/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/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 03:16:47,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 03:16:47,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 03:16:47,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 03:16:47,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 03:16:47,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 03:16:47,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 03:16:47,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 03:16:47,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 03:16:47,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 03:16:47,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 03:16:47,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 03:16:47,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 03:16:47,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 03:16:47,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 03:16:47,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 03:16:47,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 03:16:47,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 03:16:47,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 03:16:47,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 03:16:47,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 03:16:47,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 03:16:47,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 03:16:47,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 03:16:47,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 03:16:47,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 03:16:47,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 03:16:47,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 03:16:47,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 03:16:47,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 03:16:47,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 03:16:47,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 03:16:47,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 03:16:47,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 03:16:47,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 03:16:47,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 03:16:47,911 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 03:16:47,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 03:16:47,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 03:16:47,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 03:16:47,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 03:16:47,944 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 03:16:47,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 03:16:47,945 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 03:16:47,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 03:16:47,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 03:16:47,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 03:16:47,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 03:16:47,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 03:16:47,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 03:16:47,946 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 03:16:47,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 03:16:47,946 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 03:16:47,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 03:16:47,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 03:16:47,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 03:16:47,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 03:16:47,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 03:16:47,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 03:16:47,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 03:16:47,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 03:16:47,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 03:16:47,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 03:16:47,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 03:16:47,948 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 03:16:47,948 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 03:16:47,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 03:16:47,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 03:16:48,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 03:16:48,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 03:16:48,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 03:16:48,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 03:16:48,284 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 03:16:48,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-25 03:16:48,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4abe64cf/b1aec52dfb154796ba8e770f74873799/FLAG2d35b13b2 [2021-03-25 03:16:48,820 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 03:16:48,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-25 03:16:48,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4abe64cf/b1aec52dfb154796ba8e770f74873799/FLAG2d35b13b2 [2021-03-25 03:16:49,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4abe64cf/b1aec52dfb154796ba8e770f74873799 [2021-03-25 03:16:49,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 03:16:49,154 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 03:16:49,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 03:16:49,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 03:16:49,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 03:16:49,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0f6163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49, skipping insertion in model container [2021-03-25 03:16:49,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 03:16:49,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 03:16:49,334 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 03:16:49,533 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-03-25 03:16:49,542 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-03-25 03:16:49,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 03:16:49,555 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 03:16:49,576 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-25 03:16:49,593 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-03-25 03:16:49,600 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-03-25 03:16:49,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 03:16:49,673 INFO L208 MainTranslator]: Completed translation [2021-03-25 03:16:49,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49 WrapperNode [2021-03-25 03:16:49,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 03:16:49,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 03:16:49,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 03:16:49,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 03:16:49,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 03:16:49,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 03:16:49,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 03:16:49,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 03:16:49,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (1/1) ... [2021-03-25 03:16:49,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 03:16:49,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 03:16:49,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 03:16:49,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 03:16:49,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (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 03:16:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-25 03:16:49,833 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-25 03:16:49,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-25 03:16:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-25 03:16:49,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-25 03:16:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 03:16:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 03:16:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 03:16:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 03:16:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 03:16:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 03:16:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 03:16:49,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 03:16:49,837 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 03:16:50,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 03:16:50,148 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-03-25 03:16:50,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:16:50 BoogieIcfgContainer [2021-03-25 03:16:50,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 03:16:50,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 03:16:50,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 03:16:50,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 03:16:50,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 03:16:49" (1/3) ... [2021-03-25 03:16:50,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378341ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:16:50, skipping insertion in model container [2021-03-25 03:16:50,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 03:16:49" (2/3) ... [2021-03-25 03:16:50,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378341ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 03:16:50, skipping insertion in model container [2021-03-25 03:16:50,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 03:16:50" (3/3) ... [2021-03-25 03:16:50,156 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-03-25 03:16:50,160 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 03:16:50,167 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 03:16:50,168 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 03:16:50,192 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,192 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,193 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,193 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 03:16:50,224 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-25 03:16:50,239 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 03:16:50,260 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 03:16:50,260 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 03:16:50,260 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 03:16:50,261 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 03:16:50,261 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 03:16:50,261 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 03:16:50,261 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 03:16:50,261 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 03:16:50,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 125 transitions, 272 flow [2021-03-25 03:16:50,348 INFO L129 PetriNetUnfolder]: 25/125 cut-off events. [2021-03-25 03:16:50,348 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 03:16:50,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 125 events. 25/125 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 280 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2021-03-25 03:16:50,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 125 transitions, 272 flow [2021-03-25 03:16:50,364 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 113 transitions, 238 flow [2021-03-25 03:16:50,365 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:50,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 113 transitions, 238 flow [2021-03-25 03:16:50,380 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 113 transitions, 238 flow [2021-03-25 03:16:50,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 113 transitions, 238 flow [2021-03-25 03:16:50,410 INFO L129 PetriNetUnfolder]: 24/115 cut-off events. [2021-03-25 03:16:50,410 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 03:16:50,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 115 events. 24/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 276 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2021-03-25 03:16:50,418 INFO L142 LiptonReduction]: Number of co-enabled transitions 4816 [2021-03-25 03:16:51,803 INFO L154 LiptonReduction]: Checked pairs total: 3070 [2021-03-25 03:16:51,804 INFO L156 LiptonReduction]: Total number of compositions: 46 [2021-03-25 03:16:51,806 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1442 [2021-03-25 03:16:51,812 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-03-25 03:16:51,812 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 03:16:51,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:51,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:51,813 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:51,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:51,818 INFO L82 PathProgramCache]: Analyzing trace with hash -2103324470, now seen corresponding path program 1 times [2021-03-25 03:16:51,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:51,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618392178] [2021-03-25 03:16:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:51,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:51,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:51,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:51,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:51,973 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 03:16:51,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618392178] [2021-03-25 03:16:51,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:51,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 03:16:51,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569789332] [2021-03-25 03:16:51,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-25 03:16:51,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:51,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-25 03:16:51,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-25 03:16:51,995 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 171 [2021-03-25 03:16:51,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 78 transitions, 168 flow. Second operand has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 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 03:16:51,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:51,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 171 [2021-03-25 03:16:51,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:52,020 INFO L129 PetriNetUnfolder]: 12/70 cut-off events. [2021-03-25 03:16:52,020 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 03:16:52,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 12/70 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 7/62 useless extension candidates. Maximal degree in co-relation 76. Up to 3 conditions per place. [2021-03-25 03:16:52,023 INFO L132 encePairwiseOnDemand]: 164/171 looper letters, 0 selfloop transitions, 0 changer transitions 0/69 dead transitions. [2021-03-25 03:16:52,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 69 transitions, 150 flow [2021-03-25 03:16:52,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-25 03:16:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-25 03:16:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 313 transitions. [2021-03-25 03:16:52,039 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9152046783625731 [2021-03-25 03:16:52,039 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 313 transitions. [2021-03-25 03:16:52,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 313 transitions. [2021-03-25 03:16:52,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:52,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 313 transitions. [2021-03-25 03:16:52,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 156.5) internal successors, (313), 2 states have internal predecessors, (313), 0 states have call successors, (0), 0 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 03:16:52,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 03:16:52,058 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 03:16:52,059 INFO L185 Difference]: Start difference. First operand has 65 places, 78 transitions, 168 flow. Second operand 2 states and 313 transitions. [2021-03-25 03:16:52,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 69 transitions, 150 flow [2021-03-25 03:16:52,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 69 transitions, 142 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 03:16:52,063 INFO L241 Difference]: Finished difference. Result has 60 places, 69 transitions, 142 flow [2021-03-25 03:16:52,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=60, PETRI_TRANSITIONS=69} [2021-03-25 03:16:52,066 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -5 predicate places. [2021-03-25 03:16:52,066 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:52,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 69 transitions, 142 flow [2021-03-25 03:16:52,066 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 69 transitions, 142 flow [2021-03-25 03:16:52,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 69 transitions, 142 flow [2021-03-25 03:16:52,072 INFO L129 PetriNetUnfolder]: 12/70 cut-off events. [2021-03-25 03:16:52,072 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 03:16:52,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 70 events. 12/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 151 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-03-25 03:16:52,074 INFO L142 LiptonReduction]: Number of co-enabled transitions 2214 [2021-03-25 03:16:52,525 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-03-25 03:16:52,823 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-03-25 03:16:52,936 INFO L154 LiptonReduction]: Checked pairs total: 1340 [2021-03-25 03:16:52,936 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 03:16:52,937 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 871 [2021-03-25 03:16:52,937 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 67 transitions, 138 flow [2021-03-25 03:16:52,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 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 03:16:52,938 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:52,938 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:52,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 03:16:52,938 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:52,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1344150679, now seen corresponding path program 1 times [2021-03-25 03:16:52,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:52,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435297175] [2021-03-25 03:16:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:53,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:53,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:53,020 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 03:16:53,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435297175] [2021-03-25 03:16:53,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:53,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 03:16:53,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464322845] [2021-03-25 03:16:53,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 03:16:53,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:53,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 03:16:53,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 03:16:53,030 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 181 [2021-03-25 03:16:53,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 67 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 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 03:16:53,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:53,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 181 [2021-03-25 03:16:53,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:53,088 INFO L129 PetriNetUnfolder]: 26/118 cut-off events. [2021-03-25 03:16:53,088 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 03:16:53,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 118 events. 26/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 375 event pairs, 4 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 138. Up to 26 conditions per place. [2021-03-25 03:16:53,090 INFO L132 encePairwiseOnDemand]: 173/181 looper letters, 9 selfloop transitions, 5 changer transitions 0/71 dead transitions. [2021-03-25 03:16:53,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 71 transitions, 174 flow [2021-03-25 03:16:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 03:16:53,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 03:16:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2021-03-25 03:16:53,093 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8324125230202578 [2021-03-25 03:16:53,093 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2021-03-25 03:16:53,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2021-03-25 03:16:53,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:53,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2021-03-25 03:16:53,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 03:16:53,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 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 03:16:53,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 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 03:16:53,099 INFO L185 Difference]: Start difference. First operand has 57 places, 67 transitions, 138 flow. Second operand 3 states and 452 transitions. [2021-03-25 03:16:53,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 71 transitions, 174 flow [2021-03-25 03:16:53,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 03:16:53,102 INFO L241 Difference]: Finished difference. Result has 61 places, 69 transitions, 172 flow [2021-03-25 03:16:53,103 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=61, PETRI_TRANSITIONS=69} [2021-03-25 03:16:53,103 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -4 predicate places. [2021-03-25 03:16:53,103 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:53,103 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 69 transitions, 172 flow [2021-03-25 03:16:53,104 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 69 transitions, 172 flow [2021-03-25 03:16:53,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 69 transitions, 172 flow [2021-03-25 03:16:53,114 INFO L129 PetriNetUnfolder]: 17/94 cut-off events. [2021-03-25 03:16:53,114 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-25 03:16:53,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 94 events. 17/94 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 239 event pairs, 2 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 105. Up to 13 conditions per place. [2021-03-25 03:16:53,119 INFO L142 LiptonReduction]: Number of co-enabled transitions 2094 [2021-03-25 03:16:53,194 INFO L154 LiptonReduction]: Checked pairs total: 1568 [2021-03-25 03:16:53,194 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 03:16:53,194 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-03-25 03:16:53,195 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 65 transitions, 164 flow [2021-03-25 03:16:53,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 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 03:16:53,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:53,195 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:53,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 03:16:53,196 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:53,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:53,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1440583921, now seen corresponding path program 1 times [2021-03-25 03:16:53,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:53,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411464989] [2021-03-25 03:16:53,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:53,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:53,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 03:16:53,229 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 03:16:53,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411464989] [2021-03-25 03:16:53,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:53,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 03:16:53,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434644604] [2021-03-25 03:16:53,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 03:16:53,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:53,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 03:16:53,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 03:16:53,234 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 185 [2021-03-25 03:16:53,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 65 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 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 03:16:53,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:53,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 185 [2021-03-25 03:16:53,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:53,261 INFO L129 PetriNetUnfolder]: 19/98 cut-off events. [2021-03-25 03:16:53,261 INFO L130 PetriNetUnfolder]: For 25/33 co-relation queries the response was YES. [2021-03-25 03:16:53,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 98 events. 19/98 cut-off events. For 25/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 290 event pairs, 3 based on Foata normal form. 9/93 useless extension candidates. Maximal degree in co-relation 139. Up to 16 conditions per place. [2021-03-25 03:16:53,262 INFO L132 encePairwiseOnDemand]: 179/185 looper letters, 7 selfloop transitions, 4 changer transitions 1/65 dead transitions. [2021-03-25 03:16:53,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 65 transitions, 188 flow [2021-03-25 03:16:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 03:16:53,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 03:16:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2021-03-25 03:16:53,266 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8306306306306306 [2021-03-25 03:16:53,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 461 transitions. [2021-03-25 03:16:53,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 461 transitions. [2021-03-25 03:16:53,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:53,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 461 transitions. [2021-03-25 03:16:53,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 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 03:16:53,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 0 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 03:16:53,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 0 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 03:16:53,271 INFO L185 Difference]: Start difference. First operand has 57 places, 65 transitions, 164 flow. Second operand 3 states and 461 transitions. [2021-03-25 03:16:53,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 65 transitions, 188 flow [2021-03-25 03:16:53,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 03:16:53,273 INFO L241 Difference]: Finished difference. Result has 58 places, 64 transitions, 166 flow [2021-03-25 03:16:53,274 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=58, PETRI_TRANSITIONS=64} [2021-03-25 03:16:53,275 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -7 predicate places. [2021-03-25 03:16:53,277 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:53,277 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 64 transitions, 166 flow [2021-03-25 03:16:53,278 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 64 transitions, 166 flow [2021-03-25 03:16:53,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 64 transitions, 166 flow [2021-03-25 03:16:53,286 INFO L129 PetriNetUnfolder]: 18/95 cut-off events. [2021-03-25 03:16:53,286 INFO L130 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2021-03-25 03:16:53,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 95 events. 18/95 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 281 event pairs, 2 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 116. Up to 13 conditions per place. [2021-03-25 03:16:53,288 INFO L142 LiptonReduction]: Number of co-enabled transitions 1774 [2021-03-25 03:16:53,297 INFO L154 LiptonReduction]: Checked pairs total: 426 [2021-03-25 03:16:53,297 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 03:16:53,297 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 03:16:53,299 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 64 transitions, 166 flow [2021-03-25 03:16:53,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 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 03:16:53,299 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:53,299 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:53,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 03:16:53,300 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:53,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:53,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1333114827, now seen corresponding path program 1 times [2021-03-25 03:16:53,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:53,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263830486] [2021-03-25 03:16:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:53,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:53,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:53,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:53,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:53,372 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 03:16:53,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263830486] [2021-03-25 03:16:53,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:53,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:16:53,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395263217] [2021-03-25 03:16:53,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 03:16:53,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:53,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 03:16:53,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 03:16:53,374 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 185 [2021-03-25 03:16:53,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 64 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 03:16:53,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:53,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 185 [2021-03-25 03:16:53,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:53,550 INFO L129 PetriNetUnfolder]: 357/854 cut-off events. [2021-03-25 03:16:53,550 INFO L130 PetriNetUnfolder]: For 141/144 co-relation queries the response was YES. [2021-03-25 03:16:53,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 854 events. 357/854 cut-off events. For 141/144 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4913 event pairs, 45 based on Foata normal form. 9/793 useless extension candidates. Maximal degree in co-relation 1454. Up to 228 conditions per place. [2021-03-25 03:16:53,555 INFO L132 encePairwiseOnDemand]: 171/185 looper letters, 45 selfloop transitions, 5 changer transitions 18/107 dead transitions. [2021-03-25 03:16:53,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 395 flow [2021-03-25 03:16:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 03:16:53,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 03:16:53,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 699 transitions. [2021-03-25 03:16:53,558 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7556756756756757 [2021-03-25 03:16:53,558 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 699 transitions. [2021-03-25 03:16:53,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 699 transitions. [2021-03-25 03:16:53,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:53,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 699 transitions. [2021-03-25 03:16:53,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 139.8) internal successors, (699), 5 states have internal predecessors, (699), 0 states have call successors, (0), 0 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 03:16:53,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 0 states have call successors, (0), 0 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 03:16:53,565 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 0 states have call successors, (0), 0 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 03:16:53,565 INFO L185 Difference]: Start difference. First operand has 57 places, 64 transitions, 166 flow. Second operand 5 states and 699 transitions. [2021-03-25 03:16:53,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 395 flow [2021-03-25 03:16:53,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 107 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 03:16:53,573 INFO L241 Difference]: Finished difference. Result has 64 places, 69 transitions, 240 flow [2021-03-25 03:16:53,573 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=64, PETRI_TRANSITIONS=69} [2021-03-25 03:16:53,573 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2021-03-25 03:16:53,574 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:53,574 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 69 transitions, 240 flow [2021-03-25 03:16:53,574 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 69 transitions, 240 flow [2021-03-25 03:16:53,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 69 transitions, 240 flow [2021-03-25 03:16:53,594 INFO L129 PetriNetUnfolder]: 101/348 cut-off events. [2021-03-25 03:16:53,594 INFO L130 PetriNetUnfolder]: For 100/104 co-relation queries the response was YES. [2021-03-25 03:16:53,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 348 events. 101/348 cut-off events. For 100/104 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1688 event pairs, 10 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 580. Up to 56 conditions per place. [2021-03-25 03:16:53,598 INFO L142 LiptonReduction]: Number of co-enabled transitions 1956 [2021-03-25 03:16:53,607 INFO L154 LiptonReduction]: Checked pairs total: 160 [2021-03-25 03:16:53,607 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 03:16:53,608 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-25 03:16:53,608 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 69 transitions, 240 flow [2021-03-25 03:16:53,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 126.75) internal successors, (507), 4 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 03:16:53,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:53,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:53,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 03:16:53,609 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:53,610 INFO L82 PathProgramCache]: Analyzing trace with hash -635652483, now seen corresponding path program 2 times [2021-03-25 03:16:53,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:53,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050154955] [2021-03-25 03:16:53,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:53,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:53,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:53,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:53,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:53,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:53,658 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 03:16:53,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050154955] [2021-03-25 03:16:53,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:53,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:16:53,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360733633] [2021-03-25 03:16:53,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 03:16:53,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:53,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 03:16:53,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 03:16:53,661 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2021-03-25 03:16:53,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 69 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 0 states have call successors, (0), 0 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 03:16:53,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:53,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2021-03-25 03:16:53,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:53,792 INFO L129 PetriNetUnfolder]: 326/1128 cut-off events. [2021-03-25 03:16:53,792 INFO L130 PetriNetUnfolder]: For 307/335 co-relation queries the response was YES. [2021-03-25 03:16:53,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1128 events. 326/1128 cut-off events. For 307/335 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7642 event pairs, 27 based on Foata normal form. 15/1022 useless extension candidates. Maximal degree in co-relation 1935. Up to 190 conditions per place. [2021-03-25 03:16:53,800 INFO L132 encePairwiseOnDemand]: 181/185 looper letters, 18 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2021-03-25 03:16:53,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 85 transitions, 325 flow [2021-03-25 03:16:53,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 03:16:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 03:16:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 790 transitions. [2021-03-25 03:16:53,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8540540540540541 [2021-03-25 03:16:53,803 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 790 transitions. [2021-03-25 03:16:53,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 790 transitions. [2021-03-25 03:16:53,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:53,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 790 transitions. [2021-03-25 03:16:53,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 0 states have call successors, (0), 0 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 03:16:53,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 0 states have call successors, (0), 0 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 03:16:53,807 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 0 states have call successors, (0), 0 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 03:16:53,807 INFO L185 Difference]: Start difference. First operand has 63 places, 69 transitions, 240 flow. Second operand 5 states and 790 transitions. [2021-03-25 03:16:53,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 85 transitions, 325 flow [2021-03-25 03:16:53,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 309 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-25 03:16:53,813 INFO L241 Difference]: Finished difference. Result has 70 places, 75 transitions, 274 flow [2021-03-25 03:16:53,814 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=274, PETRI_PLACES=70, PETRI_TRANSITIONS=75} [2021-03-25 03:16:53,814 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 5 predicate places. [2021-03-25 03:16:53,814 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:53,814 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 75 transitions, 274 flow [2021-03-25 03:16:53,814 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 75 transitions, 274 flow [2021-03-25 03:16:53,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 75 transitions, 274 flow [2021-03-25 03:16:53,871 INFO L129 PetriNetUnfolder]: 258/932 cut-off events. [2021-03-25 03:16:53,871 INFO L130 PetriNetUnfolder]: For 298/313 co-relation queries the response was YES. [2021-03-25 03:16:53,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1705 conditions, 932 events. 258/932 cut-off events. For 298/313 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6204 event pairs, 24 based on Foata normal form. 5/835 useless extension candidates. Maximal degree in co-relation 1629. Up to 162 conditions per place. [2021-03-25 03:16:53,884 INFO L142 LiptonReduction]: Number of co-enabled transitions 2252 [2021-03-25 03:16:54,052 INFO L154 LiptonReduction]: Checked pairs total: 169 [2021-03-25 03:16:54,052 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 03:16:54,052 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 238 [2021-03-25 03:16:54,055 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 74 transitions, 272 flow [2021-03-25 03:16:54,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 0 states have call successors, (0), 0 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 03:16:54,055 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:54,056 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:54,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 03:16:54,056 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:54,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:54,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1810235629, now seen corresponding path program 3 times [2021-03-25 03:16:54,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:54,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185704878] [2021-03-25 03:16:54,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:54,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:54,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:54,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:54,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:54,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:54,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:54,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:54,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:54,107 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 03:16:54,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185704878] [2021-03-25 03:16:54,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:54,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:16:54,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583445786] [2021-03-25 03:16:54,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 03:16:54,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:54,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 03:16:54,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 03:16:54,109 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 186 [2021-03-25 03:16:54,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 74 transitions, 272 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 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 03:16:54,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:54,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 186 [2021-03-25 03:16:54,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:54,401 INFO L129 PetriNetUnfolder]: 963/2559 cut-off events. [2021-03-25 03:16:54,401 INFO L130 PetriNetUnfolder]: For 1238/1275 co-relation queries the response was YES. [2021-03-25 03:16:54,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5701 conditions, 2559 events. 963/2559 cut-off events. For 1238/1275 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 18955 event pairs, 113 based on Foata normal form. 36/2435 useless extension candidates. Maximal degree in co-relation 3764. Up to 704 conditions per place. [2021-03-25 03:16:54,419 INFO L132 encePairwiseOnDemand]: 172/186 looper letters, 48 selfloop transitions, 10 changer transitions 14/117 dead transitions. [2021-03-25 03:16:54,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 117 transitions, 547 flow [2021-03-25 03:16:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 03:16:54,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 03:16:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 705 transitions. [2021-03-25 03:16:54,421 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7580645161290323 [2021-03-25 03:16:54,421 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 705 transitions. [2021-03-25 03:16:54,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 705 transitions. [2021-03-25 03:16:54,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:54,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 705 transitions. [2021-03-25 03:16:54,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 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 03:16:54,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 03:16:54,426 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 03:16:54,426 INFO L185 Difference]: Start difference. First operand has 69 places, 74 transitions, 272 flow. Second operand 5 states and 705 transitions. [2021-03-25 03:16:54,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 117 transitions, 547 flow [2021-03-25 03:16:54,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 117 transitions, 547 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 03:16:54,432 INFO L241 Difference]: Finished difference. Result has 77 places, 81 transitions, 372 flow [2021-03-25 03:16:54,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=372, PETRI_PLACES=77, PETRI_TRANSITIONS=81} [2021-03-25 03:16:54,433 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2021-03-25 03:16:54,433 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:54,433 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 81 transitions, 372 flow [2021-03-25 03:16:54,433 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 81 transitions, 372 flow [2021-03-25 03:16:54,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 81 transitions, 372 flow [2021-03-25 03:16:54,528 INFO L129 PetriNetUnfolder]: 369/1387 cut-off events. [2021-03-25 03:16:54,529 INFO L130 PetriNetUnfolder]: For 928/968 co-relation queries the response was YES. [2021-03-25 03:16:54,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3057 conditions, 1387 events. 369/1387 cut-off events. For 928/968 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 10109 event pairs, 35 based on Foata normal form. 6/1375 useless extension candidates. Maximal degree in co-relation 2937. Up to 280 conditions per place. [2021-03-25 03:16:54,549 INFO L142 LiptonReduction]: Number of co-enabled transitions 2428 [2021-03-25 03:16:54,693 INFO L154 LiptonReduction]: Checked pairs total: 79 [2021-03-25 03:16:54,693 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 03:16:54,694 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 261 [2021-03-25 03:16:54,695 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 81 transitions, 372 flow [2021-03-25 03:16:54,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 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 03:16:54,695 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:54,696 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:54,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 03:16:54,696 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:54,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1394552139, now seen corresponding path program 1 times [2021-03-25 03:16:54,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:54,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972888395] [2021-03-25 03:16:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:54,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:54,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:54,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:54,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:54,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:54,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:54,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:54,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:54,746 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 03:16:54,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972888395] [2021-03-25 03:16:54,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:54,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:16:54,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235879148] [2021-03-25 03:16:54,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 03:16:54,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:54,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 03:16:54,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 03:16:54,748 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 186 [2021-03-25 03:16:54,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 81 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 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 03:16:54,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:54,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 186 [2021-03-25 03:16:54,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:54,962 INFO L129 PetriNetUnfolder]: 625/2284 cut-off events. [2021-03-25 03:16:54,962 INFO L130 PetriNetUnfolder]: For 1950/2029 co-relation queries the response was YES. [2021-03-25 03:16:54,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5442 conditions, 2284 events. 625/2284 cut-off events. For 1950/2029 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 18079 event pairs, 44 based on Foata normal form. 54/2304 useless extension candidates. Maximal degree in co-relation 5283. Up to 409 conditions per place. [2021-03-25 03:16:54,978 INFO L132 encePairwiseOnDemand]: 182/186 looper letters, 24 selfloop transitions, 11 changer transitions 0/101 dead transitions. [2021-03-25 03:16:54,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 101 transitions, 540 flow [2021-03-25 03:16:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 03:16:54,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 03:16:54,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 794 transitions. [2021-03-25 03:16:54,981 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.853763440860215 [2021-03-25 03:16:54,981 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 794 transitions. [2021-03-25 03:16:54,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 794 transitions. [2021-03-25 03:16:54,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:54,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 794 transitions. [2021-03-25 03:16:54,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 0 states have call successors, (0), 0 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 03:16:54,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 03:16:54,984 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 186.0) internal successors, (1116), 6 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 03:16:54,984 INFO L185 Difference]: Start difference. First operand has 76 places, 81 transitions, 372 flow. Second operand 5 states and 794 transitions. [2021-03-25 03:16:54,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 101 transitions, 540 flow [2021-03-25 03:16:54,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 101 transitions, 524 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-25 03:16:54,994 INFO L241 Difference]: Finished difference. Result has 83 places, 89 transitions, 452 flow [2021-03-25 03:16:54,994 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=452, PETRI_PLACES=83, PETRI_TRANSITIONS=89} [2021-03-25 03:16:54,994 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 18 predicate places. [2021-03-25 03:16:54,994 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:54,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 89 transitions, 452 flow [2021-03-25 03:16:54,994 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 89 transitions, 452 flow [2021-03-25 03:16:54,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 89 transitions, 452 flow [2021-03-25 03:16:55,164 INFO L129 PetriNetUnfolder]: 534/2069 cut-off events. [2021-03-25 03:16:55,164 INFO L130 PetriNetUnfolder]: For 1592/1650 co-relation queries the response was YES. [2021-03-25 03:16:55,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4597 conditions, 2069 events. 534/2069 cut-off events. For 1592/1650 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 16414 event pairs, 48 based on Foata normal form. 18/2063 useless extension candidates. Maximal degree in co-relation 4436. Up to 392 conditions per place. [2021-03-25 03:16:55,197 INFO L142 LiptonReduction]: Number of co-enabled transitions 2674 [2021-03-25 03:16:55,726 INFO L154 LiptonReduction]: Checked pairs total: 103 [2021-03-25 03:16:55,726 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 03:16:55,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 732 [2021-03-25 03:16:55,727 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 88 transitions, 450 flow [2021-03-25 03:16:55,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 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 03:16:55,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:55,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:55,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 03:16:55,728 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:55,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:55,728 INFO L82 PathProgramCache]: Analyzing trace with hash 2143263744, now seen corresponding path program 1 times [2021-03-25 03:16:55,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:55,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091507725] [2021-03-25 03:16:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:55,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:55,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:55,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:55,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:55,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:55,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 03:16:55,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:55,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:55,781 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 03:16:55,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091507725] [2021-03-25 03:16:55,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:55,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:16:55,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489605614] [2021-03-25 03:16:55,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 03:16:55,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:55,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 03:16:55,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 03:16:55,783 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 187 [2021-03-25 03:16:55,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 88 transitions, 450 flow. Second operand has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 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 03:16:55,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:55,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 187 [2021-03-25 03:16:55,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:56,013 INFO L129 PetriNetUnfolder]: 571/2148 cut-off events. [2021-03-25 03:16:56,013 INFO L130 PetriNetUnfolder]: For 1473/1537 co-relation queries the response was YES. [2021-03-25 03:16:56,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4877 conditions, 2148 events. 571/2148 cut-off events. For 1473/1537 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 17448 event pairs, 48 based on Foata normal form. 78/2200 useless extension candidates. Maximal degree in co-relation 4721. Up to 436 conditions per place. [2021-03-25 03:16:56,029 INFO L132 encePairwiseOnDemand]: 178/187 looper letters, 10 selfloop transitions, 13 changer transitions 2/101 dead transitions. [2021-03-25 03:16:56,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 101 transitions, 536 flow [2021-03-25 03:16:56,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 03:16:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 03:16:56,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 765 transitions. [2021-03-25 03:16:56,031 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-03-25 03:16:56,031 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 765 transitions. [2021-03-25 03:16:56,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 765 transitions. [2021-03-25 03:16:56,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:56,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 765 transitions. [2021-03-25 03:16:56,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 0 states have call successors, (0), 0 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 03:16:56,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 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 03:16:56,035 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 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 03:16:56,035 INFO L185 Difference]: Start difference. First operand has 82 places, 88 transitions, 450 flow. Second operand 5 states and 765 transitions. [2021-03-25 03:16:56,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 101 transitions, 536 flow [2021-03-25 03:16:56,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 101 transitions, 536 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 03:16:56,044 INFO L241 Difference]: Finished difference. Result has 89 places, 96 transitions, 533 flow [2021-03-25 03:16:56,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=533, PETRI_PLACES=89, PETRI_TRANSITIONS=96} [2021-03-25 03:16:56,044 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 24 predicate places. [2021-03-25 03:16:56,045 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:56,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 96 transitions, 533 flow [2021-03-25 03:16:56,045 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 96 transitions, 533 flow [2021-03-25 03:16:56,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 96 transitions, 533 flow [2021-03-25 03:16:56,195 INFO L129 PetriNetUnfolder]: 537/2073 cut-off events. [2021-03-25 03:16:56,195 INFO L130 PetriNetUnfolder]: For 1693/1755 co-relation queries the response was YES. [2021-03-25 03:16:56,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4973 conditions, 2073 events. 537/2073 cut-off events. For 1693/1755 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 16756 event pairs, 53 based on Foata normal form. 25/2075 useless extension candidates. Maximal degree in co-relation 4814. Up to 423 conditions per place. [2021-03-25 03:16:56,229 INFO L142 LiptonReduction]: Number of co-enabled transitions 2538 [2021-03-25 03:16:56,308 INFO L154 LiptonReduction]: Checked pairs total: 37 [2021-03-25 03:16:56,308 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 03:16:56,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 263 [2021-03-25 03:16:56,309 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 96 transitions, 533 flow [2021-03-25 03:16:56,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 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 03:16:56,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 03:16:56,309 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 03:16:56,309 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 03:16:56,309 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 03:16:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 03:16:56,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1048033113, now seen corresponding path program 1 times [2021-03-25 03:16:56,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 03:16:56,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926871979] [2021-03-25 03:16:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 03:16:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 03:16:56,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:56,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:56,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:56,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 03:16:56,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:56,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 03:16:56,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 03:16:56,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 03:16:56,355 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 03:16:56,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926871979] [2021-03-25 03:16:56,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 03:16:56,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 03:16:56,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418751416] [2021-03-25 03:16:56,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 03:16:56,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 03:16:56,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 03:16:56,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 03:16:56,357 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 187 [2021-03-25 03:16:56,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 96 transitions, 533 flow. Second operand has 4 states, 4 states have (on average 150.25) internal successors, (601), 4 states have internal predecessors, (601), 0 states have call successors, (0), 0 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 03:16:56,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 03:16:56,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 187 [2021-03-25 03:16:56,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 03:16:56,555 INFO L129 PetriNetUnfolder]: 489/1823 cut-off events. [2021-03-25 03:16:56,555 INFO L130 PetriNetUnfolder]: For 1414/1466 co-relation queries the response was YES. [2021-03-25 03:16:56,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4498 conditions, 1823 events. 489/1823 cut-off events. For 1414/1466 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 14039 event pairs, 35 based on Foata normal form. 70/1871 useless extension candidates. Maximal degree in co-relation 4267. Up to 311 conditions per place. [2021-03-25 03:16:56,567 INFO L132 encePairwiseOnDemand]: 178/187 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2021-03-25 03:16:56,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 104 transitions, 584 flow [2021-03-25 03:16:56,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 03:16:56,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 03:16:56,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 771 transitions. [2021-03-25 03:16:56,570 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8245989304812834 [2021-03-25 03:16:56,570 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 771 transitions. [2021-03-25 03:16:56,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 771 transitions. [2021-03-25 03:16:56,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 03:16:56,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 771 transitions. [2021-03-25 03:16:56,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 0 states have call successors, (0), 0 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 03:16:56,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 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 03:16:56,574 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 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 03:16:56,574 INFO L185 Difference]: Start difference. First operand has 89 places, 96 transitions, 533 flow. Second operand 5 states and 771 transitions. [2021-03-25 03:16:56,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 104 transitions, 584 flow [2021-03-25 03:16:56,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 104 transitions, 564 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-25 03:16:56,586 INFO L241 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2021-03-25 03:16:56,586 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2021-03-25 03:16:56,587 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 26 predicate places. [2021-03-25 03:16:56,587 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 03:16:56,587 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 0 transitions, 0 flow [2021-03-25 03:16:56,587 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 0 transitions, 0 flow [2021-03-25 03:16:56,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 03:16:56,587 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 03:16:56,587 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 03:16:56,587 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 03:16:56,588 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 03:16:56,588 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 03:16:56,588 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 03:16:56,588 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 03:16:56,588 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 03:16:56,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.25) internal successors, (601), 4 states have internal predecessors, (601), 0 states have call successors, (0), 0 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 03:16:56,589 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 03:16:56,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 03:16:56 BasicIcfg [2021-03-25 03:16:56,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 03:16:56,594 INFO L168 Benchmark]: Toolchain (without parser) took 7439.66 ms. Allocated memory was 358.6 MB in the beginning and 467.7 MB in the end (delta: 109.1 MB). Free memory was 321.9 MB in the beginning and 394.0 MB in the end (delta: -72.2 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. [2021-03-25 03:16:56,594 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 358.6 MB. Free memory was 340.2 MB in the beginning and 340.1 MB in the end (delta: 75.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 03:16:56,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.15 ms. Allocated memory is still 358.6 MB. Free memory was 321.7 MB in the beginning and 320.8 MB in the end (delta: 843.6 kB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. [2021-03-25 03:16:56,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.78 ms. Allocated memory is still 358.6 MB. Free memory was 320.8 MB in the beginning and 319.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 03:16:56,595 INFO L168 Benchmark]: Boogie Preprocessor took 35.18 ms. Allocated memory is still 358.6 MB. Free memory was 319.8 MB in the beginning and 317.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 03:16:56,595 INFO L168 Benchmark]: RCFGBuilder took 390.99 ms. Allocated memory is still 358.6 MB. Free memory was 317.7 MB in the beginning and 289.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-25 03:16:56,595 INFO L168 Benchmark]: TraceAbstraction took 6441.49 ms. Allocated memory was 358.6 MB in the beginning and 467.7 MB in the end (delta: 109.1 MB). Free memory was 289.4 MB in the beginning and 394.0 MB in the end (delta: -104.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-03-25 03:16:56,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 358.6 MB. Free memory was 340.2 MB in the beginning and 340.1 MB in the end (delta: 75.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 518.15 ms. Allocated memory is still 358.6 MB. Free memory was 321.7 MB in the beginning and 320.8 MB in the end (delta: 843.6 kB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.78 ms. Allocated memory is still 358.6 MB. Free memory was 320.8 MB in the beginning and 319.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 35.18 ms. Allocated memory is still 358.6 MB. Free memory was 319.8 MB in the beginning and 317.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 390.99 ms. Allocated memory is still 358.6 MB. Free memory was 317.7 MB in the beginning and 289.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6441.49 ms. Allocated memory was 358.6 MB in the beginning and 467.7 MB in the end (delta: 109.1 MB). Free memory was 289.4 MB in the beginning and 394.0 MB in the end (delta: -104.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1424.0ms, 95 PlacesBefore, 65 PlacesAfterwards, 113 TransitionsBefore, 78 TransitionsAfterwards, 4816 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 5 ChoiceCompositions, 46 TotalNumberOfCompositions, 3070 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1749, positive: 1708, positive conditional: 0, positive unconditional: 1708, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1340, positive: 1325, positive conditional: 0, positive unconditional: 1325, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1340, positive: 1325, positive conditional: 0, positive unconditional: 1325, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1749, positive: 383, positive conditional: 0, positive unconditional: 383, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 1340, unknown conditional: 0, unknown unconditional: 1340] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 870.0ms, 60 PlacesBefore, 57 PlacesAfterwards, 69 TransitionsBefore, 67 TransitionsAfterwards, 2214 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1340 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 454, positive: 422, positive conditional: 0, positive unconditional: 422, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 313, positive: 305, positive conditional: 0, positive unconditional: 305, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 313, positive: 305, positive conditional: 0, positive unconditional: 305, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 454, positive: 117, positive conditional: 0, positive unconditional: 117, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 313, unknown conditional: 0, unknown unconditional: 313] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.8ms, 61 PlacesBefore, 57 PlacesAfterwards, 69 TransitionsBefore, 65 TransitionsAfterwards, 2094 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1568 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 388, positive: 343, positive conditional: 0, positive unconditional: 343, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 140, positive: 140, positive conditional: 0, positive unconditional: 140, 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: 140, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 388, positive: 203, positive conditional: 0, positive unconditional: 203, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.6ms, 58 PlacesBefore, 57 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1774 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 66, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 101, Positive conditional cache size: 0, Positive unconditional cache size: 101, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.4ms, 64 PlacesBefore, 63 PlacesAfterwards, 69 TransitionsBefore, 69 TransitionsAfterwards, 1956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 111, Positive conditional cache size: 0, Positive unconditional cache size: 111, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 237.9ms, 70 PlacesBefore, 69 PlacesAfterwards, 75 TransitionsBefore, 74 TransitionsAfterwards, 2252 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 169 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, positive: 28, positive conditional: 0, positive unconditional: 28, 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: 28, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 53, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 123, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 260.2ms, 77 PlacesBefore, 76 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 2428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 79 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 16, positive conditional: 0, positive unconditional: 16, 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: 12, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 118, Positive conditional cache size: 0, Positive unconditional cache size: 118, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 731.6ms, 83 PlacesBefore, 82 PlacesAfterwards, 89 TransitionsBefore, 88 TransitionsAfterwards, 2674 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 103 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 40, positive conditional: 0, positive unconditional: 40, 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: 28, positive: 28, positive conditional: 0, positive unconditional: 28, 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: 28, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 42, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 28, unknown conditional: 0, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 263.0ms, 89 PlacesBefore, 89 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 2538 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 91 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): 134, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 6336.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1613.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1548.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 148 SDtfs, 108 SDslu, 70 SDs, 0 SdLazy, 257 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=533occurred in iteration=8, InterpolantAutomatonStates: 38, 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: 15.8ms SsaConstructionTime, 102.2ms SatisfiabilityAnalysisTime, 328.3ms InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...