 07:37:11,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=149, PETRI_PLACES=74, PETRI_TRANSITIONS=21} [2021-03-25 07:37:11,371 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 43 predicate places. [2021-03-25 07:37:11,371 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:11,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 21 transitions, 149 flow [2021-03-25 07:37:11,372 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 21 transitions, 149 flow [2021-03-25 07:37:11,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 21 transitions, 149 flow [2021-03-25 07:37:11,376 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-03-25 07:37:11,377 INFO L130 PetriNetUnfolder]: For 73/74 co-relation queries the response was YES. [2021-03-25 07:37:11,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 28 events. 2/28 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 96. Up to 6 conditions per place. [2021-03-25 07:37:11,377 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-25 07:37:11,534 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 07:37:11,534 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 07:37:11,534 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 163 [2021-03-25 07:37:11,534 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 20 transitions, 147 flow [2021-03-25 07:37:11,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 40.15384615384615) internal successors, (522), 13 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,535 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:11,535 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:11,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 07:37:11,535 INFO L428 AbstractCegarLoop]: === Iteration 11 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:11,535 INFO L82 PathProgramCache]: Analyzing trace with hash 139596043, now seen corresponding path program 1 times [2021-03-25 07:37:11,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:11,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951644805] [2021-03-25 07:37:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:11,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:11,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:11,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:11,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:11,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 07:37:11,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 07:37:11,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:11,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 07:37:11,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:11,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:11,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:11,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:11,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951644805] [2021-03-25 07:37:11,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:11,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 07:37:11,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045805867] [2021-03-25 07:37:11,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 07:37:11,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:11,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 07:37:11,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-25 07:37:11,669 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 132 [2021-03-25 07:37:11,670 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 20 transitions, 147 flow. Second operand has 12 states, 12 states have (on average 41.166666666666664) internal successors, (494), 12 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:11,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 132 [2021-03-25 07:37:11,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:11,979 INFO L129 PetriNetUnfolder]: 18/65 cut-off events. [2021-03-25 07:37:11,979 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2021-03-25 07:37:11,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 65 events. 18/65 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 172 event pairs, 4 based on Foata normal form. 2/64 useless extension candidates. Maximal degree in co-relation 291. Up to 19 conditions per place. [2021-03-25 07:37:11,980 INFO L132 encePairwiseOnDemand]: 119/132 looper letters, 14 selfloop transitions, 11 changer transitions 9/34 dead transitions. [2021-03-25 07:37:11,980 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 34 transitions, 340 flow [2021-03-25 07:37:11,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 07:37:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 07:37:11,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 511 transitions. [2021-03-25 07:37:11,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3226010101010101 [2021-03-25 07:37:11,982 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 511 transitions. [2021-03-25 07:37:11,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 511 transitions. [2021-03-25 07:37:11,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:11,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 511 transitions. [2021-03-25 07:37:11,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 42.583333333333336) internal successors, (511), 12 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,986 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,986 INFO L185 Difference]: Start difference. First operand has 51 places, 20 transitions, 147 flow. Second operand 12 states and 511 transitions. [2021-03-25 07:37:11,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 34 transitions, 340 flow [2021-03-25 07:37:11,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 224 flow, removed 21 selfloop flow, removed 23 redundant places. [2021-03-25 07:37:11,988 INFO L241 Difference]: Finished difference. Result has 42 places, 20 transitions, 117 flow [2021-03-25 07:37:11,989 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=117, PETRI_PLACES=42, PETRI_TRANSITIONS=20} [2021-03-25 07:37:11,989 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 11 predicate places. [2021-03-25 07:37:11,989 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:11,989 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 20 transitions, 117 flow [2021-03-25 07:37:11,989 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 20 transitions, 117 flow [2021-03-25 07:37:11,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 20 transitions, 117 flow [2021-03-25 07:37:11,993 INFO L129 PetriNetUnfolder]: 3/29 cut-off events. [2021-03-25 07:37:11,993 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-03-25 07:37:11,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 29 events. 3/29 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 78. Up to 6 conditions per place. [2021-03-25 07:37:11,994 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 07:37:11,995 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 07:37:11,995 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:37:11,995 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 07:37:11,995 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 117 flow [2021-03-25 07:37:11,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 41.166666666666664) internal successors, (494), 12 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:11,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:11,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:11,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 07:37:11,996 INFO L428 AbstractCegarLoop]: === Iteration 12 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:11,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:11,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1078471828, now seen corresponding path program 1 times [2021-03-25 07:37:11,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:11,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102945965] [2021-03-25 07:37:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:12,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:12,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:12,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:12,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:12,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 07:37:12,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:12,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:12,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 07:37:12,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:12,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:12,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102945965] [2021-03-25 07:37:12,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:12,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 07:37:12,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632166552] [2021-03-25 07:37:12,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 07:37:12,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:12,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 07:37:12,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-25 07:37:12,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 132 [2021-03-25 07:37:12,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 117 flow. Second operand has 12 states, 12 states have (on average 41.083333333333336) internal successors, (493), 12 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:12,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 132 [2021-03-25 07:37:12,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:12,412 INFO L129 PetriNetUnfolder]: 21/72 cut-off events. [2021-03-25 07:37:12,413 INFO L130 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2021-03-25 07:37:12,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 72 events. 21/72 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 209 event pairs, 4 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 257. Up to 20 conditions per place. [2021-03-25 07:37:12,413 INFO L132 encePairwiseOnDemand]: 119/132 looper letters, 18 selfloop transitions, 7 changer transitions 13/38 dead transitions. [2021-03-25 07:37:12,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 296 flow [2021-03-25 07:37:12,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 07:37:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 07:37:12,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 515 transitions. [2021-03-25 07:37:12,415 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32512626262626265 [2021-03-25 07:37:12,415 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 515 transitions. [2021-03-25 07:37:12,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 515 transitions. [2021-03-25 07:37:12,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:12,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 515 transitions. [2021-03-25 07:37:12,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 42.916666666666664) internal successors, (515), 12 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,421 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,421 INFO L185 Difference]: Start difference. First operand has 38 places, 20 transitions, 117 flow. Second operand 12 states and 515 transitions. [2021-03-25 07:37:12,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 296 flow [2021-03-25 07:37:12,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 248 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-25 07:37:12,422 INFO L241 Difference]: Finished difference. Result has 45 places, 20 transitions, 121 flow [2021-03-25 07:37:12,422 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=121, PETRI_PLACES=45, PETRI_TRANSITIONS=20} [2021-03-25 07:37:12,423 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 14 predicate places. [2021-03-25 07:37:12,423 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:12,423 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 20 transitions, 121 flow [2021-03-25 07:37:12,423 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 20 transitions, 121 flow [2021-03-25 07:37:12,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 20 transitions, 121 flow [2021-03-25 07:37:12,428 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-25 07:37:12,428 INFO L130 PetriNetUnfolder]: For 51/52 co-relation queries the response was YES. [2021-03-25 07:37:12,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 30 events. 3/30 cut-off events. For 51/52 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 85. Up to 7 conditions per place. [2021-03-25 07:37:12,429 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 07:37:12,429 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 07:37:12,429 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:37:12,430 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 07:37:12,431 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 20 transitions, 121 flow [2021-03-25 07:37:12,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 41.083333333333336) internal successors, (493), 12 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,432 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:12,432 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:12,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 07:37:12,432 INFO L428 AbstractCegarLoop]: === Iteration 13 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:12,432 INFO L82 PathProgramCache]: Analyzing trace with hash 219090688, now seen corresponding path program 2 times [2021-03-25 07:37:12,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:12,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108931446] [2021-03-25 07:37:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:12,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:12,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:12,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:12,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 07:37:12,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 07:37:12,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:12,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 07:37:12,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 07:37:12,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:12,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:12,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:12,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108931446] [2021-03-25 07:37:12,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:12,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 07:37:12,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775338805] [2021-03-25 07:37:12,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 07:37:12,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:12,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 07:37:12,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-25 07:37:12,589 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 132 [2021-03-25 07:37:12,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 20 transitions, 121 flow. Second operand has 12 states, 12 states have (on average 41.083333333333336) internal successors, (493), 12 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:12,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 132 [2021-03-25 07:37:12,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:12,861 INFO L129 PetriNetUnfolder]: 12/47 cut-off events. [2021-03-25 07:37:12,861 INFO L130 PetriNetUnfolder]: For 98/98 co-relation queries the response was YES. [2021-03-25 07:37:12,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 47 events. 12/47 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 4 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 177. Up to 12 conditions per place. [2021-03-25 07:37:12,861 INFO L132 encePairwiseOnDemand]: 119/132 looper letters, 10 selfloop transitions, 6 changer transitions 14/30 dead transitions. [2021-03-25 07:37:12,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 30 transitions, 236 flow [2021-03-25 07:37:12,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 07:37:12,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 07:37:12,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 510 transitions. [2021-03-25 07:37:12,863 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32196969696969696 [2021-03-25 07:37:12,863 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 510 transitions. [2021-03-25 07:37:12,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 510 transitions. [2021-03-25 07:37:12,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:12,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 510 transitions. [2021-03-25 07:37:12,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 42.5) internal successors, (510), 12 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,866 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,866 INFO L185 Difference]: Start difference. First operand has 40 places, 20 transitions, 121 flow. Second operand 12 states and 510 transitions. [2021-03-25 07:37:12,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 30 transitions, 236 flow [2021-03-25 07:37:12,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 195 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-25 07:37:12,867 INFO L241 Difference]: Finished difference. Result has 44 places, 15 transitions, 80 flow [2021-03-25 07:37:12,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=80, PETRI_PLACES=44, PETRI_TRANSITIONS=15} [2021-03-25 07:37:12,867 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-25 07:37:12,867 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:12,868 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 15 transitions, 80 flow [2021-03-25 07:37:12,868 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 15 transitions, 80 flow [2021-03-25 07:37:12,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 15 transitions, 80 flow [2021-03-25 07:37:12,870 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-03-25 07:37:12,870 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-25 07:37:12,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 15 events. 1/15 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 36. Up to 3 conditions per place. [2021-03-25 07:37:12,870 INFO L142 LiptonReduction]: Number of co-enabled transitions 6 [2021-03-25 07:37:12,945 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 07:37:12,945 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 07:37:12,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-25 07:37:12,946 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 13 transitions, 76 flow [2021-03-25 07:37:12,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 41.083333333333336) internal successors, (493), 12 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:12,946 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:37:12,946 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 07:37:12,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 07:37:12,947 INFO L428 AbstractCegarLoop]: === Iteration 14 === [fooThread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, fooErr0INUSE_VIOLATION, barErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:37:12,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:37:12,947 INFO L82 PathProgramCache]: Analyzing trace with hash 630318832, now seen corresponding path program 1 times [2021-03-25 07:37:12,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:37:12,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461195524] [2021-03-25 07:37:12,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:37:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 07:37:12,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:12,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 07:37:12,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 07:37:12,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 07:37:12,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 07:37:12,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:12,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 07:37:13,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:13,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 07:37:13,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:13,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 07:37:13,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:13,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 07:37:13,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:13,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:13,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 07:37:13,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 07:37:13,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 07:37:13,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461195524] [2021-03-25 07:37:13,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 07:37:13,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-25 07:37:13,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851588137] [2021-03-25 07:37:13,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 07:37:13,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 07:37:13,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 07:37:13,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-03-25 07:37:13,090 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 134 [2021-03-25 07:37:13,091 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 13 transitions, 76 flow. Second operand has 13 states, 13 states have (on average 40.07692307692308) internal successors, (521), 13 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:13,091 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 07:37:13,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 134 [2021-03-25 07:37:13,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 07:37:13,284 INFO L129 PetriNetUnfolder]: 3/16 cut-off events. [2021-03-25 07:37:13,284 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-03-25 07:37:13,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 16 events. 3/16 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 7 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 58. Up to 4 conditions per place. [2021-03-25 07:37:13,284 INFO L132 encePairwiseOnDemand]: 122/134 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-03-25 07:37:13,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 15 transitions, 110 flow [2021-03-25 07:37:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 07:37:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 07:37:13,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 523 transitions. [2021-03-25 07:37:13,285 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3002296211251435 [2021-03-25 07:37:13,285 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 523 transitions. [2021-03-25 07:37:13,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 523 transitions. [2021-03-25 07:37:13,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 07:37:13,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 523 transitions. [2021-03-25 07:37:13,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 40.23076923076923) internal successors, (523), 13 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:13,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:13,289 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:13,289 INFO L185 Difference]: Start difference. First operand has 33 places, 13 transitions, 76 flow. Second operand 13 states and 523 transitions. [2021-03-25 07:37:13,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 15 transitions, 110 flow [2021-03-25 07:37:13,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 15 transitions, 71 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-25 07:37:13,290 INFO L241 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2021-03-25 07:37:13,290 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2021-03-25 07:37:13,290 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2021-03-25 07:37:13,290 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:37:13,290 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 0 transitions, 0 flow [2021-03-25 07:37:13,291 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 0 transitions, 0 flow [2021-03-25 07:37:13,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 07:37:13,292 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 07:37:13,292 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:37:13,292 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. [2021-03-25 07:37:13,292 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 07:37:13,292 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:37:13,292 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:37:13,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-03-25 07:37:13,293 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 07:37:13,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 40.07692307692308) internal successors, (521), 13 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 07:37:13,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 07:37:13,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 07:37:13 BasicIcfg [2021-03-25 07:37:13,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 07:37:13,297 INFO L168 Benchmark]: Toolchain (without parser) took 9879.15 ms. Allocated memory was 255.9 MB in the beginning and 536.9 MB in the end (delta: 281.0 MB). Free memory was 234.3 MB in the beginning and 381.8 MB in the end (delta: -147.5 MB). Peak memory consumption was 132.7 MB. Max. memory is 16.0 GB. [2021-03-25 07:37:13,297 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:37:13,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.20 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 233.9 MB in the beginning and 354.3 MB in the end (delta: -120.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. [2021-03-25 07:37:13,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.48 ms. Allocated memory is still 371.2 MB. Free memory was 354.3 MB in the beginning and 352.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:37:13,297 INFO L168 Benchmark]: Boogie Preprocessor took 27.60 ms. Allocated memory is still 371.2 MB. Free memory was 352.8 MB in the beginning and 351.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 07:37:13,301 INFO L168 Benchmark]: RCFGBuilder took 349.19 ms. Allocated memory is still 371.2 MB. Free memory was 351.3 MB in the beginning and 331.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-25 07:37:13,301 INFO L168 Benchmark]: TraceAbstraction took 9215.47 ms. Allocated memory was 371.2 MB in the beginning and 536.9 MB in the end (delta: 165.7 MB). Free memory was 330.9 MB in the beginning and 381.8 MB in the end (delta: -50.9 MB). Peak memory consumption was 113.6 MB. Max. memory is 16.0 GB. [2021-03-25 07:37:13,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 248.20 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 233.9 MB in the beginning and 354.3 MB in the end (delta: -120.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.48 ms. Allocated memory is still 371.2 MB. Free memory was 354.3 MB in the beginning and 352.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.60 ms. Allocated memory is still 371.2 MB. Free memory was 352.8 MB in the beginning and 351.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 349.19 ms. Allocated memory is still 371.2 MB. Free memory was 351.3 MB in the beginning and 331.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9215.47 ms. Allocated memory was 371.2 MB in the beginning and 536.9 MB in the end (delta: 165.7 MB). Free memory was 330.9 MB in the beginning and 381.8 MB in the end (delta: -50.9 MB). Peak memory consumption was 113.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1167.1ms, 63 PlacesBefore, 31 PlacesAfterwards, 59 TransitionsBefore, 27 TransitionsAfterwards, 294 CoEnabledTransitionPairs, 4 FixpointIterations, 6 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 34 TotalNumberOfCompositions, 338 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 187, positive: 165, positive conditional: 0, positive unconditional: 165, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 129, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 129, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 187, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 129, unknown conditional: 0, unknown unconditional: 129] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 548.9ms, 32 PlacesBefore, 25 PlacesAfterwards, 26 TransitionsBefore, 19 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 134 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 71, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 71, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.1ms, 27 PlacesBefore, 27 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 10, negative conditional: 0, negative unconditional: 10, 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: 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] , Cache Queries: [ total: 15, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 37 PlacesBefore, 37 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 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] , Cache Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.5ms, 53 PlacesBefore, 52 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, 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: 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] , Cache Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.0ms, 57 PlacesBefore, 56 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, 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: 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] , Cache Queries: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 219.1ms, 73 PlacesBefore, 65 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, 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: 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] , Cache Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 103.3ms, 75 PlacesBefore, 67 PlacesAfterwards, 43 TransitionsBefore, 42 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 13 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 6, negative conditional: 0, negative unconditional: 6, 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: 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] , Cache Queries: [ total: 7, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.3ms, 73 PlacesBefore, 69 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 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] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.5ms, 79 PlacesBefore, 71 PlacesAfterwards, 40 TransitionsBefore, 39 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 162.2ms, 74 PlacesBefore, 51 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 26 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.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] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6ms, 42 PlacesBefore, 38 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 20 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 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] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5ms, 45 PlacesBefore, 40 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 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] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.8ms, 44 PlacesBefore, 33 PlacesAfterwards, 15 TransitionsBefore, 13 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8ms, 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: 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] , 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): 1, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 9021.1ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4314.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1280.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 177 SDtfs, 540 SDslu, 419 SDs, 0 SdLazy, 2566 SolverSat, 218 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1438.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 2881.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=8, InterpolantAutomatonStates: 159, 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: 36.0ms SsaConstructionTime, 256.2ms SatisfiabilityAnalysisTime, 1695.0ms InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 177 ConstructedInterpolants, 0 QuantifiedInterpolants, 2726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...