/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 12:53:33,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 12:53:33,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 12:53:33,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 12:53:33,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 12:53:33,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 12:53:33,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 12:53:33,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 12:53:33,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 12:53:33,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 12:53:33,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 12:53:33,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 12:53:33,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 12:53:33,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 12:53:33,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 12:53:33,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 12:53:33,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 12:53:33,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 12:53:33,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 12:53:33,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 12:53:33,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 12:53:33,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 12:53:33,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 12:53:33,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 12:53:33,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 12:53:33,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 12:53:33,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 12:53:33,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 12:53:33,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 12:53:33,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 12:53:33,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 12:53:33,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 12:53:33,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 12:53:33,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 12:53:33,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 12:53:33,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 12:53:33,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 12:53:33,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 12:53:33,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 12:53:33,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 12:53:33,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 12:53:33,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-After.epf [2022-01-19 12:53:33,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 12:53:33,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 12:53:33,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 12:53:33,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 12:53:33,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 12:53:33,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 12:53:33,915 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 12:53:33,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 12:53:33,915 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 12:53:33,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 12:53:33,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 12:53:33,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 12:53:33,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 12:53:33,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 12:53:33,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 12:53:33,916 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 12:53:33,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 12:53:33,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 12:53:33,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 12:53:33,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 12:53:33,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 12:53:33,917 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 12:53:33,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 12:53:33,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 12:53:33,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 12:53:33,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 12:53:33,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 12:53:33,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 12:53:33,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 12:53:33,918 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 12:53:33,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 12:53:33,918 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 12:53:33,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 12:53:34,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 12:53:34,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 12:53:34,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 12:53:34,091 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 12:53:34,092 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 12:53:34,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c [2022-01-19 12:53:34,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f4b041c/8aa0afe57b8b43c98f0ab96c42e0bbaa/FLAG4f02a158f [2022-01-19 12:53:34,472 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 12:53:34,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c [2022-01-19 12:53:34,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f4b041c/8aa0afe57b8b43c98f0ab96c42e0bbaa/FLAG4f02a158f [2022-01-19 12:53:34,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f4b041c/8aa0afe57b8b43c98f0ab96c42e0bbaa [2022-01-19 12:53:34,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 12:53:34,904 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 12:53:34,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 12:53:34,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 12:53:34,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 12:53:34,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:53:34" (1/1) ... [2022-01-19 12:53:34,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248d0d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:34, skipping insertion in model container [2022-01-19 12:53:34,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:53:34" (1/1) ... [2022-01-19 12:53:34,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 12:53:34,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 12:53:35,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-01-19 12:53:35,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 12:53:35,073 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 12:53:35,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-01-19 12:53:35,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 12:53:35,099 INFO L208 MainTranslator]: Completed translation [2022-01-19 12:53:35,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35 WrapperNode [2022-01-19 12:53:35,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 12:53:35,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 12:53:35,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 12:53:35,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 12:53:35,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,135 INFO L137 Inliner]: procedures = 25, calls = 39, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 198 [2022-01-19 12:53:35,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 12:53:35,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 12:53:35,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 12:53:35,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 12:53:35,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 12:53:35,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 12:53:35,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 12:53:35,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 12:53:35,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (1/1) ... [2022-01-19 12:53:35,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 12:53:35,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:53:35,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 12:53:35,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 12:53:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 12:53:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 12:53:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 12:53:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 12:53:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 12:53:35,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 12:53:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 12:53:35,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 12:53:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 12:53:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 12:53:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 12:53:35,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 12:53:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 12:53:35,222 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 12:53:35,305 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 12:53:35,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 12:53:35,641 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 12:53:35,648 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 12:53:35,649 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 12:53:35,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:53:35 BoogieIcfgContainer [2022-01-19 12:53:35,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 12:53:35,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 12:53:35,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 12:53:35,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 12:53:35,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 12:53:34" (1/3) ... [2022-01-19 12:53:35,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25540fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:53:35, skipping insertion in model container [2022-01-19 12:53:35,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:53:35" (2/3) ... [2022-01-19 12:53:35,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25540fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:53:35, skipping insertion in model container [2022-01-19 12:53:35,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:53:35" (3/3) ... [2022-01-19 12:53:35,661 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2022-01-19 12:53:35,668 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 12:53:35,668 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 12:53:35,668 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 12:53:35,729 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,730 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,730 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,731 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,731 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,731 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,732 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,733 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,734 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,735 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,736 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,737 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,738 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,739 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,740 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,741 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,742 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,743 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,744 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,745 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,746 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,747 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,748 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,749 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,750 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,751 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,752 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,752 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,753 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,754 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,755 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,756 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,757 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,758 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,759 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,760 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,761 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,762 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,769 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:53:35,775 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 12:53:35,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 12:53:35,810 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 12:53:35,810 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 12:53:35,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 244 places, 258 transitions, 532 flow [2022-01-19 12:53:35,888 INFO L129 PetriNetUnfolder]: 21/256 cut-off events. [2022-01-19 12:53:35,888 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 12:53:35,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 256 events. 21/256 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 346 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 165. Up to 3 conditions per place. [2022-01-19 12:53:35,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 244 places, 258 transitions, 532 flow [2022-01-19 12:53:35,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 247 transitions, 506 flow [2022-01-19 12:53:35,941 INFO L129 PetriNetUnfolder]: 21/246 cut-off events. [2022-01-19 12:53:35,941 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 12:53:35,941 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:35,942 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:35,942 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:35,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:35,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1576786576, now seen corresponding path program 1 times [2022-01-19 12:53:35,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:35,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181961491] [2022-01-19 12:53:35,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:35,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:36,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:36,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181961491] [2022-01-19 12:53:36,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181961491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:36,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:53:36,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 12:53:36,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529097772] [2022-01-19 12:53:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:36,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 12:53:36,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:36,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 12:53:36,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 12:53:36,127 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 258 [2022-01-19 12:53:36,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 247 transitions, 506 flow. Second operand has 2 states, 2 states have (on average 241.5) internal successors, (483), 2 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:36,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:36,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 258 [2022-01-19 12:53:36,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:36,167 INFO L129 PetriNetUnfolder]: 6/232 cut-off events. [2022-01-19 12:53:36,168 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-01-19 12:53:36,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 232 events. 6/232 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 334 event pairs, 0 based on Foata normal form. 17/232 useless extension candidates. Maximal degree in co-relation 157. Up to 5 conditions per place. [2022-01-19 12:53:36,170 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 4 selfloop transitions, 0 changer transitions 7/232 dead transitions. [2022-01-19 12:53:36,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 232 transitions, 484 flow [2022-01-19 12:53:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 12:53:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 12:53:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 495 transitions. [2022-01-19 12:53:36,179 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9593023255813954 [2022-01-19 12:53:36,180 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 495 transitions. [2022-01-19 12:53:36,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 495 transitions. [2022-01-19 12:53:36,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:36,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 495 transitions. [2022-01-19 12:53:36,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 247.5) internal successors, (495), 2 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:36,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:36,191 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:36,192 INFO L186 Difference]: Start difference. First operand has 233 places, 247 transitions, 506 flow. Second operand 2 states and 495 transitions. [2022-01-19 12:53:36,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 232 transitions, 484 flow [2022-01-19 12:53:36,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 232 transitions, 476 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 12:53:36,199 INFO L242 Difference]: Finished difference. Result has 230 places, 225 transitions, 454 flow [2022-01-19 12:53:36,200 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=454, PETRI_PLACES=230, PETRI_TRANSITIONS=225} [2022-01-19 12:53:36,204 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, -3 predicate places. [2022-01-19 12:53:36,204 INFO L470 AbstractCegarLoop]: Abstraction has has 230 places, 225 transitions, 454 flow [2022-01-19 12:53:36,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 241.5) internal successors, (483), 2 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:36,205 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:36,206 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:36,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 12:53:36,210 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:36,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:36,211 INFO L85 PathProgramCache]: Analyzing trace with hash -38155261, now seen corresponding path program 1 times [2022-01-19 12:53:36,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:36,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430874488] [2022-01-19 12:53:36,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:36,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:36,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:36,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430874488] [2022-01-19 12:53:36,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430874488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:36,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:53:36,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 12:53:36,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846495567] [2022-01-19 12:53:36,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:36,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 12:53:36,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:36,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 12:53:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-19 12:53:36,792 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 258 [2022-01-19 12:53:36,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 225 transitions, 454 flow. Second operand has 20 states, 20 states have (on average 171.7) internal successors, (3434), 20 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:36,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:36,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 258 [2022-01-19 12:53:36,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:37,828 INFO L129 PetriNetUnfolder]: 144/1812 cut-off events. [2022-01-19 12:53:37,829 INFO L130 PetriNetUnfolder]: For 28/34 co-relation queries the response was YES. [2022-01-19 12:53:37,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 1812 events. 144/1812 cut-off events. For 28/34 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 13704 event pairs, 57 based on Foata normal form. 1/1645 useless extension candidates. Maximal degree in co-relation 2174. Up to 94 conditions per place. [2022-01-19 12:53:37,837 INFO L132 encePairwiseOnDemand]: 231/258 looper letters, 141 selfloop transitions, 27 changer transitions 12/339 dead transitions. [2022-01-19 12:53:37,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 339 transitions, 1055 flow [2022-01-19 12:53:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 12:53:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 12:53:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4237 transitions. [2022-01-19 12:53:37,845 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6842700258397932 [2022-01-19 12:53:37,845 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4237 transitions. [2022-01-19 12:53:37,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4237 transitions. [2022-01-19 12:53:37,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:37,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4237 transitions. [2022-01-19 12:53:37,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.54166666666666) internal successors, (4237), 24 states have internal predecessors, (4237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:37,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:37,863 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:37,863 INFO L186 Difference]: Start difference. First operand has 230 places, 225 transitions, 454 flow. Second operand 24 states and 4237 transitions. [2022-01-19 12:53:37,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 339 transitions, 1055 flow [2022-01-19 12:53:37,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 339 transitions, 1055 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 12:53:37,868 INFO L242 Difference]: Finished difference. Result has 258 places, 241 transitions, 602 flow [2022-01-19 12:53:37,869 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=602, PETRI_PLACES=258, PETRI_TRANSITIONS=241} [2022-01-19 12:53:37,869 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 25 predicate places. [2022-01-19 12:53:37,869 INFO L470 AbstractCegarLoop]: Abstraction has has 258 places, 241 transitions, 602 flow [2022-01-19 12:53:37,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 171.7) internal successors, (3434), 20 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:37,871 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:37,871 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:37,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 12:53:37,871 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:37,872 INFO L85 PathProgramCache]: Analyzing trace with hash -396505431, now seen corresponding path program 2 times [2022-01-19 12:53:37,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:37,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862105013] [2022-01-19 12:53:37,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:37,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:38,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:38,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862105013] [2022-01-19 12:53:38,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862105013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:38,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:53:38,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 12:53:38,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782949751] [2022-01-19 12:53:38,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:38,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 12:53:38,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:38,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 12:53:38,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-19 12:53:38,267 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 258 [2022-01-19 12:53:38,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 241 transitions, 602 flow. Second operand has 20 states, 20 states have (on average 171.7) internal successors, (3434), 20 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:38,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:38,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 258 [2022-01-19 12:53:38,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:39,143 INFO L129 PetriNetUnfolder]: 140/1844 cut-off events. [2022-01-19 12:53:39,144 INFO L130 PetriNetUnfolder]: For 205/213 co-relation queries the response was YES. [2022-01-19 12:53:39,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2419 conditions, 1844 events. 140/1844 cut-off events. For 205/213 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 13763 event pairs, 54 based on Foata normal form. 5/1688 useless extension candidates. Maximal degree in co-relation 2403. Up to 94 conditions per place. [2022-01-19 12:53:39,154 INFO L132 encePairwiseOnDemand]: 231/258 looper letters, 140 selfloop transitions, 29 changer transitions 12/340 dead transitions. [2022-01-19 12:53:39,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 340 transitions, 1224 flow [2022-01-19 12:53:39,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 12:53:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 12:53:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4236 transitions. [2022-01-19 12:53:39,161 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6841085271317829 [2022-01-19 12:53:39,161 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4236 transitions. [2022-01-19 12:53:39,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4236 transitions. [2022-01-19 12:53:39,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:39,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4236 transitions. [2022-01-19 12:53:39,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.5) internal successors, (4236), 24 states have internal predecessors, (4236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:39,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:39,174 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:39,174 INFO L186 Difference]: Start difference. First operand has 258 places, 241 transitions, 602 flow. Second operand 24 states and 4236 transitions. [2022-01-19 12:53:39,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 340 transitions, 1224 flow [2022-01-19 12:53:39,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 340 transitions, 1190 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-01-19 12:53:39,181 INFO L242 Difference]: Finished difference. Result has 275 places, 246 transitions, 695 flow [2022-01-19 12:53:39,182 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=695, PETRI_PLACES=275, PETRI_TRANSITIONS=246} [2022-01-19 12:53:39,182 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 42 predicate places. [2022-01-19 12:53:39,183 INFO L470 AbstractCegarLoop]: Abstraction has has 275 places, 246 transitions, 695 flow [2022-01-19 12:53:39,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 171.7) internal successors, (3434), 20 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:39,184 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:39,184 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:39,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 12:53:39,184 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:39,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:39,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1149379413, now seen corresponding path program 1 times [2022-01-19 12:53:39,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:39,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21916146] [2022-01-19 12:53:39,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:39,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:39,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:39,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21916146] [2022-01-19 12:53:39,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21916146] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:39,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598120012] [2022-01-19 12:53:39,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:39,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:39,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:53:39,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:53:39,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 12:53:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:39,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-19 12:53:39,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:53:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:39,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:53:40,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:40,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598120012] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:40,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 12:53:40,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15, 14] total 30 [2022-01-19 12:53:40,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637102330] [2022-01-19 12:53:40,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:40,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 12:53:40,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:40,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 12:53:40,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2022-01-19 12:53:40,348 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 258 [2022-01-19 12:53:40,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 246 transitions, 695 flow. Second operand has 14 states, 14 states have (on average 173.14285714285714) internal successors, (2424), 14 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:40,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:40,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 258 [2022-01-19 12:53:40,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:40,904 INFO L129 PetriNetUnfolder]: 191/2490 cut-off events. [2022-01-19 12:53:40,904 INFO L130 PetriNetUnfolder]: For 618/640 co-relation queries the response was YES. [2022-01-19 12:53:40,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3372 conditions, 2490 events. 191/2490 cut-off events. For 618/640 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 20868 event pairs, 83 based on Foata normal form. 3/2268 useless extension candidates. Maximal degree in co-relation 3353. Up to 223 conditions per place. [2022-01-19 12:53:40,919 INFO L132 encePairwiseOnDemand]: 239/258 looper letters, 149 selfloop transitions, 25 changer transitions 8/341 dead transitions. [2022-01-19 12:53:40,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 341 transitions, 1339 flow [2022-01-19 12:53:40,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 12:53:40,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 12:53:40,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3212 transitions. [2022-01-19 12:53:40,925 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6916451335055986 [2022-01-19 12:53:40,925 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3212 transitions. [2022-01-19 12:53:40,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3212 transitions. [2022-01-19 12:53:40,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:40,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3212 transitions. [2022-01-19 12:53:40,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 178.44444444444446) internal successors, (3212), 18 states have internal predecessors, (3212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:40,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:40,936 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:40,936 INFO L186 Difference]: Start difference. First operand has 275 places, 246 transitions, 695 flow. Second operand 18 states and 3212 transitions. [2022-01-19 12:53:40,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 341 transitions, 1339 flow [2022-01-19 12:53:40,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 341 transitions, 1278 flow, removed 9 selfloop flow, removed 20 redundant places. [2022-01-19 12:53:40,945 INFO L242 Difference]: Finished difference. Result has 275 places, 257 transitions, 777 flow [2022-01-19 12:53:40,945 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=777, PETRI_PLACES=275, PETRI_TRANSITIONS=257} [2022-01-19 12:53:40,946 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 42 predicate places. [2022-01-19 12:53:40,946 INFO L470 AbstractCegarLoop]: Abstraction has has 275 places, 257 transitions, 777 flow [2022-01-19 12:53:40,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 173.14285714285714) internal successors, (2424), 14 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:40,947 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:40,948 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:40,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 12:53:41,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:41,163 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:41,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:41,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1377745900, now seen corresponding path program 1 times [2022-01-19 12:53:41,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:41,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175995933] [2022-01-19 12:53:41,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:41,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:41,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:41,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175995933] [2022-01-19 12:53:41,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175995933] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:41,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351901776] [2022-01-19 12:53:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:41,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:41,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:53:41,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:53:41,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 12:53:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:41,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-19 12:53:41,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:53:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:41,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:53:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:42,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351901776] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:42,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 12:53:42,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15, 14] total 30 [2022-01-19 12:53:42,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92260158] [2022-01-19 12:53:42,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:42,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 12:53:42,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:42,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 12:53:42,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=742, Unknown=0, NotChecked=0, Total=870 [2022-01-19 12:53:42,254 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 258 [2022-01-19 12:53:42,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 257 transitions, 777 flow. Second operand has 14 states, 14 states have (on average 173.14285714285714) internal successors, (2424), 14 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:42,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:42,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 258 [2022-01-19 12:53:42,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:42,812 INFO L129 PetriNetUnfolder]: 200/2648 cut-off events. [2022-01-19 12:53:42,812 INFO L130 PetriNetUnfolder]: For 1162/1203 co-relation queries the response was YES. [2022-01-19 12:53:42,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 2648 events. 200/2648 cut-off events. For 1162/1203 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 22660 event pairs, 88 based on Foata normal form. 4/2409 useless extension candidates. Maximal degree in co-relation 3707. Up to 188 conditions per place. [2022-01-19 12:53:42,828 INFO L132 encePairwiseOnDemand]: 236/258 looper letters, 149 selfloop transitions, 27 changer transitions 4/339 dead transitions. [2022-01-19 12:53:42,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 339 transitions, 1397 flow [2022-01-19 12:53:42,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 12:53:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 12:53:42,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3546 transitions. [2022-01-19 12:53:42,833 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6872093023255814 [2022-01-19 12:53:42,833 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3546 transitions. [2022-01-19 12:53:42,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3546 transitions. [2022-01-19 12:53:42,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:42,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3546 transitions. [2022-01-19 12:53:42,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 177.3) internal successors, (3546), 20 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:42,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 258.0) internal successors, (5418), 21 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:42,844 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 258.0) internal successors, (5418), 21 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:42,844 INFO L186 Difference]: Start difference. First operand has 275 places, 257 transitions, 777 flow. Second operand 20 states and 3546 transitions. [2022-01-19 12:53:42,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 339 transitions, 1397 flow [2022-01-19 12:53:42,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 339 transitions, 1336 flow, removed 21 selfloop flow, removed 9 redundant places. [2022-01-19 12:53:42,851 INFO L242 Difference]: Finished difference. Result has 289 places, 263 transitions, 861 flow [2022-01-19 12:53:42,851 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=861, PETRI_PLACES=289, PETRI_TRANSITIONS=263} [2022-01-19 12:53:42,852 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 56 predicate places. [2022-01-19 12:53:42,852 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 263 transitions, 861 flow [2022-01-19 12:53:42,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 173.14285714285714) internal successors, (2424), 14 states have internal predecessors, (2424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:42,852 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:42,852 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:42,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-19 12:53:43,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:43,067 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash -569678055, now seen corresponding path program 2 times [2022-01-19 12:53:43,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:43,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184291203] [2022-01-19 12:53:43,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:43,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:43,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:43,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184291203] [2022-01-19 12:53:43,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184291203] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:43,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803840940] [2022-01-19 12:53:43,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 12:53:43,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:43,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:53:43,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:53:43,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 12:53:43,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 12:53:43,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 12:53:43,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-19 12:53:43,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:53:43,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:53:43,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 12:53:43,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803840940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:43,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 12:53:43,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2022-01-19 12:53:43,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977794396] [2022-01-19 12:53:43,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:43,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 12:53:43,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:43,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 12:53:43,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-19 12:53:43,637 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 258 [2022-01-19 12:53:43,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 263 transitions, 861 flow. Second operand has 12 states, 12 states have (on average 190.66666666666666) internal successors, (2288), 12 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:43,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:43,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 258 [2022-01-19 12:53:43,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:44,238 INFO L129 PetriNetUnfolder]: 218/3074 cut-off events. [2022-01-19 12:53:44,238 INFO L130 PetriNetUnfolder]: For 1651/1706 co-relation queries the response was YES. [2022-01-19 12:53:44,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4419 conditions, 3074 events. 218/3074 cut-off events. For 1651/1706 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 26695 event pairs, 27 based on Foata normal form. 15/2813 useless extension candidates. Maximal degree in co-relation 4394. Up to 241 conditions per place. [2022-01-19 12:53:44,255 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 82 selfloop transitions, 20 changer transitions 12/305 dead transitions. [2022-01-19 12:53:44,255 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 305 transitions, 1280 flow [2022-01-19 12:53:44,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 12:53:44,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 12:53:44,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2705 transitions. [2022-01-19 12:53:44,260 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7488925802879292 [2022-01-19 12:53:44,260 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2705 transitions. [2022-01-19 12:53:44,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2705 transitions. [2022-01-19 12:53:44,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:44,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2705 transitions. [2022-01-19 12:53:44,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.21428571428572) internal successors, (2705), 14 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:44,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 258.0) internal successors, (3870), 15 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:44,269 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 258.0) internal successors, (3870), 15 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:44,269 INFO L186 Difference]: Start difference. First operand has 289 places, 263 transitions, 861 flow. Second operand 14 states and 2705 transitions. [2022-01-19 12:53:44,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 305 transitions, 1280 flow [2022-01-19 12:53:44,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 305 transitions, 1207 flow, removed 28 selfloop flow, removed 9 redundant places. [2022-01-19 12:53:44,276 INFO L242 Difference]: Finished difference. Result has 303 places, 270 transitions, 980 flow [2022-01-19 12:53:44,277 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=980, PETRI_PLACES=303, PETRI_TRANSITIONS=270} [2022-01-19 12:53:44,279 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 70 predicate places. [2022-01-19 12:53:44,279 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 270 transitions, 980 flow [2022-01-19 12:53:44,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 190.66666666666666) internal successors, (2288), 12 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:44,280 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:44,280 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:44,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 12:53:44,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:44,495 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:44,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:44,496 INFO L85 PathProgramCache]: Analyzing trace with hash 63845340, now seen corresponding path program 1 times [2022-01-19 12:53:44,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:44,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418742983] [2022-01-19 12:53:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:44,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:44,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:44,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418742983] [2022-01-19 12:53:44,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418742983] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:44,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195185922] [2022-01-19 12:53:44,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:44,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:44,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:53:44,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:53:44,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 12:53:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:44,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 12:53:44,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:53:45,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:45,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:53:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:45,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195185922] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:45,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 12:53:45,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13, 11] total 23 [2022-01-19 12:53:45,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981397383] [2022-01-19 12:53:45,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:45,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 12:53:45,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:45,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 12:53:45,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-01-19 12:53:45,421 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 258 [2022-01-19 12:53:45,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 270 transitions, 980 flow. Second operand has 11 states, 11 states have (on average 200.36363636363637) internal successors, (2204), 11 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:45,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:45,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 258 [2022-01-19 12:53:45,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:46,123 INFO L129 PetriNetUnfolder]: 375/4060 cut-off events. [2022-01-19 12:53:46,123 INFO L130 PetriNetUnfolder]: For 2235/2238 co-relation queries the response was YES. [2022-01-19 12:53:46,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5954 conditions, 4060 events. 375/4060 cut-off events. For 2235/2238 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 39507 event pairs, 125 based on Foata normal form. 1/3691 useless extension candidates. Maximal degree in co-relation 5918. Up to 202 conditions per place. [2022-01-19 12:53:46,150 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 110 selfloop transitions, 22 changer transitions 0/330 dead transitions. [2022-01-19 12:53:46,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 330 transitions, 1475 flow [2022-01-19 12:53:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 12:53:46,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 12:53:46,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3661 transitions. [2022-01-19 12:53:46,153 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7883290267011197 [2022-01-19 12:53:46,153 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3661 transitions. [2022-01-19 12:53:46,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3661 transitions. [2022-01-19 12:53:46,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:46,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3661 transitions. [2022-01-19 12:53:46,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 203.38888888888889) internal successors, (3661), 18 states have internal predecessors, (3661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:46,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:46,164 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:46,164 INFO L186 Difference]: Start difference. First operand has 303 places, 270 transitions, 980 flow. Second operand 18 states and 3661 transitions. [2022-01-19 12:53:46,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 330 transitions, 1475 flow [2022-01-19 12:53:46,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 330 transitions, 1423 flow, removed 19 selfloop flow, removed 11 redundant places. [2022-01-19 12:53:46,177 INFO L242 Difference]: Finished difference. Result has 301 places, 276 transitions, 999 flow [2022-01-19 12:53:46,177 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=999, PETRI_PLACES=301, PETRI_TRANSITIONS=276} [2022-01-19 12:53:46,178 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 68 predicate places. [2022-01-19 12:53:46,178 INFO L470 AbstractCegarLoop]: Abstraction has has 301 places, 276 transitions, 999 flow [2022-01-19 12:53:46,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 200.36363636363637) internal successors, (2204), 11 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:46,178 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:46,178 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:46,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 12:53:46,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:46,394 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:46,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:46,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1514417794, now seen corresponding path program 1 times [2022-01-19 12:53:46,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:46,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779277030] [2022-01-19 12:53:46,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:46,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:53:46,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:46,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779277030] [2022-01-19 12:53:46,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779277030] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:46,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692483011] [2022-01-19 12:53:46,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:46,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:46,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:53:46,506 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:53:46,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 12:53:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:46,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 12:53:46,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:53:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:53:46,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:53:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:53:47,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692483011] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:47,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-19 12:53:47,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13, 11] total 23 [2022-01-19 12:53:47,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126265770] [2022-01-19 12:53:47,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:47,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 12:53:47,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:47,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 12:53:47,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-01-19 12:53:47,387 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 258 [2022-01-19 12:53:47,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 276 transitions, 999 flow. Second operand has 11 states, 11 states have (on average 200.45454545454547) internal successors, (2205), 11 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:47,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:47,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 258 [2022-01-19 12:53:47,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:47,994 INFO L129 PetriNetUnfolder]: 417/3886 cut-off events. [2022-01-19 12:53:47,994 INFO L130 PetriNetUnfolder]: For 1801/1814 co-relation queries the response was YES. [2022-01-19 12:53:48,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5832 conditions, 3886 events. 417/3886 cut-off events. For 1801/1814 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 36220 event pairs, 125 based on Foata normal form. 8/3603 useless extension candidates. Maximal degree in co-relation 5804. Up to 234 conditions per place. [2022-01-19 12:53:48,017 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 108 selfloop transitions, 22 changer transitions 0/331 dead transitions. [2022-01-19 12:53:48,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 331 transitions, 1473 flow [2022-01-19 12:53:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 12:53:48,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 12:53:48,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3658 transitions. [2022-01-19 12:53:48,020 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7876830318690784 [2022-01-19 12:53:48,020 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3658 transitions. [2022-01-19 12:53:48,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3658 transitions. [2022-01-19 12:53:48,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:48,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3658 transitions. [2022-01-19 12:53:48,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 203.22222222222223) internal successors, (3658), 18 states have internal predecessors, (3658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:48,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:48,028 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:48,028 INFO L186 Difference]: Start difference. First operand has 301 places, 276 transitions, 999 flow. Second operand 18 states and 3658 transitions. [2022-01-19 12:53:48,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 331 transitions, 1473 flow [2022-01-19 12:53:48,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 331 transitions, 1448 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-01-19 12:53:48,036 INFO L242 Difference]: Finished difference. Result has 310 places, 282 transitions, 1043 flow [2022-01-19 12:53:48,036 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=974, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1043, PETRI_PLACES=310, PETRI_TRANSITIONS=282} [2022-01-19 12:53:48,037 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 77 predicate places. [2022-01-19 12:53:48,037 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 282 transitions, 1043 flow [2022-01-19 12:53:48,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 200.45454545454547) internal successors, (2205), 11 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:48,038 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:48,038 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:48,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 12:53:48,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:48,251 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:48,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:48,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1028852358, now seen corresponding path program 1 times [2022-01-19 12:53:48,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:48,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078109492] [2022-01-19 12:53:48,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:48,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:53:48,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078109492] [2022-01-19 12:53:48,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078109492] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794988298] [2022-01-19 12:53:48,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:48,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:48,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:53:48,509 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:53:48,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 12:53:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:48,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-19 12:53:48,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:53:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:53:49,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:53:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:53:50,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794988298] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 12:53:50,514 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 12:53:50,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 43 [2022-01-19 12:53:50,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082806823] [2022-01-19 12:53:50,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 12:53:50,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-19 12:53:50,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:50,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-19 12:53:50,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1551, Unknown=0, NotChecked=0, Total=1806 [2022-01-19 12:53:50,518 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 258 [2022-01-19 12:53:50,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 282 transitions, 1043 flow. Second operand has 43 states, 43 states have (on average 170.13953488372093) internal successors, (7316), 43 states have internal predecessors, (7316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:50,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:50,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 258 [2022-01-19 12:53:50,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:52,333 INFO L129 PetriNetUnfolder]: 401/5678 cut-off events. [2022-01-19 12:53:52,333 INFO L130 PetriNetUnfolder]: For 3621/3705 co-relation queries the response was YES. [2022-01-19 12:53:52,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8683 conditions, 5678 events. 401/5678 cut-off events. For 3621/3705 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 58249 event pairs, 176 based on Foata normal form. 14/5311 useless extension candidates. Maximal degree in co-relation 8653. Up to 580 conditions per place. [2022-01-19 12:53:52,364 INFO L132 encePairwiseOnDemand]: 234/258 looper letters, 223 selfloop transitions, 49 changer transitions 12/447 dead transitions. [2022-01-19 12:53:52,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 447 transitions, 2378 flow [2022-01-19 12:53:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 12:53:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 12:53:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 5732 transitions. [2022-01-19 12:53:52,369 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6732440685929058 [2022-01-19 12:53:52,369 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 5732 transitions. [2022-01-19 12:53:52,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 5732 transitions. [2022-01-19 12:53:52,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:52,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 5732 transitions. [2022-01-19 12:53:52,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 173.6969696969697) internal successors, (5732), 33 states have internal predecessors, (5732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:52,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 258.0) internal successors, (8772), 34 states have internal predecessors, (8772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:52,383 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 258.0) internal successors, (8772), 34 states have internal predecessors, (8772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:52,383 INFO L186 Difference]: Start difference. First operand has 310 places, 282 transitions, 1043 flow. Second operand 33 states and 5732 transitions. [2022-01-19 12:53:52,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 447 transitions, 2378 flow [2022-01-19 12:53:52,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 447 transitions, 2344 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-01-19 12:53:52,395 INFO L242 Difference]: Finished difference. Result has 343 places, 309 transitions, 1389 flow [2022-01-19 12:53:52,395 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=1018, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=1389, PETRI_PLACES=343, PETRI_TRANSITIONS=309} [2022-01-19 12:53:52,396 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 110 predicate places. [2022-01-19 12:53:52,396 INFO L470 AbstractCegarLoop]: Abstraction has has 343 places, 309 transitions, 1389 flow [2022-01-19 12:53:52,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 170.13953488372093) internal successors, (7316), 43 states have internal predecessors, (7316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:52,397 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:52,397 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:52,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 12:53:52,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:52,613 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:52,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1128619235, now seen corresponding path program 1 times [2022-01-19 12:53:52,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:52,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841683480] [2022-01-19 12:53:52,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:52,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:52,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:52,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:52,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841683480] [2022-01-19 12:53:52,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841683480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:52,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:53:52,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 12:53:52,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904195348] [2022-01-19 12:53:52,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:52,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 12:53:52,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:52,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 12:53:52,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 12:53:52,658 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 258 [2022-01-19 12:53:52,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 309 transitions, 1389 flow. Second operand has 7 states, 7 states have (on average 203.42857142857142) internal successors, (1424), 7 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:52,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:52,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 258 [2022-01-19 12:53:52,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:53,210 INFO L129 PetriNetUnfolder]: 614/5152 cut-off events. [2022-01-19 12:53:53,211 INFO L130 PetriNetUnfolder]: For 4083/4122 co-relation queries the response was YES. [2022-01-19 12:53:53,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8712 conditions, 5152 events. 614/5152 cut-off events. For 4083/4122 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 49735 event pairs, 403 based on Foata normal form. 50/4841 useless extension candidates. Maximal degree in co-relation 8671. Up to 1127 conditions per place. [2022-01-19 12:53:53,246 INFO L132 encePairwiseOnDemand]: 247/258 looper letters, 100 selfloop transitions, 14 changer transitions 2/319 dead transitions. [2022-01-19 12:53:53,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 319 transitions, 1634 flow [2022-01-19 12:53:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 12:53:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 12:53:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2065 transitions. [2022-01-19 12:53:53,248 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8003875968992248 [2022-01-19 12:53:53,248 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2065 transitions. [2022-01-19 12:53:53,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2065 transitions. [2022-01-19 12:53:53,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:53,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2065 transitions. [2022-01-19 12:53:53,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 206.5) internal successors, (2065), 10 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 258.0) internal successors, (2838), 11 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,252 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 258.0) internal successors, (2838), 11 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,252 INFO L186 Difference]: Start difference. First operand has 343 places, 309 transitions, 1389 flow. Second operand 10 states and 2065 transitions. [2022-01-19 12:53:53,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 319 transitions, 1634 flow [2022-01-19 12:53:53,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 319 transitions, 1539 flow, removed 29 selfloop flow, removed 12 redundant places. [2022-01-19 12:53:53,265 INFO L242 Difference]: Finished difference. Result has 338 places, 302 transitions, 1264 flow [2022-01-19 12:53:53,265 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1264, PETRI_PLACES=338, PETRI_TRANSITIONS=302} [2022-01-19 12:53:53,265 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 105 predicate places. [2022-01-19 12:53:53,265 INFO L470 AbstractCegarLoop]: Abstraction has has 338 places, 302 transitions, 1264 flow [2022-01-19 12:53:53,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.42857142857142) internal successors, (1424), 7 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,266 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:53,266 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:53,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 12:53:53,266 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:53,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:53,266 INFO L85 PathProgramCache]: Analyzing trace with hash 536896805, now seen corresponding path program 1 times [2022-01-19 12:53:53,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:53,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766766560] [2022-01-19 12:53:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:53,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 12:53:53,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:53,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766766560] [2022-01-19 12:53:53,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766766560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:53,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:53:53,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 12:53:53,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588169926] [2022-01-19 12:53:53,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:53,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 12:53:53,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:53,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 12:53:53,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 12:53:53,310 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 258 [2022-01-19 12:53:53,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 302 transitions, 1264 flow. Second operand has 7 states, 7 states have (on average 203.42857142857142) internal successors, (1424), 7 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:53,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 258 [2022-01-19 12:53:53,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:53,880 INFO L129 PetriNetUnfolder]: 554/6107 cut-off events. [2022-01-19 12:53:53,880 INFO L130 PetriNetUnfolder]: For 3924/3951 co-relation queries the response was YES. [2022-01-19 12:53:53,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9541 conditions, 6107 events. 554/6107 cut-off events. For 3924/3951 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 64205 event pairs, 337 based on Foata normal form. 22/5736 useless extension candidates. Maximal degree in co-relation 9501. Up to 986 conditions per place. [2022-01-19 12:53:53,914 INFO L132 encePairwiseOnDemand]: 247/258 looper letters, 69 selfloop transitions, 10 changer transitions 38/313 dead transitions. [2022-01-19 12:53:53,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 313 transitions, 1519 flow [2022-01-19 12:53:53,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 12:53:53,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 12:53:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2063 transitions. [2022-01-19 12:53:53,916 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7996124031007752 [2022-01-19 12:53:53,916 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2063 transitions. [2022-01-19 12:53:53,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2063 transitions. [2022-01-19 12:53:53,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:53,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2063 transitions. [2022-01-19 12:53:53,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 206.3) internal successors, (2063), 10 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 258.0) internal successors, (2838), 11 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,920 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 258.0) internal successors, (2838), 11 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,920 INFO L186 Difference]: Start difference. First operand has 338 places, 302 transitions, 1264 flow. Second operand 10 states and 2063 transitions. [2022-01-19 12:53:53,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 313 transitions, 1519 flow [2022-01-19 12:53:53,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 313 transitions, 1484 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-01-19 12:53:53,933 INFO L242 Difference]: Finished difference. Result has 340 places, 274 transitions, 1023 flow [2022-01-19 12:53:53,933 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1023, PETRI_PLACES=340, PETRI_TRANSITIONS=274} [2022-01-19 12:53:53,933 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 107 predicate places. [2022-01-19 12:53:53,933 INFO L470 AbstractCegarLoop]: Abstraction has has 340 places, 274 transitions, 1023 flow [2022-01-19 12:53:53,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.42857142857142) internal successors, (1424), 7 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:53,934 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:53,934 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:53,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 12:53:53,934 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:53,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:53,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1698754164, now seen corresponding path program 2 times [2022-01-19 12:53:53,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:53,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881982420] [2022-01-19 12:53:53,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:53,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:54,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:53:54,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:54,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881982420] [2022-01-19 12:53:54,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881982420] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:53:54,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111000216] [2022-01-19 12:53:54,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 12:53:54,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:54,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:53:54,103 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:53:54,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 12:53:54,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 12:53:54,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 12:53:54,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-19 12:53:54,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:53:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-19 12:53:54,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 12:53:54,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111000216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:54,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 12:53:54,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-01-19 12:53:54,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075566392] [2022-01-19 12:53:54,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:54,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 12:53:54,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:54,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 12:53:54,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-01-19 12:53:54,590 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 258 [2022-01-19 12:53:54,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 274 transitions, 1023 flow. Second operand has 12 states, 12 states have (on average 190.83333333333334) internal successors, (2290), 12 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:54,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:54,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 258 [2022-01-19 12:53:54,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:55,296 INFO L129 PetriNetUnfolder]: 289/3868 cut-off events. [2022-01-19 12:53:55,296 INFO L130 PetriNetUnfolder]: For 3015/3114 co-relation queries the response was YES. [2022-01-19 12:53:55,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6130 conditions, 3868 events. 289/3868 cut-off events. For 3015/3114 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 35486 event pairs, 30 based on Foata normal form. 33/3649 useless extension candidates. Maximal degree in co-relation 6089. Up to 338 conditions per place. [2022-01-19 12:53:55,314 INFO L132 encePairwiseOnDemand]: 243/258 looper letters, 79 selfloop transitions, 21 changer transitions 12/316 dead transitions. [2022-01-19 12:53:55,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 316 transitions, 1417 flow [2022-01-19 12:53:55,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 12:53:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 12:53:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2704 transitions. [2022-01-19 12:53:55,316 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7486157253599114 [2022-01-19 12:53:55,316 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2704 transitions. [2022-01-19 12:53:55,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2704 transitions. [2022-01-19 12:53:55,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:55,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2704 transitions. [2022-01-19 12:53:55,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.14285714285714) internal successors, (2704), 14 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:55,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 258.0) internal successors, (3870), 15 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:55,322 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 258.0) internal successors, (3870), 15 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:55,322 INFO L186 Difference]: Start difference. First operand has 340 places, 274 transitions, 1023 flow. Second operand 14 states and 2704 transitions. [2022-01-19 12:53:55,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 316 transitions, 1417 flow [2022-01-19 12:53:55,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 316 transitions, 1296 flow, removed 31 selfloop flow, removed 23 redundant places. [2022-01-19 12:53:55,330 INFO L242 Difference]: Finished difference. Result has 315 places, 277 transitions, 1043 flow [2022-01-19 12:53:55,330 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1043, PETRI_PLACES=315, PETRI_TRANSITIONS=277} [2022-01-19 12:53:55,331 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 82 predicate places. [2022-01-19 12:53:55,331 INFO L470 AbstractCegarLoop]: Abstraction has has 315 places, 277 transitions, 1043 flow [2022-01-19 12:53:55,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 190.83333333333334) internal successors, (2290), 12 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:55,331 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:55,331 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:55,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-19 12:53:55,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:53:55,547 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1492835365, now seen corresponding path program 1 times [2022-01-19 12:53:55,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:55,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197409606] [2022-01-19 12:53:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:55,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:53:55,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:55,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197409606] [2022-01-19 12:53:55,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197409606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:55,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:53:55,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 12:53:55,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219938649] [2022-01-19 12:53:55,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:55,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 12:53:55,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:55,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 12:53:55,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 12:53:55,603 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 258 [2022-01-19 12:53:55,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 277 transitions, 1043 flow. Second operand has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:55,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:55,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 258 [2022-01-19 12:53:55,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:55,979 INFO L129 PetriNetUnfolder]: 428/3817 cut-off events. [2022-01-19 12:53:55,979 INFO L130 PetriNetUnfolder]: For 2800/2821 co-relation queries the response was YES. [2022-01-19 12:53:55,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6419 conditions, 3817 events. 428/3817 cut-off events. For 2800/2821 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 34558 event pairs, 253 based on Foata normal form. 40/3574 useless extension candidates. Maximal degree in co-relation 6380. Up to 724 conditions per place. [2022-01-19 12:53:56,002 INFO L132 encePairwiseOnDemand]: 249/258 looper letters, 76 selfloop transitions, 13 changer transitions 2/286 dead transitions. [2022-01-19 12:53:56,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 286 transitions, 1246 flow [2022-01-19 12:53:56,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 12:53:56,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 12:53:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1655 transitions. [2022-01-19 12:53:56,004 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8018410852713178 [2022-01-19 12:53:56,004 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1655 transitions. [2022-01-19 12:53:56,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1655 transitions. [2022-01-19 12:53:56,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:56,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1655 transitions. [2022-01-19 12:53:56,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 206.875) internal successors, (1655), 8 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 258.0) internal successors, (2322), 9 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,007 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 258.0) internal successors, (2322), 9 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,007 INFO L186 Difference]: Start difference. First operand has 315 places, 277 transitions, 1043 flow. Second operand 8 states and 1655 transitions. [2022-01-19 12:53:56,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 286 transitions, 1246 flow [2022-01-19 12:53:56,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 286 transitions, 1184 flow, removed 23 selfloop flow, removed 13 redundant places. [2022-01-19 12:53:56,017 INFO L242 Difference]: Finished difference. Result has 299 places, 273 transitions, 979 flow [2022-01-19 12:53:56,017 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=979, PETRI_PLACES=299, PETRI_TRANSITIONS=273} [2022-01-19 12:53:56,018 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 66 predicate places. [2022-01-19 12:53:56,018 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 273 transitions, 979 flow [2022-01-19 12:53:56,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,018 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:56,018 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:56,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 12:53:56,018 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:56,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:56,019 INFO L85 PathProgramCache]: Analyzing trace with hash 41757947, now seen corresponding path program 1 times [2022-01-19 12:53:56,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:56,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753817003] [2022-01-19 12:53:56,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:56,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:53:56,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:56,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753817003] [2022-01-19 12:53:56,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753817003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:56,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:53:56,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 12:53:56,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088271000] [2022-01-19 12:53:56,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:56,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 12:53:56,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:56,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 12:53:56,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 12:53:56,060 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 258 [2022-01-19 12:53:56,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 273 transitions, 979 flow. Second operand has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:56,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 258 [2022-01-19 12:53:56,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:53:56,366 INFO L129 PetriNetUnfolder]: 364/3534 cut-off events. [2022-01-19 12:53:56,367 INFO L130 PetriNetUnfolder]: For 2236/2257 co-relation queries the response was YES. [2022-01-19 12:53:56,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5751 conditions, 3534 events. 364/3534 cut-off events. For 2236/2257 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 31453 event pairs, 203 based on Foata normal form. 27/3313 useless extension candidates. Maximal degree in co-relation 5722. Up to 649 conditions per place. [2022-01-19 12:53:56,383 INFO L132 encePairwiseOnDemand]: 249/258 looper letters, 63 selfloop transitions, 10 changer transitions 17/282 dead transitions. [2022-01-19 12:53:56,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 282 transitions, 1190 flow [2022-01-19 12:53:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 12:53:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 12:53:56,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1653 transitions. [2022-01-19 12:53:56,385 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8008720930232558 [2022-01-19 12:53:56,385 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1653 transitions. [2022-01-19 12:53:56,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1653 transitions. [2022-01-19 12:53:56,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:53:56,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1653 transitions. [2022-01-19 12:53:56,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 206.625) internal successors, (1653), 8 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 258.0) internal successors, (2322), 9 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,388 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 258.0) internal successors, (2322), 9 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,388 INFO L186 Difference]: Start difference. First operand has 299 places, 273 transitions, 979 flow. Second operand 8 states and 1653 transitions. [2022-01-19 12:53:56,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 282 transitions, 1190 flow [2022-01-19 12:53:56,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 282 transitions, 1158 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-01-19 12:53:56,396 INFO L242 Difference]: Finished difference. Result has 301 places, 263 transitions, 888 flow [2022-01-19 12:53:56,396 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=888, PETRI_PLACES=301, PETRI_TRANSITIONS=263} [2022-01-19 12:53:56,396 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 68 predicate places. [2022-01-19 12:53:56,396 INFO L470 AbstractCegarLoop]: Abstraction has has 301 places, 263 transitions, 888 flow [2022-01-19 12:53:56,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 204.0) internal successors, (1428), 7 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,397 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:53:56,397 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:53:56,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 12:53:56,397 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:53:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:53:56,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1915691210, now seen corresponding path program 1 times [2022-01-19 12:53:56,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:53:56,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75598192] [2022-01-19 12:53:56,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:53:56,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:53:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:53:56,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:53:56,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:53:56,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75598192] [2022-01-19 12:53:56,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75598192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:53:56,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:53:56,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 12:53:56,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873619441] [2022-01-19 12:53:56,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:53:56,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 12:53:56,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:53:56,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 12:53:56,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2022-01-19 12:53:56,713 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 12:53:56,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 263 transitions, 888 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:53:56,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:53:56,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 12:53:56,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:54:01,454 INFO L129 PetriNetUnfolder]: 13719/45856 cut-off events. [2022-01-19 12:54:01,454 INFO L130 PetriNetUnfolder]: For 14379/14455 co-relation queries the response was YES. [2022-01-19 12:54:01,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78655 conditions, 45856 events. 13719/45856 cut-off events. For 14379/14455 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 607502 event pairs, 5481 based on Foata normal form. 16/42915 useless extension candidates. Maximal degree in co-relation 78626. Up to 8191 conditions per place. [2022-01-19 12:54:01,819 INFO L132 encePairwiseOnDemand]: 228/258 looper letters, 205 selfloop transitions, 56 changer transitions 0/458 dead transitions. [2022-01-19 12:54:01,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 458 transitions, 1881 flow [2022-01-19 12:54:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-19 12:54:01,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-19 12:54:01,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4914 transitions. [2022-01-19 12:54:01,825 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7325581395348837 [2022-01-19 12:54:01,825 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4914 transitions. [2022-01-19 12:54:01,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4914 transitions. [2022-01-19 12:54:01,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:54:01,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4914 transitions. [2022-01-19 12:54:01,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 189.0) internal successors, (4914), 26 states have internal predecessors, (4914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:01,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 258.0) internal successors, (6966), 27 states have internal predecessors, (6966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:01,835 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 258.0) internal successors, (6966), 27 states have internal predecessors, (6966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:01,835 INFO L186 Difference]: Start difference. First operand has 301 places, 263 transitions, 888 flow. Second operand 26 states and 4914 transitions. [2022-01-19 12:54:01,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 458 transitions, 1881 flow [2022-01-19 12:54:01,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 458 transitions, 1799 flow, removed 11 selfloop flow, removed 12 redundant places. [2022-01-19 12:54:01,886 INFO L242 Difference]: Finished difference. Result has 321 places, 307 transitions, 1179 flow [2022-01-19 12:54:01,887 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1179, PETRI_PLACES=321, PETRI_TRANSITIONS=307} [2022-01-19 12:54:01,887 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 88 predicate places. [2022-01-19 12:54:01,887 INFO L470 AbstractCegarLoop]: Abstraction has has 321 places, 307 transitions, 1179 flow [2022-01-19 12:54:01,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:01,888 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:54:01,888 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:54:01,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 12:54:01,888 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:54:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:54:01,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1916777746, now seen corresponding path program 2 times [2022-01-19 12:54:01,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:54:01,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166042609] [2022-01-19 12:54:01,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:54:01,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:54:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:54:02,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:54:02,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:54:02,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166042609] [2022-01-19 12:54:02,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166042609] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:54:02,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016258361] [2022-01-19 12:54:02,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 12:54:02,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:54:02,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:54:02,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:54:02,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-19 12:54:02,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 12:54:02,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 12:54:02,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 48 conjunts are in the unsatisfiable core [2022-01-19 12:54:02,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:54:02,845 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 12:54:02,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 12:54:03,005 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 12:54:03,226 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-19 12:54:03,226 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-01-19 12:54:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:54:03,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:54:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:54:03,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016258361] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 12:54:03,592 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 12:54:03,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 24, 9] total 47 [2022-01-19 12:54:03,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669538924] [2022-01-19 12:54:03,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 12:54:03,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-01-19 12:54:03,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:54:03,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-01-19 12:54:03,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-01-19 12:54:03,596 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 258 [2022-01-19 12:54:03,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 307 transitions, 1179 flow. Second operand has 47 states, 47 states have (on average 165.5744680851064) internal successors, (7782), 47 states have internal predecessors, (7782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:03,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:54:03,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 258 [2022-01-19 12:54:03,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:54:14,415 INFO L129 PetriNetUnfolder]: 27972/79355 cut-off events. [2022-01-19 12:54:14,415 INFO L130 PetriNetUnfolder]: For 49367/49419 co-relation queries the response was YES. [2022-01-19 12:54:14,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171758 conditions, 79355 events. 27972/79355 cut-off events. For 49367/49419 co-relation queries the response was YES. Maximal size of possible extension queue 2032. Compared 1050517 event pairs, 8178 based on Foata normal form. 140/77199 useless extension candidates. Maximal degree in co-relation 171720. Up to 12657 conditions per place. [2022-01-19 12:54:15,298 INFO L132 encePairwiseOnDemand]: 219/258 looper letters, 423 selfloop transitions, 138 changer transitions 0/727 dead transitions. [2022-01-19 12:54:15,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 727 transitions, 4081 flow [2022-01-19 12:54:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 12:54:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 12:54:15,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 7074 transitions. [2022-01-19 12:54:15,302 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6687464549064095 [2022-01-19 12:54:15,303 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 7074 transitions. [2022-01-19 12:54:15,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 7074 transitions. [2022-01-19 12:54:15,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:54:15,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 7074 transitions. [2022-01-19 12:54:15,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 172.53658536585365) internal successors, (7074), 41 states have internal predecessors, (7074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:15,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 258.0) internal successors, (10836), 42 states have internal predecessors, (10836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:15,314 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 258.0) internal successors, (10836), 42 states have internal predecessors, (10836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:15,314 INFO L186 Difference]: Start difference. First operand has 321 places, 307 transitions, 1179 flow. Second operand 41 states and 7074 transitions. [2022-01-19 12:54:15,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 727 transitions, 4081 flow [2022-01-19 12:54:15,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 727 transitions, 4054 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-19 12:54:15,540 INFO L242 Difference]: Finished difference. Result has 379 places, 400 transitions, 2232 flow [2022-01-19 12:54:15,540 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=2232, PETRI_PLACES=379, PETRI_TRANSITIONS=400} [2022-01-19 12:54:15,540 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 146 predicate places. [2022-01-19 12:54:15,541 INFO L470 AbstractCegarLoop]: Abstraction has has 379 places, 400 transitions, 2232 flow [2022-01-19 12:54:15,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 165.5744680851064) internal successors, (7782), 47 states have internal predecessors, (7782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:15,541 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:54:15,542 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:54:15,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-19 12:54:15,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-19 12:54:15,749 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:54:15,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:54:15,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1349825052, now seen corresponding path program 1 times [2022-01-19 12:54:15,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:54:15,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133481978] [2022-01-19 12:54:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:54:15,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:54:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:54:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:54:16,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:54:16,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133481978] [2022-01-19 12:54:16,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133481978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:54:16,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:54:16,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 12:54:16,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885645461] [2022-01-19 12:54:16,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:54:16,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 12:54:16,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:54:16,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 12:54:16,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-01-19 12:54:16,019 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 12:54:16,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 400 transitions, 2232 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:16,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:54:16,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 12:54:16,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:54:32,081 INFO L129 PetriNetUnfolder]: 29946/101703 cut-off events. [2022-01-19 12:54:32,081 INFO L130 PetriNetUnfolder]: For 190040/190148 co-relation queries the response was YES. [2022-01-19 12:54:33,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249504 conditions, 101703 events. 29946/101703 cut-off events. For 190040/190148 co-relation queries the response was YES. Maximal size of possible extension queue 2571. Compared 1515362 event pairs, 15081 based on Foata normal form. 79/97863 useless extension candidates. Maximal degree in co-relation 249440. Up to 23469 conditions per place. [2022-01-19 12:54:33,565 INFO L132 encePairwiseOnDemand]: 229/258 looper letters, 281 selfloop transitions, 92 changer transitions 0/570 dead transitions. [2022-01-19 12:54:33,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 570 transitions, 3981 flow [2022-01-19 12:54:33,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 12:54:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 12:54:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3982 transitions. [2022-01-19 12:54:33,568 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7349575489110373 [2022-01-19 12:54:33,568 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3982 transitions. [2022-01-19 12:54:33,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3982 transitions. [2022-01-19 12:54:33,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:54:33,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3982 transitions. [2022-01-19 12:54:33,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 189.61904761904762) internal successors, (3982), 21 states have internal predecessors, (3982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:33,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 258.0) internal successors, (5676), 22 states have internal predecessors, (5676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:33,575 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 258.0) internal successors, (5676), 22 states have internal predecessors, (5676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:33,575 INFO L186 Difference]: Start difference. First operand has 379 places, 400 transitions, 2232 flow. Second operand 21 states and 3982 transitions. [2022-01-19 12:54:33,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 570 transitions, 3981 flow [2022-01-19 12:54:35,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 570 transitions, 3850 flow, removed 40 selfloop flow, removed 13 redundant places. [2022-01-19 12:54:35,619 INFO L242 Difference]: Finished difference. Result has 395 places, 415 transitions, 2550 flow [2022-01-19 12:54:35,619 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=2103, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2550, PETRI_PLACES=395, PETRI_TRANSITIONS=415} [2022-01-19 12:54:35,619 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 162 predicate places. [2022-01-19 12:54:35,619 INFO L470 AbstractCegarLoop]: Abstraction has has 395 places, 415 transitions, 2550 flow [2022-01-19 12:54:35,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:35,620 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:54:35,620 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:54:35,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 12:54:35,620 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:54:35,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:54:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash 453490286, now seen corresponding path program 2 times [2022-01-19 12:54:35,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:54:35,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734084195] [2022-01-19 12:54:35,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:54:35,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:54:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:54:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:54:35,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:54:35,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734084195] [2022-01-19 12:54:35,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734084195] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:54:35,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49049408] [2022-01-19 12:54:35,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 12:54:35,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:54:35,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:54:35,951 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:54:35,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-19 12:54:36,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 12:54:36,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 12:54:36,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-19 12:54:36,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:54:36,360 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-19 12:54:36,361 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-01-19 12:54:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:54:36,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:54:36,579 INFO L353 Elim1Store]: treesize reduction 56, result has 48.6 percent of original size [2022-01-19 12:54:36,579 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 40 treesize of output 60 [2022-01-19 12:54:36,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:54:36,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49049408] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 12:54:36,699 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 12:54:36,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 9] total 29 [2022-01-19 12:54:36,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174950037] [2022-01-19 12:54:36,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 12:54:36,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-19 12:54:36,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:54:36,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-19 12:54:36,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2022-01-19 12:54:36,703 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 12:54:36,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 415 transitions, 2550 flow. Second operand has 29 states, 29 states have (on average 182.3448275862069) internal successors, (5288), 29 states have internal predecessors, (5288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:36,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:54:36,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 12:54:36,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:54:56,576 INFO L129 PetriNetUnfolder]: 40062/125576 cut-off events. [2022-01-19 12:54:56,576 INFO L130 PetriNetUnfolder]: For 358024/358211 co-relation queries the response was YES. [2022-01-19 12:54:58,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344545 conditions, 125576 events. 40062/125576 cut-off events. For 358024/358211 co-relation queries the response was YES. Maximal size of possible extension queue 3222. Compared 1857392 event pairs, 14572 based on Foata normal form. 295/121530 useless extension candidates. Maximal degree in co-relation 344472. Up to 45757 conditions per place. [2022-01-19 12:54:59,005 INFO L132 encePairwiseOnDemand]: 213/258 looper letters, 461 selfloop transitions, 177 changer transitions 0/835 dead transitions. [2022-01-19 12:54:59,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 835 transitions, 6894 flow [2022-01-19 12:54:59,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-19 12:54:59,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-01-19 12:54:59,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 8274 transitions. [2022-01-19 12:54:59,011 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7288583509513742 [2022-01-19 12:54:59,011 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 8274 transitions. [2022-01-19 12:54:59,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 8274 transitions. [2022-01-19 12:54:59,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:54:59,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 8274 transitions. [2022-01-19 12:54:59,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 188.04545454545453) internal successors, (8274), 44 states have internal predecessors, (8274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:59,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 258.0) internal successors, (11610), 45 states have internal predecessors, (11610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:59,024 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 258.0) internal successors, (11610), 45 states have internal predecessors, (11610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:54:59,024 INFO L186 Difference]: Start difference. First operand has 395 places, 415 transitions, 2550 flow. Second operand 44 states and 8274 transitions. [2022-01-19 12:54:59,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 835 transitions, 6894 flow [2022-01-19 12:55:02,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 835 transitions, 6601 flow, removed 90 selfloop flow, removed 10 redundant places. [2022-01-19 12:55:02,667 INFO L242 Difference]: Finished difference. Result has 451 places, 567 transitions, 4557 flow [2022-01-19 12:55:02,668 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=2391, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=4557, PETRI_PLACES=451, PETRI_TRANSITIONS=567} [2022-01-19 12:55:02,668 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 218 predicate places. [2022-01-19 12:55:02,668 INFO L470 AbstractCegarLoop]: Abstraction has has 451 places, 567 transitions, 4557 flow [2022-01-19 12:55:02,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 182.3448275862069) internal successors, (5288), 29 states have internal predecessors, (5288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:02,669 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:55:02,669 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:55:02,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-19 12:55:02,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-19 12:55:02,886 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:55:02,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:55:02,886 INFO L85 PathProgramCache]: Analyzing trace with hash -450704276, now seen corresponding path program 3 times [2022-01-19 12:55:02,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:55:02,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927581968] [2022-01-19 12:55:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:55:02,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:55:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:55:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:55:03,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:55:03,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927581968] [2022-01-19 12:55:03,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927581968] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 12:55:03,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82144326] [2022-01-19 12:55:03,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 12:55:03,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:55:03,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:55:03,214 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 12:55:03,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-19 12:55:03,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 12:55:03,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 12:55:03,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-19 12:55:03,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 12:55:03,585 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 12:55:03,685 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 12:55:03,717 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 12:55:03,884 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-19 12:55:03,884 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-01-19 12:55:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 12:55:03,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 12:55:04,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:55:04,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82144326] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 12:55:04,287 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 12:55:04,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 9] total 42 [2022-01-19 12:55:04,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400914755] [2022-01-19 12:55:04,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 12:55:04,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-19 12:55:04,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:55:04,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-19 12:55:04,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1545, Unknown=0, NotChecked=0, Total=1722 [2022-01-19 12:55:04,291 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 258 [2022-01-19 12:55:04,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 567 transitions, 4557 flow. Second operand has 42 states, 42 states have (on average 165.76190476190476) internal successors, (6962), 42 states have internal predecessors, (6962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:04,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:55:04,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 258 [2022-01-19 12:55:04,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:55:35,988 INFO L129 PetriNetUnfolder]: 45417/145236 cut-off events. [2022-01-19 12:55:35,988 INFO L130 PetriNetUnfolder]: For 963665/964093 co-relation queries the response was YES. [2022-01-19 12:55:38,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 560497 conditions, 145236 events. 45417/145236 cut-off events. For 963665/964093 co-relation queries the response was YES. Maximal size of possible extension queue 3819. Compared 2208368 event pairs, 19253 based on Foata normal form. 209/140315 useless extension candidates. Maximal degree in co-relation 560401. Up to 30837 conditions per place. [2022-01-19 12:55:39,571 INFO L132 encePairwiseOnDemand]: 215/258 looper letters, 478 selfloop transitions, 316 changer transitions 0/960 dead transitions. [2022-01-19 12:55:39,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 960 transitions, 10723 flow [2022-01-19 12:55:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-19 12:55:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-01-19 12:55:39,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 7830 transitions. [2022-01-19 12:55:39,582 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.659757330637007 [2022-01-19 12:55:39,582 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 7830 transitions. [2022-01-19 12:55:39,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 7830 transitions. [2022-01-19 12:55:39,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:55:39,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 7830 transitions. [2022-01-19 12:55:39,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 170.2173913043478) internal successors, (7830), 46 states have internal predecessors, (7830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:39,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 258.0) internal successors, (12126), 47 states have internal predecessors, (12126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:39,600 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 258.0) internal successors, (12126), 47 states have internal predecessors, (12126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:55:39,600 INFO L186 Difference]: Start difference. First operand has 451 places, 567 transitions, 4557 flow. Second operand 46 states and 7830 transitions. [2022-01-19 12:55:39,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 960 transitions, 10723 flow [2022-01-19 12:56:00,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 960 transitions, 9854 flow, removed 376 selfloop flow, removed 14 redundant places. [2022-01-19 12:56:00,644 INFO L242 Difference]: Finished difference. Result has 507 places, 740 transitions, 7575 flow [2022-01-19 12:56:00,644 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=4107, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=7575, PETRI_PLACES=507, PETRI_TRANSITIONS=740} [2022-01-19 12:56:00,645 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 274 predicate places. [2022-01-19 12:56:00,645 INFO L470 AbstractCegarLoop]: Abstraction has has 507 places, 740 transitions, 7575 flow [2022-01-19 12:56:00,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 165.76190476190476) internal successors, (6962), 42 states have internal predecessors, (6962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:00,646 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:56:00,646 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:56:00,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-19 12:56:00,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 12:56:00,853 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:56:00,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:56:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1647537396, now seen corresponding path program 4 times [2022-01-19 12:56:00,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:56:00,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142736013] [2022-01-19 12:56:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:56:00,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:56:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:56:01,144 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:56:01,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:56:01,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142736013] [2022-01-19 12:56:01,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142736013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:56:01,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:56:01,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 12:56:01,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473437209] [2022-01-19 12:56:01,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:56:01,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 12:56:01,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:56:01,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 12:56:01,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2022-01-19 12:56:01,147 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 12:56:01,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 740 transitions, 7575 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:01,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:56:01,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 12:56:01,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:56:35,951 INFO L129 PetriNetUnfolder]: 46720/148648 cut-off events. [2022-01-19 12:56:35,952 INFO L130 PetriNetUnfolder]: For 1468312/1469138 co-relation queries the response was YES. [2022-01-19 12:56:39,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 642599 conditions, 148648 events. 46720/148648 cut-off events. For 1468312/1469138 co-relation queries the response was YES. Maximal size of possible extension queue 3882. Compared 2263823 event pairs, 20720 based on Foata normal form. 116/143498 useless extension candidates. Maximal degree in co-relation 642478. Up to 33652 conditions per place. [2022-01-19 12:56:40,690 INFO L132 encePairwiseOnDemand]: 227/258 looper letters, 575 selfloop transitions, 225 changer transitions 0/997 dead transitions. [2022-01-19 12:56:40,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 997 transitions, 12337 flow [2022-01-19 12:56:40,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-19 12:56:40,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-01-19 12:56:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4731 transitions. [2022-01-19 12:56:40,693 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7334883720930233 [2022-01-19 12:56:40,693 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 4731 transitions. [2022-01-19 12:56:40,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 4731 transitions. [2022-01-19 12:56:40,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:56:40,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 4731 transitions. [2022-01-19 12:56:40,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 189.24) internal successors, (4731), 25 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:40,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 258.0) internal successors, (6708), 26 states have internal predecessors, (6708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:40,700 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 258.0) internal successors, (6708), 26 states have internal predecessors, (6708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:56:40,700 INFO L186 Difference]: Start difference. First operand has 507 places, 740 transitions, 7575 flow. Second operand 25 states and 4731 transitions. [2022-01-19 12:56:40,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 997 transitions, 12337 flow [2022-01-19 12:57:08,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 997 transitions, 11329 flow, removed 462 selfloop flow, removed 14 redundant places. [2022-01-19 12:57:08,573 INFO L242 Difference]: Finished difference. Result has 528 places, 784 transitions, 8299 flow [2022-01-19 12:57:08,574 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=6969, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8299, PETRI_PLACES=528, PETRI_TRANSITIONS=784} [2022-01-19 12:57:08,574 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 295 predicate places. [2022-01-19 12:57:08,574 INFO L470 AbstractCegarLoop]: Abstraction has has 528 places, 784 transitions, 8299 flow [2022-01-19 12:57:08,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:08,574 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:57:08,574 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:57:08,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 12:57:08,575 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:57:08,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:57:08,575 INFO L85 PathProgramCache]: Analyzing trace with hash -689031504, now seen corresponding path program 5 times [2022-01-19 12:57:08,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:57:08,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131107085] [2022-01-19 12:57:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:57:08,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:57:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:57:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:57:08,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:57:08,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131107085] [2022-01-19 12:57:08,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131107085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:57:08,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:57:08,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 12:57:08,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918952127] [2022-01-19 12:57:08,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:57:08,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 12:57:08,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:57:08,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 12:57:08,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-01-19 12:57:08,900 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 12:57:08,901 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 784 transitions, 8299 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:08,901 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:57:08,901 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 12:57:08,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:57:46,043 INFO L129 PetriNetUnfolder]: 47313/152229 cut-off events. [2022-01-19 12:57:46,043 INFO L130 PetriNetUnfolder]: For 1528133/1528978 co-relation queries the response was YES. [2022-01-19 12:57:50,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 654008 conditions, 152229 events. 47313/152229 cut-off events. For 1528133/1528978 co-relation queries the response was YES. Maximal size of possible extension queue 3951. Compared 2333500 event pairs, 21719 based on Foata normal form. 189/146943 useless extension candidates. Maximal degree in co-relation 653877. Up to 34589 conditions per place. [2022-01-19 12:57:51,224 INFO L132 encePairwiseOnDemand]: 225/258 looper letters, 492 selfloop transitions, 294 changer transitions 0/983 dead transitions. [2022-01-19 12:57:51,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 983 transitions, 12255 flow [2022-01-19 12:57:51,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 12:57:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 12:57:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4357 transitions. [2022-01-19 12:57:51,228 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7342433434445568 [2022-01-19 12:57:51,228 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4357 transitions. [2022-01-19 12:57:51,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4357 transitions. [2022-01-19 12:57:51,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:57:51,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4357 transitions. [2022-01-19 12:57:51,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 189.43478260869566) internal successors, (4357), 23 states have internal predecessors, (4357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:51,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 258.0) internal successors, (6192), 24 states have internal predecessors, (6192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:51,234 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 258.0) internal successors, (6192), 24 states have internal predecessors, (6192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:57:51,234 INFO L186 Difference]: Start difference. First operand has 528 places, 784 transitions, 8299 flow. Second operand 23 states and 4357 transitions. [2022-01-19 12:57:51,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 983 transitions, 12255 flow [2022-01-19 12:58:14,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 983 transitions, 11946 flow, removed 108 selfloop flow, removed 9 redundant places. [2022-01-19 12:58:14,234 INFO L242 Difference]: Finished difference. Result has 552 places, 825 transitions, 9738 flow [2022-01-19 12:58:14,234 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=8024, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=784, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=9738, PETRI_PLACES=552, PETRI_TRANSITIONS=825} [2022-01-19 12:58:14,235 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 319 predicate places. [2022-01-19 12:58:14,235 INFO L470 AbstractCegarLoop]: Abstraction has has 552 places, 825 transitions, 9738 flow [2022-01-19 12:58:14,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:14,235 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:58:14,235 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:58:14,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 12:58:14,236 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:58:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:58:14,236 INFO L85 PathProgramCache]: Analyzing trace with hash -943952656, now seen corresponding path program 6 times [2022-01-19 12:58:14,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:58:14,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977843142] [2022-01-19 12:58:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:58:14,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:58:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:58:14,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:58:14,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:58:14,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977843142] [2022-01-19 12:58:14,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977843142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:58:14,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:58:14,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 12:58:14,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140685067] [2022-01-19 12:58:14,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:58:14,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 12:58:14,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:58:14,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 12:58:14,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-01-19 12:58:14,545 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 12:58:14,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 825 transitions, 9738 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:58:14,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:58:14,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 12:58:14,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:58:55,810 INFO L129 PetriNetUnfolder]: 47517/150586 cut-off events. [2022-01-19 12:58:55,810 INFO L130 PetriNetUnfolder]: For 1600523/1601380 co-relation queries the response was YES. [2022-01-19 12:59:01,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 669182 conditions, 150586 events. 47517/150586 cut-off events. For 1600523/1601380 co-relation queries the response was YES. Maximal size of possible extension queue 3925. Compared 2291082 event pairs, 20923 based on Foata normal form. 189/145484 useless extension candidates. Maximal degree in co-relation 669040. Up to 34678 conditions per place. [2022-01-19 12:59:01,616 INFO L132 encePairwiseOnDemand]: 225/258 looper letters, 533 selfloop transitions, 310 changer transitions 0/1040 dead transitions. [2022-01-19 12:59:01,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 1040 transitions, 13927 flow [2022-01-19 12:59:01,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 12:59:01,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 12:59:01,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4175 transitions. [2022-01-19 12:59:01,619 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.735553206483439 [2022-01-19 12:59:01,619 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4175 transitions. [2022-01-19 12:59:01,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4175 transitions. [2022-01-19 12:59:01,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:01,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4175 transitions. [2022-01-19 12:59:01,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 189.77272727272728) internal successors, (4175), 22 states have internal predecessors, (4175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:01,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:01,626 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:01,626 INFO L186 Difference]: Start difference. First operand has 552 places, 825 transitions, 9738 flow. Second operand 22 states and 4175 transitions. [2022-01-19 12:59:01,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 1040 transitions, 13927 flow [2022-01-19 12:59:25,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 1040 transitions, 13797 flow, removed 36 selfloop flow, removed 11 redundant places. [2022-01-19 12:59:25,667 INFO L242 Difference]: Finished difference. Result has 570 places, 851 transitions, 11016 flow [2022-01-19 12:59:25,667 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=9615, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11016, PETRI_PLACES=570, PETRI_TRANSITIONS=851} [2022-01-19 12:59:25,668 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 337 predicate places. [2022-01-19 12:59:25,668 INFO L470 AbstractCegarLoop]: Abstraction has has 570 places, 851 transitions, 11016 flow [2022-01-19 12:59:25,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:25,668 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:25,668 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 12:59:25,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 12:59:25,668 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 12:59:25,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:25,669 INFO L85 PathProgramCache]: Analyzing trace with hash 893196244, now seen corresponding path program 7 times [2022-01-19 12:59:25,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:25,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430273993] [2022-01-19 12:59:25,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:25,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:25,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 12:59:26,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:26,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430273993] [2022-01-19 12:59:26,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430273993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:26,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:26,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 12:59:26,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557774173] [2022-01-19 12:59:26,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:26,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 12:59:26,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:26,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 12:59:26,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-01-19 12:59:26,003 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 12:59:26,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 851 transitions, 11016 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:26,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:26,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 12:59:26,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:10,641 INFO L129 PetriNetUnfolder]: 47994/153981 cut-off events. [2022-01-19 13:00:10,642 INFO L130 PetriNetUnfolder]: For 1730219/1730999 co-relation queries the response was YES. [2022-01-19 13:00:16,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 693351 conditions, 153981 events. 47994/153981 cut-off events. For 1730219/1730999 co-relation queries the response was YES. Maximal size of possible extension queue 4019. Compared 2360237 event pairs, 21725 based on Foata normal form. 185/148667 useless extension candidates. Maximal degree in co-relation 693202. Up to 34838 conditions per place. [2022-01-19 13:00:17,037 INFO L132 encePairwiseOnDemand]: 225/258 looper letters, 500 selfloop transitions, 352 changer transitions 0/1049 dead transitions. [2022-01-19 13:00:17,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1049 transitions, 15333 flow [2022-01-19 13:00:17,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 13:00:17,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 13:00:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4546 transitions. [2022-01-19 13:00:17,040 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7341731266149871 [2022-01-19 13:00:17,040 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4546 transitions. [2022-01-19 13:00:17,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4546 transitions. [2022-01-19 13:00:17,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:17,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4546 transitions. [2022-01-19 13:00:17,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 189.41666666666666) internal successors, (4546), 24 states have internal predecessors, (4546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:17,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:17,046 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 258.0) internal successors, (6450), 25 states have internal predecessors, (6450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:17,046 INFO L186 Difference]: Start difference. First operand has 570 places, 851 transitions, 11016 flow. Second operand 24 states and 4546 transitions. [2022-01-19 13:00:17,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1049 transitions, 15333 flow [2022-01-19 13:00:42,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 1049 transitions, 14960 flow, removed 10 selfloop flow, removed 13 redundant places. [2022-01-19 13:00:42,100 INFO L242 Difference]: Finished difference. Result has 590 places, 891 transitions, 12603 flow [2022-01-19 13:00:42,100 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=10667, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=312, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=12603, PETRI_PLACES=590, PETRI_TRANSITIONS=891} [2022-01-19 13:00:42,100 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 357 predicate places. [2022-01-19 13:00:42,101 INFO L470 AbstractCegarLoop]: Abstraction has has 590 places, 891 transitions, 12603 flow [2022-01-19 13:00:42,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:42,101 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:42,101 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:00:42,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 13:00:42,101 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:00:42,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:42,102 INFO L85 PathProgramCache]: Analyzing trace with hash -294594322, now seen corresponding path program 8 times [2022-01-19 13:00:42,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:42,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225599216] [2022-01-19 13:00:42,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:42,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 13:00:42,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:42,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225599216] [2022-01-19 13:00:42,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225599216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:42,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:42,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-19 13:00:42,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527424555] [2022-01-19 13:00:42,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:42,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-19 13:00:42,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:42,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-19 13:00:42,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-01-19 13:00:42,430 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 13:00:42,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 891 transitions, 12603 flow. Second operand has 21 states, 21 states have (on average 181.47619047619048) internal successors, (3811), 21 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:42,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:42,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 13:00:42,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:28,533 INFO L129 PetriNetUnfolder]: 48015/152452 cut-off events. [2022-01-19 13:01:28,533 INFO L130 PetriNetUnfolder]: For 1789900/1790715 co-relation queries the response was YES. [2022-01-19 13:01:33,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 701865 conditions, 152452 events. 48015/152452 cut-off events. For 1789900/1790715 co-relation queries the response was YES. Maximal size of possible extension queue 3996. Compared 2325236 event pairs, 21060 based on Foata normal form. 108/147174 useless extension candidates. Maximal degree in co-relation 701706. Up to 35248 conditions per place. [2022-01-19 13:01:34,693 INFO L132 encePairwiseOnDemand]: 226/258 looper letters, 596 selfloop transitions, 271 changer transitions 0/1064 dead transitions. [2022-01-19 13:01:34,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1064 transitions, 16230 flow [2022-01-19 13:01:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:01:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:01:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4162 transitions. [2022-01-19 13:01:34,695 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.733262861169838 [2022-01-19 13:01:34,695 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4162 transitions. [2022-01-19 13:01:34,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4162 transitions. [2022-01-19 13:01:34,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:34,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4162 transitions. [2022-01-19 13:01:34,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 189.1818181818182) internal successors, (4162), 22 states have internal predecessors, (4162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:34,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:34,702 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:34,702 INFO L186 Difference]: Start difference. First operand has 590 places, 891 transitions, 12603 flow. Second operand 22 states and 4162 transitions. [2022-01-19 13:01:34,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 1064 transitions, 16230 flow [2022-01-19 13:01:56,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 1064 transitions, 15824 flow, removed 26 selfloop flow, removed 13 redundant places. [2022-01-19 13:01:56,436 INFO L242 Difference]: Finished difference. Result has 604 places, 902 transitions, 13028 flow [2022-01-19 13:01:56,437 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=12202, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=891, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=13028, PETRI_PLACES=604, PETRI_TRANSITIONS=902} [2022-01-19 13:01:56,437 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 371 predicate places. [2022-01-19 13:01:56,437 INFO L470 AbstractCegarLoop]: Abstraction has has 604 places, 902 transitions, 13028 flow [2022-01-19 13:01:56,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 181.47619047619048) internal successors, (3811), 21 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:56,438 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:56,438 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:01:56,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 13:01:56,438 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:01:56,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:56,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1470087748, now seen corresponding path program 9 times [2022-01-19 13:01:56,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:56,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654739651] [2022-01-19 13:01:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:56,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 13:01:56,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:56,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654739651] [2022-01-19 13:01:56,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654739651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:56,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:56,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 13:01:56,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868342595] [2022-01-19 13:01:56,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:56,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 13:01:56,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:56,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 13:01:56,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-01-19 13:01:56,777 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 13:01:56,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 902 transitions, 13028 flow. Second operand has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:56,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:56,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 13:01:56,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:44,605 INFO L129 PetriNetUnfolder]: 48270/154896 cut-off events. [2022-01-19 13:02:44,606 INFO L130 PetriNetUnfolder]: For 1900853/1901639 co-relation queries the response was YES. [2022-01-19 13:02:50,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713586 conditions, 154896 events. 48270/154896 cut-off events. For 1900853/1901639 co-relation queries the response was YES. Maximal size of possible extension queue 4059. Compared 2376459 event pairs, 21647 based on Foata normal form. 185/149577 useless extension candidates. Maximal degree in co-relation 713422. Up to 35006 conditions per place. [2022-01-19 13:02:51,313 INFO L132 encePairwiseOnDemand]: 225/258 looper letters, 547 selfloop transitions, 341 changer transitions 0/1085 dead transitions. [2022-01-19 13:02:51,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 1085 transitions, 17005 flow [2022-01-19 13:02:51,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 13:02:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 13:02:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4380 transitions. [2022-01-19 13:02:51,316 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7381193124368048 [2022-01-19 13:02:51,316 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4380 transitions. [2022-01-19 13:02:51,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4380 transitions. [2022-01-19 13:02:51,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:51,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4380 transitions. [2022-01-19 13:02:51,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 190.43478260869566) internal successors, (4380), 23 states have internal predecessors, (4380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:51,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 258.0) internal successors, (6192), 24 states have internal predecessors, (6192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:51,323 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 258.0) internal successors, (6192), 24 states have internal predecessors, (6192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:51,323 INFO L186 Difference]: Start difference. First operand has 604 places, 902 transitions, 13028 flow. Second operand 23 states and 4380 transitions. [2022-01-19 13:02:51,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 1085 transitions, 17005 flow [2022-01-19 13:03:12,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 1085 transitions, 16446 flow, removed 31 selfloop flow, removed 15 redundant places. [2022-01-19 13:03:12,649 INFO L242 Difference]: Finished difference. Result has 618 places, 918 transitions, 13921 flow [2022-01-19 13:03:12,650 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=12470, PETRI_DIFFERENCE_MINUEND_PLACES=589, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=324, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=13921, PETRI_PLACES=618, PETRI_TRANSITIONS=918} [2022-01-19 13:03:12,650 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 385 predicate places. [2022-01-19 13:03:12,650 INFO L470 AbstractCegarLoop]: Abstraction has has 618 places, 918 transitions, 13921 flow [2022-01-19 13:03:12,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 181.6) internal successors, (3632), 20 states have internal predecessors, (3632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:12,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:03:12,651 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:03:12,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 13:03:12,651 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:03:12,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:03:12,651 INFO L85 PathProgramCache]: Analyzing trace with hash -606415562, now seen corresponding path program 10 times [2022-01-19 13:03:12,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:03:12,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802957411] [2022-01-19 13:03:12,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:03:12,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:03:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:03:12,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 13:03:12,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:03:12,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802957411] [2022-01-19 13:03:12,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802957411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:03:12,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:03:12,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-19 13:03:12,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487471529] [2022-01-19 13:03:12,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:03:12,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-19 13:03:12,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:03:12,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-19 13:03:12,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-01-19 13:03:12,971 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 13:03:12,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 918 transitions, 13921 flow. Second operand has 21 states, 21 states have (on average 181.47619047619048) internal successors, (3811), 21 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:12,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:03:12,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 13:03:12,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:04:00,308 INFO L129 PetriNetUnfolder]: 47751/152521 cut-off events. [2022-01-19 13:04:00,308 INFO L130 PetriNetUnfolder]: For 1918163/1918925 co-relation queries the response was YES. [2022-01-19 13:04:06,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713069 conditions, 152521 events. 47751/152521 cut-off events. For 1918163/1918925 co-relation queries the response was YES. Maximal size of possible extension queue 3997. Compared 2332422 event pairs, 21102 based on Foata normal form. 110/147284 useless extension candidates. Maximal degree in co-relation 712898. Up to 35191 conditions per place. [2022-01-19 13:04:07,267 INFO L132 encePairwiseOnDemand]: 225/258 looper letters, 567 selfloop transitions, 263 changer transitions 0/1027 dead transitions. [2022-01-19 13:04:07,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 1027 transitions, 16483 flow [2022-01-19 13:04:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:04:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:04:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3403 transitions. [2022-01-19 13:04:07,269 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7327734711455641 [2022-01-19 13:04:07,270 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3403 transitions. [2022-01-19 13:04:07,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3403 transitions. [2022-01-19 13:04:07,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:04:07,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3403 transitions. [2022-01-19 13:04:07,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 189.05555555555554) internal successors, (3403), 18 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:07,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:07,274 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 258.0) internal successors, (4902), 19 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:07,274 INFO L186 Difference]: Start difference. First operand has 618 places, 918 transitions, 13921 flow. Second operand 18 states and 3403 transitions. [2022-01-19 13:04:07,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 1027 transitions, 16483 flow [2022-01-19 13:04:32,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 1027 transitions, 16024 flow, removed 43 selfloop flow, removed 19 redundant places. [2022-01-19 13:04:32,695 INFO L242 Difference]: Finished difference. Result has 618 places, 902 transitions, 13648 flow [2022-01-19 13:04:32,696 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=258, PETRI_DIFFERENCE_MINUEND_FLOW=13024, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13648, PETRI_PLACES=618, PETRI_TRANSITIONS=902} [2022-01-19 13:04:32,696 INFO L334 CegarLoopForPetriNet]: 233 programPoint places, 385 predicate places. [2022-01-19 13:04:32,697 INFO L470 AbstractCegarLoop]: Abstraction has has 618 places, 902 transitions, 13648 flow [2022-01-19 13:04:32,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 181.47619047619048) internal successors, (3811), 21 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:32,697 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:04:32,697 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:04:32,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 13:04:32,697 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:04:32,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:04:32,698 INFO L85 PathProgramCache]: Analyzing trace with hash -897207882, now seen corresponding path program 3 times [2022-01-19 13:04:32,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:04:32,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025247691] [2022-01-19 13:04:32,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:04:32,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:04:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:04:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 13:04:33,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:04:33,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025247691] [2022-01-19 13:04:33,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025247691] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 13:04:33,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738602146] [2022-01-19 13:04:33,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 13:04:33,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 13:04:33,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 13:04:33,040 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 13:04:33,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-19 13:04:33,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-19 13:04:33,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 13:04:33,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-19 13:04:33,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 13:04:33,494 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-19 13:04:33,494 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-01-19 13:04:33,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 13:04:33,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 13:04:33,748 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-01-19 13:04:33,748 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 50 [2022-01-19 13:04:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 13:04:33,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738602146] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 13:04:33,855 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 13:04:33,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 9] total 30 [2022-01-19 13:04:33,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880538743] [2022-01-19 13:04:33,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 13:04:33,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-19 13:04:33,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:04:33,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-19 13:04:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2022-01-19 13:04:33,859 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 258 [2022-01-19 13:04:33,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 902 transitions, 13648 flow. Second operand has 30 states, 30 states have (on average 182.33333333333334) internal successors, (5470), 30 states have internal predecessors, (5470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:33,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:04:33,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 258 [2022-01-19 13:04:33,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-01-19 13:05:07,696 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 13:05:07,697 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 13:05:08,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-19 13:05:08,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-01-19 13:05:11,707 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 13:05:11,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 13:05:11,707 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-01-19 13:05:11,708 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 13:05:11,708 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 13:05:11,710 INFO L732 BasicCegarLoop]: Path program histogram: [10, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:05:11,712 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 13:05:11,712 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 13:05:11,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 01:05:11 BasicIcfg [2022-01-19 13:05:11,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 13:05:11,714 INFO L158 Benchmark]: Toolchain (without parser) took 696810.04ms. Allocated memory was 388.0MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 329.7MB in the beginning and 12.1GB in the end (delta: -11.8GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. [2022-01-19 13:05:11,714 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 388.0MB. Free memory is still 346.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 13:05:11,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.67ms. Allocated memory was 388.0MB in the beginning and 559.9MB in the end (delta: 172.0MB). Free memory was 329.6MB in the beginning and 528.6MB in the end (delta: -199.1MB). Peak memory consumption was 6.4MB. Max. memory is 16.0GB. [2022-01-19 13:05:11,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.28ms. Allocated memory is still 559.9MB. Free memory was 528.6MB in the beginning and 526.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 13:05:11,714 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 559.9MB. Free memory was 526.5MB in the beginning and 523.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 13:05:11,714 INFO L158 Benchmark]: RCFGBuilder took 476.98ms. Allocated memory is still 559.9MB. Free memory was 523.8MB in the beginning and 502.4MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-19 13:05:11,714 INFO L158 Benchmark]: TraceAbstraction took 696062.13ms. Allocated memory was 559.9MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 502.4MB in the beginning and 12.1GB in the end (delta: -11.6GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. [2022-01-19 13:05:11,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 388.0MB. Free memory is still 346.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 195.67ms. Allocated memory was 388.0MB in the beginning and 559.9MB in the end (delta: 172.0MB). Free memory was 329.6MB in the beginning and 528.6MB in the end (delta: -199.1MB). Peak memory consumption was 6.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 34.28ms. Allocated memory is still 559.9MB. Free memory was 528.6MB in the beginning and 526.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 559.9MB. Free memory was 526.5MB in the beginning and 523.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 476.98ms. Allocated memory is still 559.9MB. Free memory was 523.8MB in the beginning and 502.4MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 696062.13ms. Allocated memory was 559.9MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 502.4MB in the beginning and 12.1GB in the end (delta: -11.6GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 332 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 695.9s, OverallIterations: 27, TraceHistogramMax: 2, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 676.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11689 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11689 mSDsluCounter, 15392 SdHoareTripleChecker+Invalid, 6.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 991 IncrementalHoareTripleChecker+Unchecked, 15659 mSDsCounter, 475 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20999 IncrementalHoareTripleChecker+Invalid, 22465 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 475 mSolverCounterUnsat, 1759 mSDtfsCounter, 20999 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4223 GetRequests, 3177 SyntacticMatches, 17 SemanticMatches, 1029 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 10210 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13921occurred in iteration=25, InterpolantAutomatonStates: 556, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 6182 NumberOfCodeBlocks, 6133 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 7585 ConstructedInterpolants, 15 QuantifiedInterpolants, 38057 SizeOfPredicates, 172 NumberOfNonLiveVariables, 3602 ConjunctsInSsa, 283 ConjunctsInUnsatCore, 47 InterpolantComputations, 22 PerfectInterpolantSequences, 81/124 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown