/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-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 06:58:21,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 06:58:21,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 06:58:21,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 06:58:21,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 06:58:21,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 06:58:21,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 06:58:21,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 06:58:21,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 06:58:21,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 06:58:21,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 06:58:21,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 06:58:21,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 06:58:21,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 06:58:21,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 06:58:21,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 06:58:21,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 06:58:21,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 06:58:21,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 06:58:21,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 06:58:21,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 06:58:21,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 06:58:21,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 06:58:21,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 06:58:21,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 06:58:21,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 06:58:21,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 06:58:21,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 06:58:21,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 06:58:21,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 06:58:21,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 06:58:21,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 06:58:21,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 06:58:21,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 06:58:21,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 06:58:21,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 06:58:21,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 06:58:21,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 06:58:21,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 06:58:21,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 06:58:21,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 06:58:21,891 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-Before.epf [2022-01-19 06:58:21,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 06:58:21,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 06:58:21,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 06:58:21,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 06:58:21,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 06:58:21,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 06:58:21,909 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 06:58:21,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 06:58:21,910 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 06:58:21,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 06:58:21,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 06:58:21,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 06:58:21,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 06:58:21,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 06:58:21,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 06:58:21,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 06:58:21,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 06:58:21,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 06:58:21,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 06:58:21,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 06:58:21,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 06:58:21,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 06:58:21,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 06:58:21,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 06:58:21,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 06:58:21,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 06:58:21,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 06:58:21,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 06:58:21,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 06:58:21,913 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 06:58:21,913 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 06:58:21,914 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 06:58:21,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 06:58:22,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 06:58:22,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 06:58:22,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 06:58:22,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 06:58:22,104 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 06:58:22,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-01-19 06:58:22,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cbb3515f/2f134d37423046019d67432f0b07db8f/FLAGcd97341c6 [2022-01-19 06:58:22,513 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 06:58:22,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-01-19 06:58:22,526 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cbb3515f/2f134d37423046019d67432f0b07db8f/FLAGcd97341c6 [2022-01-19 06:58:22,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cbb3515f/2f134d37423046019d67432f0b07db8f [2022-01-19 06:58:22,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 06:58:22,548 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 06:58:22,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 06:58:22,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 06:58:22,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 06:58:22,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573dbff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22, skipping insertion in model container [2022-01-19 06:58:22,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 06:58:22,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 06:58:22,749 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-chromosome-opt-symm.wvr.c[2566,2579] [2022-01-19 06:58:22,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 06:58:22,760 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 06:58:22,777 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-chromosome-opt-symm.wvr.c[2566,2579] [2022-01-19 06:58:22,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 06:58:22,789 INFO L208 MainTranslator]: Completed translation [2022-01-19 06:58:22,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22 WrapperNode [2022-01-19 06:58:22,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 06:58:22,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 06:58:22,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 06:58:22,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 06:58:22,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,819 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2022-01-19 06:58:22,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 06:58:22,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 06:58:22,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 06:58:22,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 06:58:22,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 06:58:22,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 06:58:22,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 06:58:22,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 06:58:22,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (1/1) ... [2022-01-19 06:58:22,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 06:58:22,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:58:22,871 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 06:58:22,883 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 06:58:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 06:58:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 06:58:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 06:58:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 06:58:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 06:58:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 06:58:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 06:58:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 06:58:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 06:58:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 06:58:22,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 06:58:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 06:58:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 06:58:22,901 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 06:58:22,970 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 06:58:22,972 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 06:58:23,237 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 06:58:23,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 06:58:23,247 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-19 06:58:23,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 06:58:23 BoogieIcfgContainer [2022-01-19 06:58:23,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 06:58:23,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 06:58:23,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 06:58:23,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 06:58:23,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 06:58:22" (1/3) ... [2022-01-19 06:58:23,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbdb246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 06:58:23, skipping insertion in model container [2022-01-19 06:58:23,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 06:58:22" (2/3) ... [2022-01-19 06:58:23,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbdb246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 06:58:23, skipping insertion in model container [2022-01-19 06:58:23,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 06:58:23" (3/3) ... [2022-01-19 06:58:23,261 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-01-19 06:58:23,265 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 06:58:23,265 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 06:58:23,265 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 06:58:23,309 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,309 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,310 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,311 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,312 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,313 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,313 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,313 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,313 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,313 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,314 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,314 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,314 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,314 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,314 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,315 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,315 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,315 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,315 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,316 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,316 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,316 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,316 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,316 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,317 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,317 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,317 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,317 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,317 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,318 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,318 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,318 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,318 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,318 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,319 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,320 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,320 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,320 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,320 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,320 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,320 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,321 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,322 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,323 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,324 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,327 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,330 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,331 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,332 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,333 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,336 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,337 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,338 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,338 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,338 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,338 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,338 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,338 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,340 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,341 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,342 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,343 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,343 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,343 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,343 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,343 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,343 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,344 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,346 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,350 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 06:58:23,354 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 06:58:23,392 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 06:58:23,397 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 06:58:23,397 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 06:58:23,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 222 transitions, 460 flow [2022-01-19 06:58:23,477 INFO L129 PetriNetUnfolder]: 21/220 cut-off events. [2022-01-19 06:58:23,478 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 06:58:23,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 21/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 263 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2022-01-19 06:58:23,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 222 transitions, 460 flow [2022-01-19 06:58:23,492 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 211 transitions, 434 flow [2022-01-19 06:58:23,529 INFO L129 PetriNetUnfolder]: 21/210 cut-off events. [2022-01-19 06:58:23,530 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 06:58:23,530 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:23,531 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 06:58:23,539 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:23,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:23,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1416583287, now seen corresponding path program 1 times [2022-01-19 06:58:23,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:23,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436583970] [2022-01-19 06:58:23,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:23,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:23,768 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 06:58:23,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:23,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436583970] [2022-01-19 06:58:23,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436583970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:23,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:23,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 06:58:23,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574778131] [2022-01-19 06:58:23,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:23,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 06:58:23,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:23,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 06:58:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 06:58:23,816 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 222 [2022-01-19 06:58:23,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 211 transitions, 434 flow. Second operand has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 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 06:58:23,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:23,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 222 [2022-01-19 06:58:23,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:23,891 INFO L129 PetriNetUnfolder]: 10/200 cut-off events. [2022-01-19 06:58:23,891 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2022-01-19 06:58:23,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 200 events. 10/200 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 13/196 useless extension candidates. Maximal degree in co-relation 148. Up to 5 conditions per place. [2022-01-19 06:58:23,897 INFO L132 encePairwiseOnDemand]: 211/222 looper letters, 4 selfloop transitions, 0 changer transitions 5/200 dead transitions. [2022-01-19 06:58:23,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 200 transitions, 420 flow [2022-01-19 06:58:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 06:58:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 06:58:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 427 transitions. [2022-01-19 06:58:23,911 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9617117117117117 [2022-01-19 06:58:23,911 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 427 transitions. [2022-01-19 06:58:23,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 427 transitions. [2022-01-19 06:58:23,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:23,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 427 transitions. [2022-01-19 06:58:23,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 213.5) internal successors, (427), 2 states have internal predecessors, (427), 0 states have call successors, (0), 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 06:58:23,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 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 06:58:23,928 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 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 06:58:23,930 INFO L186 Difference]: Start difference. First operand has 197 places, 211 transitions, 434 flow. Second operand 2 states and 427 transitions. [2022-01-19 06:58:23,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 200 transitions, 420 flow [2022-01-19 06:58:23,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 200 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 06:58:23,939 INFO L242 Difference]: Finished difference. Result has 194 places, 195 transitions, 394 flow [2022-01-19 06:58:23,941 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=394, PETRI_PLACES=194, PETRI_TRANSITIONS=195} [2022-01-19 06:58:23,944 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2022-01-19 06:58:23,944 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 195 transitions, 394 flow [2022-01-19 06:58:23,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 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 06:58:23,945 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:23,945 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 06:58:23,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 06:58:23,946 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:23,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:23,947 INFO L85 PathProgramCache]: Analyzing trace with hash -422266269, now seen corresponding path program 1 times [2022-01-19 06:58:23,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:23,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729468344] [2022-01-19 06:58:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:23,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:24,158 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 06:58:24,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:24,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729468344] [2022-01-19 06:58:24,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729468344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:24,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:24,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 06:58:24,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182891708] [2022-01-19 06:58:24,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:24,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 06:58:24,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:24,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 06:58:24,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-19 06:58:24,166 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 222 [2022-01-19 06:58:24,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 195 transitions, 394 flow. Second operand has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 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 06:58:24,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:24,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 222 [2022-01-19 06:58:24,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:24,282 INFO L129 PetriNetUnfolder]: 10/207 cut-off events. [2022-01-19 06:58:24,282 INFO L130 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2022-01-19 06:58:24,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 207 events. 10/207 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 245. Up to 25 conditions per place. [2022-01-19 06:58:24,286 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 28 selfloop transitions, 8 changer transitions 0/203 dead transitions. [2022-01-19 06:58:24,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 203 transitions, 482 flow [2022-01-19 06:58:24,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 06:58:24,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 06:58:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 948 transitions. [2022-01-19 06:58:24,291 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8540540540540541 [2022-01-19 06:58:24,291 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 948 transitions. [2022-01-19 06:58:24,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 948 transitions. [2022-01-19 06:58:24,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:24,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 948 transitions. [2022-01-19 06:58:24,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.6) internal successors, (948), 5 states have internal predecessors, (948), 0 states have call successors, (0), 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 06:58:24,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 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 06:58:24,298 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 0 states have call successors, (0), 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 06:58:24,298 INFO L186 Difference]: Start difference. First operand has 194 places, 195 transitions, 394 flow. Second operand 5 states and 948 transitions. [2022-01-19 06:58:24,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 203 transitions, 482 flow [2022-01-19 06:58:24,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 203 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 06:58:24,308 INFO L242 Difference]: Finished difference. Result has 194 places, 197 transitions, 426 flow [2022-01-19 06:58:24,308 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=194, PETRI_TRANSITIONS=197} [2022-01-19 06:58:24,309 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2022-01-19 06:58:24,309 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 197 transitions, 426 flow [2022-01-19 06:58:24,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 0 states have call successors, (0), 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 06:58:24,310 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:24,310 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 06:58:24,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 06:58:24,310 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:24,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:24,311 INFO L85 PathProgramCache]: Analyzing trace with hash -419875030, now seen corresponding path program 1 times [2022-01-19 06:58:24,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:24,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574383992] [2022-01-19 06:58:24,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:24,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:24,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:58:24,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:24,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574383992] [2022-01-19 06:58:24,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574383992] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:58:24,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645525993] [2022-01-19 06:58:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:24,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:58:24,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:58:24,520 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 06:58:24,549 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 06:58:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:24,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 06:58:24,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:58:25,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:58:25,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:58:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 06:58:25,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645525993] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 06:58:25,294 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 06:58:25,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-01-19 06:58:25,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477291618] [2022-01-19 06:58:25,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 06:58:25,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 06:58:25,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:25,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 06:58:25,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-19 06:58:25,300 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 222 [2022-01-19 06:58:25,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 197 transitions, 426 flow. Second operand has 15 states, 15 states have (on average 183.33333333333334) internal successors, (2750), 15 states have internal predecessors, (2750), 0 states have call successors, (0), 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 06:58:25,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:25,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 222 [2022-01-19 06:58:25,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:25,495 INFO L129 PetriNetUnfolder]: 10/225 cut-off events. [2022-01-19 06:58:25,495 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2022-01-19 06:58:25,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 225 events. 10/225 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 226 event pairs, 0 based on Foata normal form. 4/219 useless extension candidates. Maximal degree in co-relation 295. Up to 19 conditions per place. [2022-01-19 06:58:25,497 INFO L132 encePairwiseOnDemand]: 206/222 looper letters, 30 selfloop transitions, 22 changer transitions 0/217 dead transitions. [2022-01-19 06:58:25,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 217 transitions, 574 flow [2022-01-19 06:58:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 06:58:25,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 06:58:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2036 transitions. [2022-01-19 06:58:25,502 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8337428337428338 [2022-01-19 06:58:25,502 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2036 transitions. [2022-01-19 06:58:25,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2036 transitions. [2022-01-19 06:58:25,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:25,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2036 transitions. [2022-01-19 06:58:25,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 185.0909090909091) internal successors, (2036), 11 states have internal predecessors, (2036), 0 states have call successors, (0), 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 06:58:25,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 222.0) internal successors, (2664), 12 states have internal predecessors, (2664), 0 states have call successors, (0), 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 06:58:25,513 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 222.0) internal successors, (2664), 12 states have internal predecessors, (2664), 0 states have call successors, (0), 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 06:58:25,513 INFO L186 Difference]: Start difference. First operand has 194 places, 197 transitions, 426 flow. Second operand 11 states and 2036 transitions. [2022-01-19 06:58:25,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 217 transitions, 574 flow [2022-01-19 06:58:25,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 217 transitions, 562 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 06:58:25,518 INFO L242 Difference]: Finished difference. Result has 204 places, 209 transitions, 525 flow [2022-01-19 06:58:25,518 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=525, PETRI_PLACES=204, PETRI_TRANSITIONS=209} [2022-01-19 06:58:25,519 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 7 predicate places. [2022-01-19 06:58:25,519 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 209 transitions, 525 flow [2022-01-19 06:58:25,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 183.33333333333334) internal successors, (2750), 15 states have internal predecessors, (2750), 0 states have call successors, (0), 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 06:58:25,521 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:25,521 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:25,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-19 06:58:25,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:58:25,744 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:25,744 INFO L85 PathProgramCache]: Analyzing trace with hash -970353476, now seen corresponding path program 2 times [2022-01-19 06:58:25,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:25,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441057092] [2022-01-19 06:58:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:25,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 06:58:25,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:25,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441057092] [2022-01-19 06:58:25,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441057092] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:58:25,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189036530] [2022-01-19 06:58:25,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 06:58:25,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:58:25,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:58:25,938 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 06:58:25,967 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 06:58:26,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 06:58:26,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 06:58:26,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-19 06:58:26,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:58:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-19 06:58:26,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 06:58:26,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189036530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:26,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 06:58:26,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-19 06:58:26,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001126169] [2022-01-19 06:58:26,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:26,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:26,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:26,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:26,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-01-19 06:58:26,374 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:26,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 209 transitions, 525 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:26,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:26,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:26,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:26,604 INFO L129 PetriNetUnfolder]: 111/654 cut-off events. [2022-01-19 06:58:26,604 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-01-19 06:58:26,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 654 events. 111/654 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3161 event pairs, 7 based on Foata normal form. 0/587 useless extension candidates. Maximal degree in co-relation 883. Up to 70 conditions per place. [2022-01-19 06:58:26,608 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 50 selfloop transitions, 10 changer transitions 1/250 dead transitions. [2022-01-19 06:58:26,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 250 transitions, 734 flow [2022-01-19 06:58:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 06:58:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 06:58:26,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1583 transitions. [2022-01-19 06:58:26,612 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8913288288288288 [2022-01-19 06:58:26,612 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1583 transitions. [2022-01-19 06:58:26,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1583 transitions. [2022-01-19 06:58:26,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:26,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1583 transitions. [2022-01-19 06:58:26,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 197.875) internal successors, (1583), 8 states have internal predecessors, (1583), 0 states have call successors, (0), 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 06:58:26,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 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 06:58:26,620 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 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 06:58:26,620 INFO L186 Difference]: Start difference. First operand has 204 places, 209 transitions, 525 flow. Second operand 8 states and 1583 transitions. [2022-01-19 06:58:26,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 250 transitions, 734 flow [2022-01-19 06:58:26,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 250 transitions, 717 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-01-19 06:58:26,627 INFO L242 Difference]: Finished difference. Result has 213 places, 216 transitions, 571 flow [2022-01-19 06:58:26,628 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=571, PETRI_PLACES=213, PETRI_TRANSITIONS=216} [2022-01-19 06:58:26,629 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 16 predicate places. [2022-01-19 06:58:26,629 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 216 transitions, 571 flow [2022-01-19 06:58:26,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:26,630 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:26,630 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:26,655 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 06:58:26,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-19 06:58:26,844 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:26,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:26,844 INFO L85 PathProgramCache]: Analyzing trace with hash -475898132, now seen corresponding path program 3 times [2022-01-19 06:58:26,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:26,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944721284] [2022-01-19 06:58:26,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:26,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 06:58:26,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:26,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944721284] [2022-01-19 06:58:26,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944721284] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:58:26,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664592795] [2022-01-19 06:58:26,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 06:58:26,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:58:26,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:58:26,970 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 06:58:26,997 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 06:58:27,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-01-19 06:58:27,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 06:58:27,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-19 06:58:27,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:58:27,347 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-01-19 06:58:27,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 06:58:27,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664592795] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:27,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 06:58:27,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-01-19 06:58:27,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084569152] [2022-01-19 06:58:27,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:27,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:27,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:27,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:27,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-01-19 06:58:27,350 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:27,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 216 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:27,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:27,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:27,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:27,745 INFO L129 PetriNetUnfolder]: 428/2270 cut-off events. [2022-01-19 06:58:27,745 INFO L130 PetriNetUnfolder]: For 201/212 co-relation queries the response was YES. [2022-01-19 06:58:27,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3130 conditions, 2270 events. 428/2270 cut-off events. For 201/212 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 18503 event pairs, 83 based on Foata normal form. 1/2026 useless extension candidates. Maximal degree in co-relation 3118. Up to 244 conditions per place. [2022-01-19 06:58:27,761 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 59 selfloop transitions, 12 changer transitions 2/269 dead transitions. [2022-01-19 06:58:27,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 269 transitions, 834 flow [2022-01-19 06:58:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 06:58:27,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 06:58:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1595 transitions. [2022-01-19 06:58:27,765 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8980855855855856 [2022-01-19 06:58:27,765 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1595 transitions. [2022-01-19 06:58:27,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1595 transitions. [2022-01-19 06:58:27,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:27,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1595 transitions. [2022-01-19 06:58:27,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 199.375) internal successors, (1595), 8 states have internal predecessors, (1595), 0 states have call successors, (0), 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 06:58:27,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 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 06:58:27,772 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 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 06:58:27,772 INFO L186 Difference]: Start difference. First operand has 213 places, 216 transitions, 571 flow. Second operand 8 states and 1595 transitions. [2022-01-19 06:58:27,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 269 transitions, 834 flow [2022-01-19 06:58:27,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 269 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 06:58:27,779 INFO L242 Difference]: Finished difference. Result has 223 places, 228 transitions, 651 flow [2022-01-19 06:58:27,779 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=651, PETRI_PLACES=223, PETRI_TRANSITIONS=228} [2022-01-19 06:58:27,780 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 26 predicate places. [2022-01-19 06:58:27,780 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 228 transitions, 651 flow [2022-01-19 06:58:27,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:27,781 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:27,781 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:27,805 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 06:58:28,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:58:28,001 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:28,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash 6486200, now seen corresponding path program 4 times [2022-01-19 06:58:28,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:28,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929347745] [2022-01-19 06:58:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:28,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 06:58:28,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:28,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929347745] [2022-01-19 06:58:28,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929347745] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 06:58:28,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882920959] [2022-01-19 06:58:28,118 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 06:58:28,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:58:28,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 06:58:28,124 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 06:58:28,125 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 06:58:28,212 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 06:58:28,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 06:58:28,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 06:58:28,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 06:58:28,519 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 06:58:28,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 06:58:28,777 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 06:58:28,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882920959] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 06:58:28,778 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 06:58:28,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-01-19 06:58:28,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128677466] [2022-01-19 06:58:28,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 06:58:28,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 06:58:28,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:28,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 06:58:28,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-19 06:58:28,784 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 222 [2022-01-19 06:58:28,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 228 transitions, 651 flow. Second operand has 22 states, 22 states have (on average 183.1818181818182) internal successors, (4030), 22 states have internal predecessors, (4030), 0 states have call successors, (0), 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 06:58:28,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:28,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 222 [2022-01-19 06:58:28,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:29,192 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([615] thread2EXIT-->L90-2: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar2_4) (= v_thread2Thread1of1ForFork1_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem24#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) (= 0 v_thread2Thread1of1ForFork1_thidvar1_4)) InVars {thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_#t~mem24#1=|v_ULTIMATE.start_main_#t~mem24#1_5|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} OutVars{thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_#t~mem24#1=|v_ULTIMATE.start_main_#t~mem24#1_5|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} AuxVars[] AssignedVars[][239], [Black: 222#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0)), Black: 1501#(or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) (= ~isNullA~0 0)) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullA~0 0)))), 3194#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 1089#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 1)), Black: 1095#(and (< |ULTIMATE.start_create_fresh_int_array_~i~2#1| |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 2157#(and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (<= |thread1Thread1of1ForFork0_~i~0#1| 0) (not (= ~isNullB~0 0))), 211#true, Black: 2155#(and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (<= |thread1Thread1of1ForFork0_~i~0#1| 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 1) (not (= ~isNullB~0 0))), Black: 2153#(and (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 0))) (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 0))) (<= |thread1Thread1of1ForFork0_~i~0#1| 0)), Black: 2071#(and (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 0))) (<= |thread1Thread1of1ForFork0_~i~0#1| 0)), 1622#(and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))), 1633#true, 128#L90-2true, Black: 1100#true, Black: 1620#(and (or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0) (= ~isNullA~0 0))) (or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) (= ~isNullA~0 0)) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullA~0 0))))), Black: 1624#(and (<= |thread2Thread1of1ForFork1_~i~1#1| 0) (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))), 1081#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2022-01-19 06:58:29,192 INFO L384 tUnfolder$Statistics]: this new event has 221 ancestors and is cut-off event [2022-01-19 06:58:29,192 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2022-01-19 06:58:29,192 INFO L387 tUnfolder$Statistics]: existing Event has 218 ancestors and is cut-off event [2022-01-19 06:58:29,193 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2022-01-19 06:58:29,200 INFO L129 PetriNetUnfolder]: 124/1135 cut-off events. [2022-01-19 06:58:29,200 INFO L130 PetriNetUnfolder]: For 157/171 co-relation queries the response was YES. [2022-01-19 06:58:29,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1135 events. 124/1135 cut-off events. For 157/171 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7053 event pairs, 8 based on Foata normal form. 5/1051 useless extension candidates. Maximal degree in co-relation 1539. Up to 45 conditions per place. [2022-01-19 06:58:29,209 INFO L132 encePairwiseOnDemand]: 206/222 looper letters, 38 selfloop transitions, 34 changer transitions 0/256 dead transitions. [2022-01-19 06:58:29,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 256 transitions, 907 flow [2022-01-19 06:58:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 06:58:29,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 06:58:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3136 transitions. [2022-01-19 06:58:29,216 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.830948595654478 [2022-01-19 06:58:29,216 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3136 transitions. [2022-01-19 06:58:29,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3136 transitions. [2022-01-19 06:58:29,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:29,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3136 transitions. [2022-01-19 06:58:29,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 184.47058823529412) internal successors, (3136), 17 states have internal predecessors, (3136), 0 states have call successors, (0), 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 06:58:29,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 222.0) internal successors, (3996), 18 states have internal predecessors, (3996), 0 states have call successors, (0), 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 06:58:29,231 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 222.0) internal successors, (3996), 18 states have internal predecessors, (3996), 0 states have call successors, (0), 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 06:58:29,231 INFO L186 Difference]: Start difference. First operand has 223 places, 228 transitions, 651 flow. Second operand 17 states and 3136 transitions. [2022-01-19 06:58:29,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 256 transitions, 907 flow [2022-01-19 06:58:29,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 256 transitions, 907 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 06:58:29,237 INFO L242 Difference]: Finished difference. Result has 242 places, 242 transitions, 826 flow [2022-01-19 06:58:29,238 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=826, PETRI_PLACES=242, PETRI_TRANSITIONS=242} [2022-01-19 06:58:29,239 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 45 predicate places. [2022-01-19 06:58:29,239 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 242 transitions, 826 flow [2022-01-19 06:58:29,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 183.1818181818182) internal successors, (4030), 22 states have internal predecessors, (4030), 0 states have call successors, (0), 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 06:58:29,244 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:29,244 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:29,269 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 06:58:29,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 06:58:29,459 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:29,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1604527506, now seen corresponding path program 5 times [2022-01-19 06:58:29,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:29,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287313468] [2022-01-19 06:58:29,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:29,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:29,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:29,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287313468] [2022-01-19 06:58:29,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287313468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:29,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:29,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:29,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750613460] [2022-01-19 06:58:29,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:29,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:29,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:29,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:29,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:29,589 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:29,590 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 242 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:29,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:29,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:29,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:30,007 INFO L129 PetriNetUnfolder]: 485/2716 cut-off events. [2022-01-19 06:58:30,007 INFO L130 PetriNetUnfolder]: For 725/756 co-relation queries the response was YES. [2022-01-19 06:58:30,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4109 conditions, 2716 events. 485/2716 cut-off events. For 725/756 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 22667 event pairs, 91 based on Foata normal form. 25/2495 useless extension candidates. Maximal degree in co-relation 4088. Up to 300 conditions per place. [2022-01-19 06:58:30,026 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 40 selfloop transitions, 15 changer transitions 0/270 dead transitions. [2022-01-19 06:58:30,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 270 transitions, 1050 flow [2022-01-19 06:58:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:30,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2022-01-19 06:58:30,030 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2022-01-19 06:58:30,030 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2022-01-19 06:58:30,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2022-01-19 06:58:30,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:30,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2022-01-19 06:58:30,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 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 06:58:30,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:30,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:30,035 INFO L186 Difference]: Start difference. First operand has 242 places, 242 transitions, 826 flow. Second operand 6 states and 1188 transitions. [2022-01-19 06:58:30,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 270 transitions, 1050 flow [2022-01-19 06:58:30,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 270 transitions, 1005 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-01-19 06:58:30,045 INFO L242 Difference]: Finished difference. Result has 243 places, 249 transitions, 888 flow [2022-01-19 06:58:30,046 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=888, PETRI_PLACES=243, PETRI_TRANSITIONS=249} [2022-01-19 06:58:30,046 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 46 predicate places. [2022-01-19 06:58:30,046 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 249 transitions, 888 flow [2022-01-19 06:58:30,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:30,047 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:30,047 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:30,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 06:58:30,048 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:30,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1613833440, now seen corresponding path program 6 times [2022-01-19 06:58:30,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:30,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580881329] [2022-01-19 06:58:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:30,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:30,162 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:30,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:30,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580881329] [2022-01-19 06:58:30,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580881329] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:30,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:30,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:30,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099062907] [2022-01-19 06:58:30,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:30,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:30,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:30,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:30,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:30,165 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:30,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 249 transitions, 888 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:30,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:30,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:30,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:30,661 INFO L129 PetriNetUnfolder]: 571/3057 cut-off events. [2022-01-19 06:58:30,661 INFO L130 PetriNetUnfolder]: For 1620/1687 co-relation queries the response was YES. [2022-01-19 06:58:30,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4970 conditions, 3057 events. 571/3057 cut-off events. For 1620/1687 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 27150 event pairs, 89 based on Foata normal form. 37/2806 useless extension candidates. Maximal degree in co-relation 4945. Up to 559 conditions per place. [2022-01-19 06:58:30,682 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 48 selfloop transitions, 17 changer transitions 0/280 dead transitions. [2022-01-19 06:58:30,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 280 transitions, 1168 flow [2022-01-19 06:58:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:30,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:30,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2022-01-19 06:58:30,685 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2022-01-19 06:58:30,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2022-01-19 06:58:30,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2022-01-19 06:58:30,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:30,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2022-01-19 06:58:30,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 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 06:58:30,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:30,701 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:30,701 INFO L186 Difference]: Start difference. First operand has 243 places, 249 transitions, 888 flow. Second operand 6 states and 1191 transitions. [2022-01-19 06:58:30,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 280 transitions, 1168 flow [2022-01-19 06:58:30,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 280 transitions, 1158 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 06:58:30,710 INFO L242 Difference]: Finished difference. Result has 251 places, 257 transitions, 1024 flow [2022-01-19 06:58:30,711 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1024, PETRI_PLACES=251, PETRI_TRANSITIONS=257} [2022-01-19 06:58:30,713 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 54 predicate places. [2022-01-19 06:58:30,713 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 257 transitions, 1024 flow [2022-01-19 06:58:30,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:30,714 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:30,714 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:30,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 06:58:30,715 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:30,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:30,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1842969722, now seen corresponding path program 7 times [2022-01-19 06:58:30,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:30,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908171437] [2022-01-19 06:58:30,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:30,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:30,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:30,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908171437] [2022-01-19 06:58:30,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908171437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:30,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:30,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:30,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071823214] [2022-01-19 06:58:30,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:30,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:30,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:30,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:30,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:30,845 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:30,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 257 transitions, 1024 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:30,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:30,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:30,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:31,356 INFO L129 PetriNetUnfolder]: 641/3468 cut-off events. [2022-01-19 06:58:31,356 INFO L130 PetriNetUnfolder]: For 2839/2934 co-relation queries the response was YES. [2022-01-19 06:58:31,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5866 conditions, 3468 events. 641/3468 cut-off events. For 2839/2934 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 32069 event pairs, 116 based on Foata normal form. 37/3165 useless extension candidates. Maximal degree in co-relation 5837. Up to 598 conditions per place. [2022-01-19 06:58:31,438 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 49 selfloop transitions, 16 changer transitions 0/280 dead transitions. [2022-01-19 06:58:31,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 280 transitions, 1285 flow [2022-01-19 06:58:31,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:31,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1187 transitions. [2022-01-19 06:58:31,441 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8911411411411412 [2022-01-19 06:58:31,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1187 transitions. [2022-01-19 06:58:31,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1187 transitions. [2022-01-19 06:58:31,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:31,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1187 transitions. [2022-01-19 06:58:31,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 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 06:58:31,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:31,447 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:31,447 INFO L186 Difference]: Start difference. First operand has 251 places, 257 transitions, 1024 flow. Second operand 6 states and 1187 transitions. [2022-01-19 06:58:31,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 280 transitions, 1285 flow [2022-01-19 06:58:31,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 280 transitions, 1272 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-01-19 06:58:31,459 INFO L242 Difference]: Finished difference. Result has 259 places, 262 transitions, 1136 flow [2022-01-19 06:58:31,459 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1011, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1136, PETRI_PLACES=259, PETRI_TRANSITIONS=262} [2022-01-19 06:58:31,460 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 62 predicate places. [2022-01-19 06:58:31,460 INFO L470 AbstractCegarLoop]: Abstraction has has 259 places, 262 transitions, 1136 flow [2022-01-19 06:58:31,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:31,460 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:31,461 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:31,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 06:58:31,461 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:31,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:31,461 INFO L85 PathProgramCache]: Analyzing trace with hash -194760392, now seen corresponding path program 8 times [2022-01-19 06:58:31,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:31,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975083815] [2022-01-19 06:58:31,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:31,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:31,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:31,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975083815] [2022-01-19 06:58:31,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975083815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:31,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:31,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:31,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273832162] [2022-01-19 06:58:31,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:31,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:31,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:31,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:31,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:31,549 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:31,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 262 transitions, 1136 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:31,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:31,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:31,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:32,253 INFO L129 PetriNetUnfolder]: 823/4769 cut-off events. [2022-01-19 06:58:32,253 INFO L130 PetriNetUnfolder]: For 3094/3205 co-relation queries the response was YES. [2022-01-19 06:58:32,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7779 conditions, 4769 events. 823/4769 cut-off events. For 3094/3205 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 49245 event pairs, 202 based on Foata normal form. 25/4355 useless extension candidates. Maximal degree in co-relation 7746. Up to 900 conditions per place. [2022-01-19 06:58:32,293 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 46 selfloop transitions, 13 changer transitions 0/289 dead transitions. [2022-01-19 06:58:32,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 289 transitions, 1346 flow [2022-01-19 06:58:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:32,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2022-01-19 06:58:32,296 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2022-01-19 06:58:32,297 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2022-01-19 06:58:32,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2022-01-19 06:58:32,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:32,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2022-01-19 06:58:32,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 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 06:58:32,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:32,302 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:32,302 INFO L186 Difference]: Start difference. First operand has 259 places, 262 transitions, 1136 flow. Second operand 6 states and 1188 transitions. [2022-01-19 06:58:32,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 289 transitions, 1346 flow [2022-01-19 06:58:32,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 289 transitions, 1333 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-01-19 06:58:32,321 INFO L242 Difference]: Finished difference. Result has 268 places, 271 transitions, 1229 flow [2022-01-19 06:58:32,322 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1229, PETRI_PLACES=268, PETRI_TRANSITIONS=271} [2022-01-19 06:58:32,322 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 71 predicate places. [2022-01-19 06:58:32,322 INFO L470 AbstractCegarLoop]: Abstraction has has 268 places, 271 transitions, 1229 flow [2022-01-19 06:58:32,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:32,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:32,323 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:32,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 06:58:32,323 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:32,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:32,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1286052604, now seen corresponding path program 9 times [2022-01-19 06:58:32,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:32,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516170284] [2022-01-19 06:58:32,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:32,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:32,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:32,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516170284] [2022-01-19 06:58:32,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516170284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:32,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:32,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:32,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746226011] [2022-01-19 06:58:32,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:32,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:32,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:32,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:32,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:32,436 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:32,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 271 transitions, 1229 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:32,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:32,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:32,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:33,233 INFO L129 PetriNetUnfolder]: 915/5446 cut-off events. [2022-01-19 06:58:33,234 INFO L130 PetriNetUnfolder]: For 4464/4599 co-relation queries the response was YES. [2022-01-19 06:58:33,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9252 conditions, 5446 events. 915/5446 cut-off events. For 4464/4599 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 58210 event pairs, 201 based on Foata normal form. 30/4980 useless extension candidates. Maximal degree in co-relation 9215. Up to 920 conditions per place. [2022-01-19 06:58:33,381 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 61 selfloop transitions, 19 changer transitions 0/310 dead transitions. [2022-01-19 06:58:33,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 310 transitions, 1555 flow [2022-01-19 06:58:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1199 transitions. [2022-01-19 06:58:33,386 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9001501501501501 [2022-01-19 06:58:33,386 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1199 transitions. [2022-01-19 06:58:33,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1199 transitions. [2022-01-19 06:58:33,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:33,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1199 transitions. [2022-01-19 06:58:33,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 0 states have call successors, (0), 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 06:58:33,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:33,392 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:33,392 INFO L186 Difference]: Start difference. First operand has 268 places, 271 transitions, 1229 flow. Second operand 6 states and 1199 transitions. [2022-01-19 06:58:33,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 310 transitions, 1555 flow [2022-01-19 06:58:33,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 310 transitions, 1543 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-01-19 06:58:33,412 INFO L242 Difference]: Finished difference. Result has 278 places, 282 transitions, 1385 flow [2022-01-19 06:58:33,412 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1223, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1385, PETRI_PLACES=278, PETRI_TRANSITIONS=282} [2022-01-19 06:58:33,413 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 81 predicate places. [2022-01-19 06:58:33,413 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 282 transitions, 1385 flow [2022-01-19 06:58:33,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:33,413 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:33,414 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:33,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 06:58:33,414 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:33,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:33,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1651178468, now seen corresponding path program 10 times [2022-01-19 06:58:33,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:33,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064628482] [2022-01-19 06:58:33,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:33,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:33,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:33,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064628482] [2022-01-19 06:58:33,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064628482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:33,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:33,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:33,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997610973] [2022-01-19 06:58:33,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:33,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:33,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:33,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:33,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:33,522 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:33,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 282 transitions, 1385 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:33,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:33,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:33,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:34,483 INFO L129 PetriNetUnfolder]: 1049/6035 cut-off events. [2022-01-19 06:58:34,483 INFO L130 PetriNetUnfolder]: For 5795/5924 co-relation queries the response was YES. [2022-01-19 06:58:34,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10636 conditions, 6035 events. 1049/6035 cut-off events. For 5795/5924 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 65113 event pairs, 123 based on Foata normal form. 38/5547 useless extension candidates. Maximal degree in co-relation 10594. Up to 953 conditions per place. [2022-01-19 06:58:34,530 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 66 selfloop transitions, 24 changer transitions 0/320 dead transitions. [2022-01-19 06:58:34,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 320 transitions, 1737 flow [2022-01-19 06:58:34,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2022-01-19 06:58:34,533 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9016516516516516 [2022-01-19 06:58:34,533 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1201 transitions. [2022-01-19 06:58:34,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1201 transitions. [2022-01-19 06:58:34,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:34,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1201 transitions. [2022-01-19 06:58:34,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 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 06:58:34,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:34,539 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:34,539 INFO L186 Difference]: Start difference. First operand has 278 places, 282 transitions, 1385 flow. Second operand 6 states and 1201 transitions. [2022-01-19 06:58:34,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 320 transitions, 1737 flow [2022-01-19 06:58:34,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 320 transitions, 1731 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-01-19 06:58:34,566 INFO L242 Difference]: Finished difference. Result has 287 places, 290 transitions, 1548 flow [2022-01-19 06:58:34,567 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1379, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1548, PETRI_PLACES=287, PETRI_TRANSITIONS=290} [2022-01-19 06:58:34,567 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 90 predicate places. [2022-01-19 06:58:34,568 INFO L470 AbstractCegarLoop]: Abstraction has has 287 places, 290 transitions, 1548 flow [2022-01-19 06:58:34,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:34,568 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:34,568 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:34,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 06:58:34,570 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:34,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:34,570 INFO L85 PathProgramCache]: Analyzing trace with hash -197382220, now seen corresponding path program 1 times [2022-01-19 06:58:34,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:34,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423585119] [2022-01-19 06:58:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:34,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:34,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:34,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423585119] [2022-01-19 06:58:34,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423585119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:34,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:34,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:34,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96625060] [2022-01-19 06:58:34,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:34,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:34,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:34,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:34,666 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:34,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 290 transitions, 1548 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:34,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:34,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:34,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:35,457 INFO L129 PetriNetUnfolder]: 1035/6038 cut-off events. [2022-01-19 06:58:35,457 INFO L130 PetriNetUnfolder]: For 7318/7492 co-relation queries the response was YES. [2022-01-19 06:58:35,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11237 conditions, 6038 events. 1035/6038 cut-off events. For 7318/7492 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 65721 event pairs, 150 based on Foata normal form. 39/5552 useless extension candidates. Maximal degree in co-relation 11190. Up to 531 conditions per place. [2022-01-19 06:58:35,497 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 83 selfloop transitions, 20 changer transitions 14/347 dead transitions. [2022-01-19 06:58:35,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 347 transitions, 2144 flow [2022-01-19 06:58:35,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 06:58:35,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 06:58:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1780 transitions. [2022-01-19 06:58:35,501 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8908908908908909 [2022-01-19 06:58:35,501 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1780 transitions. [2022-01-19 06:58:35,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1780 transitions. [2022-01-19 06:58:35,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:35,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1780 transitions. [2022-01-19 06:58:35,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 197.77777777777777) internal successors, (1780), 9 states have internal predecessors, (1780), 0 states have call successors, (0), 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 06:58:35,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 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 06:58:35,509 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 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 06:58:35,509 INFO L186 Difference]: Start difference. First operand has 287 places, 290 transitions, 1548 flow. Second operand 9 states and 1780 transitions. [2022-01-19 06:58:35,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 347 transitions, 2144 flow [2022-01-19 06:58:35,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 347 transitions, 2125 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-01-19 06:58:35,537 INFO L242 Difference]: Finished difference. Result has 299 places, 296 transitions, 1668 flow [2022-01-19 06:58:35,537 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1668, PETRI_PLACES=299, PETRI_TRANSITIONS=296} [2022-01-19 06:58:35,538 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 102 predicate places. [2022-01-19 06:58:35,538 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 296 transitions, 1668 flow [2022-01-19 06:58:35,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:35,539 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:35,539 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:35,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 06:58:35,539 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:35,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1101194472, now seen corresponding path program 2 times [2022-01-19 06:58:35,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:35,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284550095] [2022-01-19 06:58:35,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:35,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:35,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:35,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284550095] [2022-01-19 06:58:35,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284550095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:35,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:35,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:35,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626835870] [2022-01-19 06:58:35,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:35,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:35,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:35,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:35,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:35,627 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:35,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 296 transitions, 1668 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:35,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:35,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:35,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:36,592 INFO L129 PetriNetUnfolder]: 999/5942 cut-off events. [2022-01-19 06:58:36,592 INFO L130 PetriNetUnfolder]: For 7826/8017 co-relation queries the response was YES. [2022-01-19 06:58:36,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11184 conditions, 5942 events. 999/5942 cut-off events. For 7826/8017 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 64369 event pairs, 100 based on Foata normal form. 64/5504 useless extension candidates. Maximal degree in co-relation 11132. Up to 531 conditions per place. [2022-01-19 06:58:36,640 INFO L132 encePairwiseOnDemand]: 210/222 looper letters, 73 selfloop transitions, 41 changer transitions 4/348 dead transitions. [2022-01-19 06:58:36,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 348 transitions, 2161 flow [2022-01-19 06:58:36,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 06:58:36,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 06:58:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1603 transitions. [2022-01-19 06:58:36,645 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9025900900900901 [2022-01-19 06:58:36,645 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1603 transitions. [2022-01-19 06:58:36,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1603 transitions. [2022-01-19 06:58:36,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:36,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1603 transitions. [2022-01-19 06:58:36,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 200.375) internal successors, (1603), 8 states have internal predecessors, (1603), 0 states have call successors, (0), 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 06:58:36,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 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 06:58:36,652 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 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 06:58:36,652 INFO L186 Difference]: Start difference. First operand has 299 places, 296 transitions, 1668 flow. Second operand 8 states and 1603 transitions. [2022-01-19 06:58:36,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 348 transitions, 2161 flow [2022-01-19 06:58:36,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 348 transitions, 2148 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-01-19 06:58:36,690 INFO L242 Difference]: Finished difference. Result has 303 places, 305 transitions, 1884 flow [2022-01-19 06:58:36,690 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1657, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1884, PETRI_PLACES=303, PETRI_TRANSITIONS=305} [2022-01-19 06:58:36,691 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 106 predicate places. [2022-01-19 06:58:36,691 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 305 transitions, 1884 flow [2022-01-19 06:58:36,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:36,691 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:36,692 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:36,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 06:58:36,692 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:36,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -173112068, now seen corresponding path program 3 times [2022-01-19 06:58:36,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:36,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016281440] [2022-01-19 06:58:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:36,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:36,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:36,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016281440] [2022-01-19 06:58:36,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016281440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:36,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:36,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:36,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797126022] [2022-01-19 06:58:36,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:36,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:36,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:36,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:36,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:36,772 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:36,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 305 transitions, 1884 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:36,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:36,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:36,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:37,705 INFO L129 PetriNetUnfolder]: 967/5605 cut-off events. [2022-01-19 06:58:37,706 INFO L130 PetriNetUnfolder]: For 9099/9301 co-relation queries the response was YES. [2022-01-19 06:58:37,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11148 conditions, 5605 events. 967/5605 cut-off events. For 9099/9301 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 59386 event pairs, 141 based on Foata normal form. 66/5192 useless extension candidates. Maximal degree in co-relation 11094. Up to 532 conditions per place. [2022-01-19 06:58:37,742 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 73 selfloop transitions, 34 changer transitions 8/345 dead transitions. [2022-01-19 06:58:37,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 345 transitions, 2274 flow [2022-01-19 06:58:37,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 06:58:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 06:58:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1786 transitions. [2022-01-19 06:58:37,745 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8938938938938938 [2022-01-19 06:58:37,745 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1786 transitions. [2022-01-19 06:58:37,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1786 transitions. [2022-01-19 06:58:37,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:37,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1786 transitions. [2022-01-19 06:58:37,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 198.44444444444446) internal successors, (1786), 9 states have internal predecessors, (1786), 0 states have call successors, (0), 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 06:58:37,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 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 06:58:37,751 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 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 06:58:37,751 INFO L186 Difference]: Start difference. First operand has 303 places, 305 transitions, 1884 flow. Second operand 9 states and 1786 transitions. [2022-01-19 06:58:37,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 345 transitions, 2274 flow [2022-01-19 06:58:37,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 345 transitions, 2231 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-01-19 06:58:37,786 INFO L242 Difference]: Finished difference. Result has 310 places, 305 transitions, 1936 flow [2022-01-19 06:58:37,786 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1843, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1936, PETRI_PLACES=310, PETRI_TRANSITIONS=305} [2022-01-19 06:58:37,787 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 113 predicate places. [2022-01-19 06:58:37,787 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 305 transitions, 1936 flow [2022-01-19 06:58:37,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:37,787 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:37,787 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:37,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 06:58:37,788 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:37,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:37,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1678622644, now seen corresponding path program 1 times [2022-01-19 06:58:37,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:37,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862123959] [2022-01-19 06:58:37,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:37,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:37,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:37,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862123959] [2022-01-19 06:58:37,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862123959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:37,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:37,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:37,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002340249] [2022-01-19 06:58:37,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:37,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:37,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:37,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:37,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:37,865 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:37,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 305 transitions, 1936 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:37,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:37,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:37,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:38,664 INFO L129 PetriNetUnfolder]: 939/4817 cut-off events. [2022-01-19 06:58:38,664 INFO L130 PetriNetUnfolder]: For 7423/7565 co-relation queries the response was YES. [2022-01-19 06:58:38,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9485 conditions, 4817 events. 939/4817 cut-off events. For 7423/7565 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 49108 event pairs, 126 based on Foata normal form. 52/4408 useless extension candidates. Maximal degree in co-relation 9429. Up to 980 conditions per place. [2022-01-19 06:58:38,695 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 54 selfloop transitions, 15 changer transitions 1/326 dead transitions. [2022-01-19 06:58:38,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 326 transitions, 2174 flow [2022-01-19 06:58:38,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:38,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2022-01-19 06:58:38,697 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2022-01-19 06:58:38,697 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2022-01-19 06:58:38,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2022-01-19 06:58:38,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:38,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2022-01-19 06:58:38,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 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 06:58:38,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:38,702 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:38,702 INFO L186 Difference]: Start difference. First operand has 310 places, 305 transitions, 1936 flow. Second operand 6 states and 1188 transitions. [2022-01-19 06:58:38,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 326 transitions, 2174 flow [2022-01-19 06:58:38,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 326 transitions, 2096 flow, removed 4 selfloop flow, removed 8 redundant places. [2022-01-19 06:58:38,734 INFO L242 Difference]: Finished difference. Result has 307 places, 305 transitions, 1896 flow [2022-01-19 06:58:38,735 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1858, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1896, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2022-01-19 06:58:38,735 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 110 predicate places. [2022-01-19 06:58:38,735 INFO L470 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 1896 flow [2022-01-19 06:58:38,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:38,736 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:38,736 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:38,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 06:58:38,736 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:38,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:38,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1415945376, now seen corresponding path program 2 times [2022-01-19 06:58:38,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:38,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517172629] [2022-01-19 06:58:38,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:38,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:38,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:38,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517172629] [2022-01-19 06:58:38,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517172629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:38,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:38,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:38,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586382761] [2022-01-19 06:58:38,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:38,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:38,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:38,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:38,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:38,833 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:38,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 1896 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:38,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:38,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:38,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:39,708 INFO L129 PetriNetUnfolder]: 958/4965 cut-off events. [2022-01-19 06:58:39,708 INFO L130 PetriNetUnfolder]: For 7928/8059 co-relation queries the response was YES. [2022-01-19 06:58:39,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9780 conditions, 4965 events. 958/4965 cut-off events. For 7928/8059 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 51083 event pairs, 149 based on Foata normal form. 38/4521 useless extension candidates. Maximal degree in co-relation 9724. Up to 1039 conditions per place. [2022-01-19 06:58:39,737 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 54 selfloop transitions, 17 changer transitions 1/328 dead transitions. [2022-01-19 06:58:39,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 328 transitions, 2156 flow [2022-01-19 06:58:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:39,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2022-01-19 06:58:39,739 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8933933933933934 [2022-01-19 06:58:39,739 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1190 transitions. [2022-01-19 06:58:39,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1190 transitions. [2022-01-19 06:58:39,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:39,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1190 transitions. [2022-01-19 06:58:39,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 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 06:58:39,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:39,744 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:39,744 INFO L186 Difference]: Start difference. First operand has 307 places, 305 transitions, 1896 flow. Second operand 6 states and 1190 transitions. [2022-01-19 06:58:39,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 328 transitions, 2156 flow [2022-01-19 06:58:39,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 328 transitions, 2120 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-01-19 06:58:39,775 INFO L242 Difference]: Finished difference. Result has 309 places, 308 transitions, 1954 flow [2022-01-19 06:58:39,775 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1864, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1954, PETRI_PLACES=309, PETRI_TRANSITIONS=308} [2022-01-19 06:58:39,776 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 112 predicate places. [2022-01-19 06:58:39,776 INFO L470 AbstractCegarLoop]: Abstraction has has 309 places, 308 transitions, 1954 flow [2022-01-19 06:58:39,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:39,776 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:39,776 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:39,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 06:58:39,777 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:39,777 INFO L85 PathProgramCache]: Analyzing trace with hash -46372404, now seen corresponding path program 3 times [2022-01-19 06:58:39,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:39,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138490012] [2022-01-19 06:58:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:39,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:39,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:39,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138490012] [2022-01-19 06:58:39,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138490012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:39,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:39,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:39,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335337131] [2022-01-19 06:58:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:39,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:39,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:39,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:39,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:39,873 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:39,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 308 transitions, 1954 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:39,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:39,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:39,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:40,586 INFO L129 PetriNetUnfolder]: 954/4900 cut-off events. [2022-01-19 06:58:40,587 INFO L130 PetriNetUnfolder]: For 8614/8746 co-relation queries the response was YES. [2022-01-19 06:58:40,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9775 conditions, 4900 events. 954/4900 cut-off events. For 8614/8746 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 50178 event pairs, 178 based on Foata normal form. 34/4451 useless extension candidates. Maximal degree in co-relation 9717. Up to 1039 conditions per place. [2022-01-19 06:58:40,637 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 54 selfloop transitions, 10 changer transitions 3/323 dead transitions. [2022-01-19 06:58:40,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 323 transitions, 2174 flow [2022-01-19 06:58:40,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:40,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:40,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1180 transitions. [2022-01-19 06:58:40,638 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2022-01-19 06:58:40,638 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1180 transitions. [2022-01-19 06:58:40,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1180 transitions. [2022-01-19 06:58:40,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:40,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1180 transitions. [2022-01-19 06:58:40,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.66666666666666) internal successors, (1180), 6 states have internal predecessors, (1180), 0 states have call successors, (0), 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 06:58:40,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:40,642 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:40,642 INFO L186 Difference]: Start difference. First operand has 309 places, 308 transitions, 1954 flow. Second operand 6 states and 1180 transitions. [2022-01-19 06:58:40,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 323 transitions, 2174 flow [2022-01-19 06:58:40,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 323 transitions, 2159 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-01-19 06:58:40,676 INFO L242 Difference]: Finished difference. Result has 313 places, 308 transitions, 1972 flow [2022-01-19 06:58:40,677 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1972, PETRI_PLACES=313, PETRI_TRANSITIONS=308} [2022-01-19 06:58:40,677 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 116 predicate places. [2022-01-19 06:58:40,677 INFO L470 AbstractCegarLoop]: Abstraction has has 313 places, 308 transitions, 1972 flow [2022-01-19 06:58:40,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:40,678 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:40,678 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:40,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 06:58:40,678 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:40,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:40,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1865148348, now seen corresponding path program 4 times [2022-01-19 06:58:40,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:40,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661744449] [2022-01-19 06:58:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:40,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:40,755 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:40,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:40,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661744449] [2022-01-19 06:58:40,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661744449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:40,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:40,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:40,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452806147] [2022-01-19 06:58:40,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:40,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:40,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:40,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:40,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:40,757 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:40,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 308 transitions, 1972 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:40,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:40,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:40,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:41,418 INFO L129 PetriNetUnfolder]: 943/5004 cut-off events. [2022-01-19 06:58:41,418 INFO L130 PetriNetUnfolder]: For 9173/9303 co-relation queries the response was YES. [2022-01-19 06:58:41,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10004 conditions, 5004 events. 943/5004 cut-off events. For 9173/9303 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 51552 event pairs, 177 based on Foata normal form. 27/4550 useless extension candidates. Maximal degree in co-relation 9944. Up to 648 conditions per place. [2022-01-19 06:58:41,459 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 60 selfloop transitions, 12 changer transitions 3/331 dead transitions. [2022-01-19 06:58:41,459 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 331 transitions, 2272 flow [2022-01-19 06:58:41,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1182 transitions. [2022-01-19 06:58:41,461 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8873873873873874 [2022-01-19 06:58:41,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1182 transitions. [2022-01-19 06:58:41,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1182 transitions. [2022-01-19 06:58:41,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:41,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1182 transitions. [2022-01-19 06:58:41,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 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 06:58:41,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:41,464 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:41,464 INFO L186 Difference]: Start difference. First operand has 313 places, 308 transitions, 1972 flow. Second operand 6 states and 1182 transitions. [2022-01-19 06:58:41,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 331 transitions, 2272 flow [2022-01-19 06:58:41,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 331 transitions, 2238 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-19 06:58:41,500 INFO L242 Difference]: Finished difference. Result has 314 places, 309 transitions, 2001 flow [2022-01-19 06:58:41,500 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1942, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2001, PETRI_PLACES=314, PETRI_TRANSITIONS=309} [2022-01-19 06:58:41,501 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 117 predicate places. [2022-01-19 06:58:41,501 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 309 transitions, 2001 flow [2022-01-19 06:58:41,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:41,501 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:41,501 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:41,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 06:58:41,502 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:41,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:41,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1674637420, now seen corresponding path program 5 times [2022-01-19 06:58:41,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:41,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665451482] [2022-01-19 06:58:41,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:41,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:41,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:41,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665451482] [2022-01-19 06:58:41,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665451482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:41,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:41,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:41,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160290128] [2022-01-19 06:58:41,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:41,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:41,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:41,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:41,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:41,604 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:41,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 309 transitions, 2001 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:41,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:41,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:41,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:42,345 INFO L129 PetriNetUnfolder]: 925/4889 cut-off events. [2022-01-19 06:58:42,346 INFO L130 PetriNetUnfolder]: For 9231/9369 co-relation queries the response was YES. [2022-01-19 06:58:42,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9898 conditions, 4889 events. 925/4889 cut-off events. For 9231/9369 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 50107 event pairs, 111 based on Foata normal form. 45/4477 useless extension candidates. Maximal degree in co-relation 9837. Up to 584 conditions per place. [2022-01-19 06:58:42,397 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 51 selfloop transitions, 24 changer transitions 2/333 dead transitions. [2022-01-19 06:58:42,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 333 transitions, 2287 flow [2022-01-19 06:58:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2022-01-19 06:58:42,399 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2022-01-19 06:58:42,399 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2022-01-19 06:58:42,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2022-01-19 06:58:42,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:42,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2022-01-19 06:58:42,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 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 06:58:42,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:42,403 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:42,403 INFO L186 Difference]: Start difference. First operand has 314 places, 309 transitions, 2001 flow. Second operand 6 states and 1191 transitions. [2022-01-19 06:58:42,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 333 transitions, 2287 flow [2022-01-19 06:58:42,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 333 transitions, 2260 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-01-19 06:58:42,439 INFO L242 Difference]: Finished difference. Result has 316 places, 312 transitions, 2090 flow [2022-01-19 06:58:42,440 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1977, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2090, PETRI_PLACES=316, PETRI_TRANSITIONS=312} [2022-01-19 06:58:42,440 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 119 predicate places. [2022-01-19 06:58:42,440 INFO L470 AbstractCegarLoop]: Abstraction has has 316 places, 312 transitions, 2090 flow [2022-01-19 06:58:42,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:42,441 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:42,441 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:42,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 06:58:42,441 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:42,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:42,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1209724388, now seen corresponding path program 6 times [2022-01-19 06:58:42,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:42,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647346625] [2022-01-19 06:58:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:42,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:42,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:42,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647346625] [2022-01-19 06:58:42,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647346625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:42,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:42,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:42,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789841399] [2022-01-19 06:58:42,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:42,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:42,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:42,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:42,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:42,523 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:42,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 312 transitions, 2090 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:42,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:42,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:42,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:43,285 INFO L129 PetriNetUnfolder]: 920/4764 cut-off events. [2022-01-19 06:58:43,285 INFO L130 PetriNetUnfolder]: For 9840/9979 co-relation queries the response was YES. [2022-01-19 06:58:43,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9842 conditions, 4764 events. 920/4764 cut-off events. For 9840/9979 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 48375 event pairs, 132 based on Foata normal form. 39/4346 useless extension candidates. Maximal degree in co-relation 9780. Up to 602 conditions per place. [2022-01-19 06:58:43,329 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 49 selfloop transitions, 20 changer transitions 4/329 dead transitions. [2022-01-19 06:58:43,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 329 transitions, 2331 flow [2022-01-19 06:58:43,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 06:58:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 06:58:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1183 transitions. [2022-01-19 06:58:43,331 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8881381381381381 [2022-01-19 06:58:43,331 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1183 transitions. [2022-01-19 06:58:43,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1183 transitions. [2022-01-19 06:58:43,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:43,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1183 transitions. [2022-01-19 06:58:43,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 0 states have call successors, (0), 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 06:58:43,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:43,335 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 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 06:58:43,335 INFO L186 Difference]: Start difference. First operand has 316 places, 312 transitions, 2090 flow. Second operand 6 states and 1183 transitions. [2022-01-19 06:58:43,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 329 transitions, 2331 flow [2022-01-19 06:58:43,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 329 transitions, 2305 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-01-19 06:58:43,376 INFO L242 Difference]: Finished difference. Result has 319 places, 311 transitions, 2089 flow [2022-01-19 06:58:43,376 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2064, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2089, PETRI_PLACES=319, PETRI_TRANSITIONS=311} [2022-01-19 06:58:43,376 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 122 predicate places. [2022-01-19 06:58:43,377 INFO L470 AbstractCegarLoop]: Abstraction has has 319 places, 311 transitions, 2089 flow [2022-01-19 06:58:43,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:43,377 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:43,377 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:43,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 06:58:43,377 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:43,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1932845862, now seen corresponding path program 4 times [2022-01-19 06:58:43,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:43,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909767877] [2022-01-19 06:58:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:43,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:43,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:43,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909767877] [2022-01-19 06:58:43,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909767877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:43,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:43,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:43,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688546031] [2022-01-19 06:58:43,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:43,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:43,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:43,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:43,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:43,462 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:43,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 311 transitions, 2089 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:43,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:43,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:43,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:44,318 INFO L129 PetriNetUnfolder]: 929/5304 cut-off events. [2022-01-19 06:58:44,318 INFO L130 PetriNetUnfolder]: For 11432/11638 co-relation queries the response was YES. [2022-01-19 06:58:44,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10999 conditions, 5304 events. 929/5304 cut-off events. For 11432/11638 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 55075 event pairs, 171 based on Foata normal form. 53/4904 useless extension candidates. Maximal degree in co-relation 10936. Up to 830 conditions per place. [2022-01-19 06:58:44,368 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 88 selfloop transitions, 24 changer transitions 7/355 dead transitions. [2022-01-19 06:58:44,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 355 transitions, 2533 flow [2022-01-19 06:58:44,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 06:58:44,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 06:58:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1591 transitions. [2022-01-19 06:58:44,370 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8958333333333334 [2022-01-19 06:58:44,371 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1591 transitions. [2022-01-19 06:58:44,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1591 transitions. [2022-01-19 06:58:44,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:44,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1591 transitions. [2022-01-19 06:58:44,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.875) internal successors, (1591), 8 states have internal predecessors, (1591), 0 states have call successors, (0), 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 06:58:44,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 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 06:58:44,375 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 0 states have call successors, (0), 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 06:58:44,375 INFO L186 Difference]: Start difference. First operand has 319 places, 311 transitions, 2089 flow. Second operand 8 states and 1591 transitions. [2022-01-19 06:58:44,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 355 transitions, 2533 flow [2022-01-19 06:58:44,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 355 transitions, 2460 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-01-19 06:58:44,426 INFO L242 Difference]: Finished difference. Result has 318 places, 312 transitions, 2080 flow [2022-01-19 06:58:44,426 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2016, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2080, PETRI_PLACES=318, PETRI_TRANSITIONS=312} [2022-01-19 06:58:44,427 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 121 predicate places. [2022-01-19 06:58:44,427 INFO L470 AbstractCegarLoop]: Abstraction has has 318 places, 312 transitions, 2080 flow [2022-01-19 06:58:44,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:44,427 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:44,427 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:44,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 06:58:44,428 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:44,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:44,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1389225224, now seen corresponding path program 5 times [2022-01-19 06:58:44,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:44,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576936391] [2022-01-19 06:58:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:44,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:44,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:44,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576936391] [2022-01-19 06:58:44,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576936391] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:44,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:44,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:44,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239428469] [2022-01-19 06:58:44,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:44,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:44,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:44,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:44,528 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:44,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 312 transitions, 2080 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:44,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:44,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:44,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:45,409 INFO L129 PetriNetUnfolder]: 912/5132 cut-off events. [2022-01-19 06:58:45,409 INFO L130 PetriNetUnfolder]: For 10219/10413 co-relation queries the response was YES. [2022-01-19 06:58:45,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10651 conditions, 5132 events. 912/5132 cut-off events. For 10219/10413 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 52773 event pairs, 165 based on Foata normal form. 57/4753 useless extension candidates. Maximal degree in co-relation 10590. Up to 830 conditions per place. [2022-01-19 06:58:45,459 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 85 selfloop transitions, 30 changer transitions 4/355 dead transitions. [2022-01-19 06:58:45,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 355 transitions, 2483 flow [2022-01-19 06:58:45,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 06:58:45,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 06:58:45,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1409 transitions. [2022-01-19 06:58:45,461 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9066924066924067 [2022-01-19 06:58:45,461 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1409 transitions. [2022-01-19 06:58:45,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1409 transitions. [2022-01-19 06:58:45,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:45,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1409 transitions. [2022-01-19 06:58:45,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 201.28571428571428) internal successors, (1409), 7 states have internal predecessors, (1409), 0 states have call successors, (0), 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 06:58:45,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 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 06:58:45,465 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 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 06:58:45,466 INFO L186 Difference]: Start difference. First operand has 318 places, 312 transitions, 2080 flow. Second operand 7 states and 1409 transitions. [2022-01-19 06:58:45,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 355 transitions, 2483 flow [2022-01-19 06:58:45,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 355 transitions, 2434 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-01-19 06:58:45,513 INFO L242 Difference]: Finished difference. Result has 320 places, 313 transitions, 2128 flow [2022-01-19 06:58:45,513 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2034, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2128, PETRI_PLACES=320, PETRI_TRANSITIONS=313} [2022-01-19 06:58:45,514 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 123 predicate places. [2022-01-19 06:58:45,514 INFO L470 AbstractCegarLoop]: Abstraction has has 320 places, 313 transitions, 2128 flow [2022-01-19 06:58:45,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:45,514 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:45,514 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:45,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 06:58:45,515 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:45,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:45,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1434153486, now seen corresponding path program 6 times [2022-01-19 06:58:45,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:45,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919231641] [2022-01-19 06:58:45,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:45,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:45,600 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:45,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:45,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919231641] [2022-01-19 06:58:45,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919231641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:45,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:45,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 06:58:45,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872317932] [2022-01-19 06:58:45,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:45,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 06:58:45,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:45,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 06:58:45,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-19 06:58:45,603 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2022-01-19 06:58:45,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 313 transitions, 2128 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:45,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:45,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2022-01-19 06:58:45,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:46,448 INFO L129 PetriNetUnfolder]: 895/4948 cut-off events. [2022-01-19 06:58:46,449 INFO L130 PetriNetUnfolder]: For 10616/10829 co-relation queries the response was YES. [2022-01-19 06:58:46,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10454 conditions, 4948 events. 895/4948 cut-off events. For 10616/10829 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 50393 event pairs, 105 based on Foata normal form. 64/4604 useless extension candidates. Maximal degree in co-relation 10393. Up to 699 conditions per place. [2022-01-19 06:58:46,497 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 82 selfloop transitions, 32 changer transitions 5/355 dead transitions. [2022-01-19 06:58:46,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 355 transitions, 2538 flow [2022-01-19 06:58:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 06:58:46,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 06:58:46,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1405 transitions. [2022-01-19 06:58:46,499 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9041184041184042 [2022-01-19 06:58:46,499 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1405 transitions. [2022-01-19 06:58:46,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1405 transitions. [2022-01-19 06:58:46,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:46,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1405 transitions. [2022-01-19 06:58:46,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 200.71428571428572) internal successors, (1405), 7 states have internal predecessors, (1405), 0 states have call successors, (0), 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 06:58:46,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 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 06:58:46,503 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 0 states have call successors, (0), 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 06:58:46,503 INFO L186 Difference]: Start difference. First operand has 320 places, 313 transitions, 2128 flow. Second operand 7 states and 1405 transitions. [2022-01-19 06:58:46,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 355 transitions, 2538 flow [2022-01-19 06:58:46,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 355 transitions, 2490 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-01-19 06:58:46,540 INFO L242 Difference]: Finished difference. Result has 322 places, 313 transitions, 2146 flow [2022-01-19 06:58:46,541 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2082, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2146, PETRI_PLACES=322, PETRI_TRANSITIONS=313} [2022-01-19 06:58:46,541 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 125 predicate places. [2022-01-19 06:58:46,541 INFO L470 AbstractCegarLoop]: Abstraction has has 322 places, 313 transitions, 2146 flow [2022-01-19 06:58:46,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 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 06:58:46,541 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:46,542 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:46,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 06:58:46,542 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1117174808, now seen corresponding path program 1 times [2022-01-19 06:58:46,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:46,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851516675] [2022-01-19 06:58:46,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:46,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:46,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:46,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851516675] [2022-01-19 06:58:46,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851516675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:46,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:46,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 06:58:46,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230169328] [2022-01-19 06:58:46,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:46,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 06:58:46,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:46,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 06:58:46,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 06:58:46,925 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 06:58:46,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 313 transitions, 2146 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:58:46,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:46,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 06:58:46,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:58:53,897 INFO L129 PetriNetUnfolder]: 14321/38058 cut-off events. [2022-01-19 06:58:53,897 INFO L130 PetriNetUnfolder]: For 73054/73211 co-relation queries the response was YES. [2022-01-19 06:58:54,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82178 conditions, 38058 events. 14321/38058 cut-off events. For 73054/73211 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 461520 event pairs, 4887 based on Foata normal form. 32/34552 useless extension candidates. Maximal degree in co-relation 82117. Up to 7008 conditions per place. [2022-01-19 06:58:54,304 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 279 selfloop transitions, 93 changer transitions 0/574 dead transitions. [2022-01-19 06:58:54,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 574 transitions, 4556 flow [2022-01-19 06:58:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 06:58:54,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 06:58:54,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3740 transitions. [2022-01-19 06:58:54,308 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7324716020368194 [2022-01-19 06:58:54,308 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3740 transitions. [2022-01-19 06:58:54,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3740 transitions. [2022-01-19 06:58:54,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:58:54,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3740 transitions. [2022-01-19 06:58:54,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.6086956521739) internal successors, (3740), 23 states have internal predecessors, (3740), 0 states have call successors, (0), 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 06:58:54,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 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 06:58:54,317 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 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 06:58:54,317 INFO L186 Difference]: Start difference. First operand has 322 places, 313 transitions, 2146 flow. Second operand 23 states and 3740 transitions. [2022-01-19 06:58:54,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 574 transitions, 4556 flow [2022-01-19 06:58:54,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 574 transitions, 4415 flow, removed 2 selfloop flow, removed 9 redundant places. [2022-01-19 06:58:54,477 INFO L242 Difference]: Finished difference. Result has 347 places, 371 transitions, 3041 flow [2022-01-19 06:58:54,478 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3041, PETRI_PLACES=347, PETRI_TRANSITIONS=371} [2022-01-19 06:58:54,478 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 150 predicate places. [2022-01-19 06:58:54,478 INFO L470 AbstractCegarLoop]: Abstraction has has 347 places, 371 transitions, 3041 flow [2022-01-19 06:58:54,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:58:54,479 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:58:54,479 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:54,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 06:58:54,480 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:58:54,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:58:54,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1292242656, now seen corresponding path program 2 times [2022-01-19 06:58:54,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:58:54,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66797882] [2022-01-19 06:58:54,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:58:54,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:58:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:58:54,778 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:58:54,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:58:54,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66797882] [2022-01-19 06:58:54,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66797882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:58:54,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:58:54,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 06:58:54,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866092266] [2022-01-19 06:58:54,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:58:54,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 06:58:54,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:58:54,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 06:58:54,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-19 06:58:54,782 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 06:58:54,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 371 transitions, 3041 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:58:54,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:58:54,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 06:58:54,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:59:03,991 INFO L129 PetriNetUnfolder]: 18545/49308 cut-off events. [2022-01-19 06:59:03,991 INFO L130 PetriNetUnfolder]: For 134337/134608 co-relation queries the response was YES. [2022-01-19 06:59:04,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127265 conditions, 49308 events. 18545/49308 cut-off events. For 134337/134608 co-relation queries the response was YES. Maximal size of possible extension queue 1636. Compared 623029 event pairs, 4242 based on Foata normal form. 90/46575 useless extension candidates. Maximal degree in co-relation 127194. Up to 7676 conditions per place. [2022-01-19 06:59:04,626 INFO L132 encePairwiseOnDemand]: 193/222 looper letters, 352 selfloop transitions, 106 changer transitions 0/660 dead transitions. [2022-01-19 06:59:04,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 660 transitions, 6205 flow [2022-01-19 06:59:04,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-19 06:59:04,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-01-19 06:59:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4076 transitions. [2022-01-19 06:59:04,629 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7344144144144145 [2022-01-19 06:59:04,629 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 4076 transitions. [2022-01-19 06:59:04,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 4076 transitions. [2022-01-19 06:59:04,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:59:04,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 4076 transitions. [2022-01-19 06:59:04,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 163.04) internal successors, (4076), 25 states have internal predecessors, (4076), 0 states have call successors, (0), 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 06:59:04,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 222.0) internal successors, (5772), 26 states have internal predecessors, (5772), 0 states have call successors, (0), 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 06:59:04,636 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 222.0) internal successors, (5772), 26 states have internal predecessors, (5772), 0 states have call successors, (0), 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 06:59:04,637 INFO L186 Difference]: Start difference. First operand has 347 places, 371 transitions, 3041 flow. Second operand 25 states and 4076 transitions. [2022-01-19 06:59:04,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 660 transitions, 6205 flow [2022-01-19 06:59:04,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 660 transitions, 6138 flow, removed 21 selfloop flow, removed 8 redundant places. [2022-01-19 06:59:04,923 INFO L242 Difference]: Finished difference. Result has 378 places, 424 transitions, 4043 flow [2022-01-19 06:59:04,924 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2998, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=4043, PETRI_PLACES=378, PETRI_TRANSITIONS=424} [2022-01-19 06:59:04,924 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 181 predicate places. [2022-01-19 06:59:04,924 INFO L470 AbstractCegarLoop]: Abstraction has has 378 places, 424 transitions, 4043 flow [2022-01-19 06:59:04,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:59:04,925 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:59:04,925 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:04,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 06:59:04,925 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:59:04,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:59:04,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1742920164, now seen corresponding path program 3 times [2022-01-19 06:59:04,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:59:04,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818901206] [2022-01-19 06:59:04,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:59:04,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:59:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:59:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:59:05,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:59:05,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818901206] [2022-01-19 06:59:05,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818901206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:59:05,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:59:05,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 06:59:05,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966177968] [2022-01-19 06:59:05,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:59:05,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 06:59:05,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:59:05,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 06:59:05,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 06:59:05,392 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 06:59:05,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 424 transitions, 4043 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:59:05,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:59:05,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 06:59:05,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:59:16,213 INFO L129 PetriNetUnfolder]: 20115/51515 cut-off events. [2022-01-19 06:59:16,213 INFO L130 PetriNetUnfolder]: For 238302/238655 co-relation queries the response was YES. [2022-01-19 06:59:16,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154569 conditions, 51515 events. 20115/51515 cut-off events. For 238302/238655 co-relation queries the response was YES. Maximal size of possible extension queue 1799. Compared 644292 event pairs, 7979 based on Foata normal form. 103/48034 useless extension candidates. Maximal degree in co-relation 154483. Up to 13399 conditions per place. [2022-01-19 06:59:17,124 INFO L132 encePairwiseOnDemand]: 193/222 looper letters, 317 selfloop transitions, 117 changer transitions 0/636 dead transitions. [2022-01-19 06:59:17,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 636 transitions, 6571 flow [2022-01-19 06:59:17,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 06:59:17,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 06:59:17,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3741 transitions. [2022-01-19 06:59:17,127 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7326674500587544 [2022-01-19 06:59:17,128 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3741 transitions. [2022-01-19 06:59:17,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3741 transitions. [2022-01-19 06:59:17,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:59:17,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3741 transitions. [2022-01-19 06:59:17,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.65217391304347) internal successors, (3741), 23 states have internal predecessors, (3741), 0 states have call successors, (0), 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 06:59:17,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 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 06:59:17,134 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 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 06:59:17,134 INFO L186 Difference]: Start difference. First operand has 378 places, 424 transitions, 4043 flow. Second operand 23 states and 3741 transitions. [2022-01-19 06:59:17,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 636 transitions, 6571 flow [2022-01-19 06:59:17,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 636 transitions, 6450 flow, removed 48 selfloop flow, removed 8 redundant places. [2022-01-19 06:59:17,857 INFO L242 Difference]: Finished difference. Result has 404 places, 454 transitions, 4774 flow [2022-01-19 06:59:17,858 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=3938, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4774, PETRI_PLACES=404, PETRI_TRANSITIONS=454} [2022-01-19 06:59:17,858 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 207 predicate places. [2022-01-19 06:59:17,858 INFO L470 AbstractCegarLoop]: Abstraction has has 404 places, 454 transitions, 4774 flow [2022-01-19 06:59:17,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:59:17,858 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:59:17,859 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:17,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 06:59:17,859 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:59:17,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:59:17,859 INFO L85 PathProgramCache]: Analyzing trace with hash 771038202, now seen corresponding path program 4 times [2022-01-19 06:59:17,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:59:17,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761715219] [2022-01-19 06:59:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:59:17,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:59:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:59:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:59:18,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:59:18,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761715219] [2022-01-19 06:59:18,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761715219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:59:18,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:59:18,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 06:59:18,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008840975] [2022-01-19 06:59:18,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:59:18,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 06:59:18,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:59:18,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 06:59:18,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-19 06:59:18,211 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 06:59:18,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 454 transitions, 4774 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:59:18,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:59:18,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 06:59:18,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:59:31,400 INFO L129 PetriNetUnfolder]: 23087/60332 cut-off events. [2022-01-19 06:59:31,401 INFO L130 PetriNetUnfolder]: For 374228/374629 co-relation queries the response was YES. [2022-01-19 06:59:32,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190975 conditions, 60332 events. 23087/60332 cut-off events. For 374228/374629 co-relation queries the response was YES. Maximal size of possible extension queue 2117. Compared 775614 event pairs, 8958 based on Foata normal form. 232/56661 useless extension candidates. Maximal degree in co-relation 190877. Up to 14953 conditions per place. [2022-01-19 06:59:32,526 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 285 selfloop transitions, 150 changer transitions 0/637 dead transitions. [2022-01-19 06:59:32,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 637 transitions, 7125 flow [2022-01-19 06:59:32,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 06:59:32,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 06:59:32,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3399 transitions. [2022-01-19 06:59:32,529 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7290862290862291 [2022-01-19 06:59:32,529 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3399 transitions. [2022-01-19 06:59:32,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3399 transitions. [2022-01-19 06:59:32,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:59:32,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3399 transitions. [2022-01-19 06:59:32,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 161.85714285714286) internal successors, (3399), 21 states have internal predecessors, (3399), 0 states have call successors, (0), 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 06:59:32,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 06:59:32,537 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 06:59:32,537 INFO L186 Difference]: Start difference. First operand has 404 places, 454 transitions, 4774 flow. Second operand 21 states and 3399 transitions. [2022-01-19 06:59:32,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 637 transitions, 7125 flow [2022-01-19 06:59:33,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 637 transitions, 6870 flow, removed 81 selfloop flow, removed 9 redundant places. [2022-01-19 06:59:33,816 INFO L242 Difference]: Finished difference. Result has 425 places, 480 transitions, 5477 flow [2022-01-19 06:59:33,816 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=4552, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5477, PETRI_PLACES=425, PETRI_TRANSITIONS=480} [2022-01-19 06:59:33,816 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 228 predicate places. [2022-01-19 06:59:33,816 INFO L470 AbstractCegarLoop]: Abstraction has has 425 places, 480 transitions, 5477 flow [2022-01-19 06:59:33,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:59:33,817 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:59:33,817 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:33,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 06:59:33,817 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:59:33,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:59:33,818 INFO L85 PathProgramCache]: Analyzing trace with hash -762353848, now seen corresponding path program 5 times [2022-01-19 06:59:33,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:59:33,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609845939] [2022-01-19 06:59:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:59:33,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:59:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:59:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:59:34,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:59:34,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609845939] [2022-01-19 06:59:34,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609845939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:59:34,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:59:34,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 06:59:34,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596459300] [2022-01-19 06:59:34,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:59:34,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 06:59:34,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:59:34,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 06:59:34,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 06:59:34,124 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 06:59:34,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 480 transitions, 5477 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:59:34,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:59:34,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 06:59:34,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 06:59:48,463 INFO L129 PetriNetUnfolder]: 24100/63330 cut-off events. [2022-01-19 06:59:48,464 INFO L130 PetriNetUnfolder]: For 484606/485047 co-relation queries the response was YES. [2022-01-19 06:59:49,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209385 conditions, 63330 events. 24100/63330 cut-off events. For 484606/485047 co-relation queries the response was YES. Maximal size of possible extension queue 2226. Compared 822786 event pairs, 9879 based on Foata normal form. 166/59245 useless extension candidates. Maximal degree in co-relation 209277. Up to 17385 conditions per place. [2022-01-19 06:59:49,735 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 288 selfloop transitions, 169 changer transitions 0/659 dead transitions. [2022-01-19 06:59:49,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 659 transitions, 8205 flow [2022-01-19 06:59:49,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 06:59:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 06:59:49,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3395 transitions. [2022-01-19 06:59:49,738 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7282282282282282 [2022-01-19 06:59:49,738 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3395 transitions. [2022-01-19 06:59:49,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3395 transitions. [2022-01-19 06:59:49,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 06:59:49,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3395 transitions. [2022-01-19 06:59:49,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 161.66666666666666) internal successors, (3395), 21 states have internal predecessors, (3395), 0 states have call successors, (0), 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 06:59:49,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 06:59:49,743 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 06:59:49,743 INFO L186 Difference]: Start difference. First operand has 425 places, 480 transitions, 5477 flow. Second operand 21 states and 3395 transitions. [2022-01-19 06:59:49,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 659 transitions, 8205 flow [2022-01-19 06:59:51,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 659 transitions, 8060 flow, removed 60 selfloop flow, removed 8 redundant places. [2022-01-19 06:59:51,569 INFO L242 Difference]: Finished difference. Result has 446 places, 518 transitions, 6571 flow [2022-01-19 06:59:51,570 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=5344, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=6571, PETRI_PLACES=446, PETRI_TRANSITIONS=518} [2022-01-19 06:59:51,570 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 249 predicate places. [2022-01-19 06:59:51,570 INFO L470 AbstractCegarLoop]: Abstraction has has 446 places, 518 transitions, 6571 flow [2022-01-19 06:59:51,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:59:51,571 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 06:59:51,571 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:59:51,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 06:59:51,571 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 06:59:51,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 06:59:51,572 INFO L85 PathProgramCache]: Analyzing trace with hash -593902290, now seen corresponding path program 6 times [2022-01-19 06:59:51,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 06:59:51,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585593380] [2022-01-19 06:59:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 06:59:51,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 06:59:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 06:59:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 06:59:51,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 06:59:51,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585593380] [2022-01-19 06:59:51,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585593380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 06:59:51,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 06:59:51,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 06:59:51,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256099336] [2022-01-19 06:59:51,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 06:59:51,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 06:59:51,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 06:59:51,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 06:59:51,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 06:59:51,884 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 06:59:51,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 518 transitions, 6571 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 06:59:51,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 06:59:51,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 06:59:51,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:00:11,086 INFO L129 PetriNetUnfolder]: 26485/69734 cut-off events. [2022-01-19 07:00:11,087 INFO L130 PetriNetUnfolder]: For 589127/589807 co-relation queries the response was YES. [2022-01-19 07:00:12,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237716 conditions, 69734 events. 26485/69734 cut-off events. For 589127/589807 co-relation queries the response was YES. Maximal size of possible extension queue 2581. Compared 923013 event pairs, 11032 based on Foata normal form. 352/65700 useless extension candidates. Maximal degree in co-relation 237599. Up to 17603 conditions per place. [2022-01-19 07:00:12,858 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 371 selfloop transitions, 237 changer transitions 0/810 dead transitions. [2022-01-19 07:00:12,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 810 transitions, 11326 flow [2022-01-19 07:00:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 07:00:12,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 07:00:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3732 transitions. [2022-01-19 07:00:12,860 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7309048178613397 [2022-01-19 07:00:12,861 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3732 transitions. [2022-01-19 07:00:12,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3732 transitions. [2022-01-19 07:00:12,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:00:12,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3732 transitions. [2022-01-19 07:00:12,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.2608695652174) internal successors, (3732), 23 states have internal predecessors, (3732), 0 states have call successors, (0), 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 07:00:12,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 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 07:00:12,869 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 0 states have call successors, (0), 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 07:00:12,869 INFO L186 Difference]: Start difference. First operand has 446 places, 518 transitions, 6571 flow. Second operand 23 states and 3732 transitions. [2022-01-19 07:00:12,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 810 transitions, 11326 flow [2022-01-19 07:00:15,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 810 transitions, 11074 flow, removed 68 selfloop flow, removed 9 redundant places. [2022-01-19 07:00:15,290 INFO L242 Difference]: Finished difference. Result has 470 places, 586 transitions, 8718 flow [2022-01-19 07:00:15,290 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=6335, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=8718, PETRI_PLACES=470, PETRI_TRANSITIONS=586} [2022-01-19 07:00:15,291 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 273 predicate places. [2022-01-19 07:00:15,291 INFO L470 AbstractCegarLoop]: Abstraction has has 470 places, 586 transitions, 8718 flow [2022-01-19 07:00:15,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:00:15,291 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:00:15,291 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:00:15,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 07:00:15,292 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:00:15,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:00:15,292 INFO L85 PathProgramCache]: Analyzing trace with hash 749068364, now seen corresponding path program 7 times [2022-01-19 07:00:15,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:00:15,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633771394] [2022-01-19 07:00:15,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:00:15,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:00:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:00:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:00:15,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:00:15,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633771394] [2022-01-19 07:00:15,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633771394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:00:15,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:00:15,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:00:15,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733311153] [2022-01-19 07:00:15,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:00:15,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:00:15,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:00:15,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:00:15,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:00:15,613 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:00:15,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 586 transitions, 8718 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:00:15,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:00:15,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:00:15,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:00:35,524 INFO L129 PetriNetUnfolder]: 29440/77137 cut-off events. [2022-01-19 07:00:35,524 INFO L130 PetriNetUnfolder]: For 739925/740861 co-relation queries the response was YES. [2022-01-19 07:00:37,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268070 conditions, 77137 events. 29440/77137 cut-off events. For 739925/740861 co-relation queries the response was YES. Maximal size of possible extension queue 2863. Compared 1030977 event pairs, 12923 based on Foata normal form. 480/72597 useless extension candidates. Maximal degree in co-relation 267942. Up to 17915 conditions per place. [2022-01-19 07:00:37,599 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 325 selfloop transitions, 242 changer transitions 0/769 dead transitions. [2022-01-19 07:00:37,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 769 transitions, 11480 flow [2022-01-19 07:00:37,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 07:00:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 07:00:37,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3407 transitions. [2022-01-19 07:00:37,602 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7308022308022308 [2022-01-19 07:00:37,602 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3407 transitions. [2022-01-19 07:00:37,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3407 transitions. [2022-01-19 07:00:37,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:00:37,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3407 transitions. [2022-01-19 07:00:37,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 162.23809523809524) internal successors, (3407), 21 states have internal predecessors, (3407), 0 states have call successors, (0), 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 07:00:37,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 07:00:37,609 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 07:00:37,610 INFO L186 Difference]: Start difference. First operand has 470 places, 586 transitions, 8718 flow. Second operand 21 states and 3407 transitions. [2022-01-19 07:00:37,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 769 transitions, 11480 flow [2022-01-19 07:00:41,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 769 transitions, 10906 flow, removed 148 selfloop flow, removed 10 redundant places. [2022-01-19 07:00:41,603 INFO L242 Difference]: Finished difference. Result has 488 places, 613 transitions, 9367 flow [2022-01-19 07:00:41,604 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=8261, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9367, PETRI_PLACES=488, PETRI_TRANSITIONS=613} [2022-01-19 07:00:41,604 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 291 predicate places. [2022-01-19 07:00:41,604 INFO L470 AbstractCegarLoop]: Abstraction has has 488 places, 613 transitions, 9367 flow [2022-01-19 07:00:41,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:00:41,604 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:00:41,605 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:00:41,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-19 07:00:41,605 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:00:41,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:00:41,605 INFO L85 PathProgramCache]: Analyzing trace with hash 668566888, now seen corresponding path program 8 times [2022-01-19 07:00:41,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:00:41,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651711474] [2022-01-19 07:00:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:00:41,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:00:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:00:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:00:41,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:00:41,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651711474] [2022-01-19 07:00:41,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651711474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:00:41,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:00:41,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:00:41,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825707553] [2022-01-19 07:00:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:00:41,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:00:41,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:00:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:00:41,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:00:41,922 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:00:41,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 613 transitions, 9367 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:00:41,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:00:41,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:00:41,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:03,215 INFO L129 PetriNetUnfolder]: 30394/79769 cut-off events. [2022-01-19 07:01:03,215 INFO L130 PetriNetUnfolder]: For 679362/680458 co-relation queries the response was YES. [2022-01-19 07:01:05,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269926 conditions, 79769 events. 30394/79769 cut-off events. For 679362/680458 co-relation queries the response was YES. Maximal size of possible extension queue 3007. Compared 1072814 event pairs, 13453 based on Foata normal form. 488/75009 useless extension candidates. Maximal degree in co-relation 269790. Up to 18971 conditions per place. [2022-01-19 07:01:05,935 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 326 selfloop transitions, 249 changer transitions 0/777 dead transitions. [2022-01-19 07:01:05,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 777 transitions, 11729 flow [2022-01-19 07:01:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 07:01:05,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 07:01:05,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3408 transitions. [2022-01-19 07:01:05,938 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.731016731016731 [2022-01-19 07:01:05,938 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3408 transitions. [2022-01-19 07:01:05,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3408 transitions. [2022-01-19 07:01:05,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:05,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3408 transitions. [2022-01-19 07:01:05,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 162.28571428571428) internal successors, (3408), 21 states have internal predecessors, (3408), 0 states have call successors, (0), 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 07:01:05,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 07:01:05,945 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 07:01:05,946 INFO L186 Difference]: Start difference. First operand has 488 places, 613 transitions, 9367 flow. Second operand 21 states and 3408 transitions. [2022-01-19 07:01:05,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 777 transitions, 11729 flow [2022-01-19 07:01:09,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 777 transitions, 11475 flow, removed 43 selfloop flow, removed 10 redundant places. [2022-01-19 07:01:09,451 INFO L242 Difference]: Finished difference. Result has 506 places, 629 transitions, 10023 flow [2022-01-19 07:01:09,452 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=9114, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10023, PETRI_PLACES=506, PETRI_TRANSITIONS=629} [2022-01-19 07:01:09,452 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 309 predicate places. [2022-01-19 07:01:09,452 INFO L470 AbstractCegarLoop]: Abstraction has has 506 places, 629 transitions, 10023 flow [2022-01-19 07:01:09,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:01:09,453 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:09,453 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:09,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 07:01:09,453 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:01:09,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:09,453 INFO L85 PathProgramCache]: Analyzing trace with hash 736610768, now seen corresponding path program 9 times [2022-01-19 07:01:09,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:09,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752915491] [2022-01-19 07:01:09,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:09,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:01:09,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:09,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752915491] [2022-01-19 07:01:09,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752915491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:09,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:09,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:01:09,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689546947] [2022-01-19 07:01:09,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:09,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:01:09,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:09,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:01:09,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:01:09,779 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:01:09,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 629 transitions, 10023 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:01:09,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:09,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:01:09,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:01:33,420 INFO L129 PetriNetUnfolder]: 30800/80840 cut-off events. [2022-01-19 07:01:33,420 INFO L130 PetriNetUnfolder]: For 720451/721545 co-relation queries the response was YES. [2022-01-19 07:01:35,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276923 conditions, 80840 events. 30800/80840 cut-off events. For 720451/721545 co-relation queries the response was YES. Maximal size of possible extension queue 3089. Compared 1090387 event pairs, 14689 based on Foata normal form. 480/75842 useless extension candidates. Maximal degree in co-relation 276779. Up to 21299 conditions per place. [2022-01-19 07:01:35,842 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 310 selfloop transitions, 252 changer transitions 0/764 dead transitions. [2022-01-19 07:01:35,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 764 transitions, 12478 flow [2022-01-19 07:01:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:01:35,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:01:35,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3066 transitions. [2022-01-19 07:01:35,845 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7268847795163584 [2022-01-19 07:01:35,845 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3066 transitions. [2022-01-19 07:01:35,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3066 transitions. [2022-01-19 07:01:35,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:01:35,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3066 transitions. [2022-01-19 07:01:35,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.3684210526316) internal successors, (3066), 19 states have internal predecessors, (3066), 0 states have call successors, (0), 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 07:01:35,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:01:35,852 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:01:35,852 INFO L186 Difference]: Start difference. First operand has 506 places, 629 transitions, 10023 flow. Second operand 19 states and 3066 transitions. [2022-01-19 07:01:35,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 764 transitions, 12478 flow [2022-01-19 07:01:39,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 764 transitions, 12118 flow, removed 61 selfloop flow, removed 10 redundant places. [2022-01-19 07:01:39,851 INFO L242 Difference]: Finished difference. Result has 519 places, 643 transitions, 10626 flow [2022-01-19 07:01:39,852 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=9681, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10626, PETRI_PLACES=519, PETRI_TRANSITIONS=643} [2022-01-19 07:01:39,852 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 322 predicate places. [2022-01-19 07:01:39,852 INFO L470 AbstractCegarLoop]: Abstraction has has 519 places, 643 transitions, 10626 flow [2022-01-19 07:01:39,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:01:39,853 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:01:39,853 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:01:39,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 07:01:39,853 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:01:39,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:01:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1671435892, now seen corresponding path program 10 times [2022-01-19 07:01:39,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:01:39,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040787368] [2022-01-19 07:01:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:01:39,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:01:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:01:40,133 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:01:40,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:01:40,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040787368] [2022-01-19 07:01:40,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040787368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:01:40,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:01:40,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:01:40,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527990124] [2022-01-19 07:01:40,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:01:40,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:01:40,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:01:40,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:01:40,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:01:40,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:01:40,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 643 transitions, 10626 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:01:40,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:01:40,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:01:40,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:02,632 INFO L129 PetriNetUnfolder]: 30376/79820 cut-off events. [2022-01-19 07:02:02,632 INFO L130 PetriNetUnfolder]: For 711210/712328 co-relation queries the response was YES. [2022-01-19 07:02:04,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271996 conditions, 79820 events. 30376/79820 cut-off events. For 711210/712328 co-relation queries the response was YES. Maximal size of possible extension queue 3039. Compared 1075114 event pairs, 14143 based on Foata normal form. 568/75050 useless extension candidates. Maximal degree in co-relation 271847. Up to 20083 conditions per place. [2022-01-19 07:02:05,120 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 312 selfloop transitions, 244 changer transitions 0/758 dead transitions. [2022-01-19 07:02:05,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 758 transitions, 12330 flow [2022-01-19 07:02:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:02:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:02:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3070 transitions. [2022-01-19 07:02:05,123 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7278330962541489 [2022-01-19 07:02:05,123 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3070 transitions. [2022-01-19 07:02:05,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3070 transitions. [2022-01-19 07:02:05,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:05,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3070 transitions. [2022-01-19 07:02:05,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.57894736842104) internal successors, (3070), 19 states have internal predecessors, (3070), 0 states have call successors, (0), 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 07:02:05,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:02:05,129 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:02:05,129 INFO L186 Difference]: Start difference. First operand has 519 places, 643 transitions, 10626 flow. Second operand 19 states and 3070 transitions. [2022-01-19 07:02:05,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 758 transitions, 12330 flow [2022-01-19 07:02:09,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 758 transitions, 11824 flow, removed 24 selfloop flow, removed 13 redundant places. [2022-01-19 07:02:09,055 INFO L242 Difference]: Finished difference. Result has 528 places, 634 transitions, 10363 flow [2022-01-19 07:02:09,055 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=9831, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10363, PETRI_PLACES=528, PETRI_TRANSITIONS=634} [2022-01-19 07:02:09,056 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 331 predicate places. [2022-01-19 07:02:09,056 INFO L470 AbstractCegarLoop]: Abstraction has has 528 places, 634 transitions, 10363 flow [2022-01-19 07:02:09,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:02:09,057 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:09,057 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:09,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 07:02:09,057 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:02:09,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:09,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1486018528, now seen corresponding path program 11 times [2022-01-19 07:02:09,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:09,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937373477] [2022-01-19 07:02:09,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:09,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:02:09,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:09,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937373477] [2022-01-19 07:02:09,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937373477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:09,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:09,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:02:09,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820480145] [2022-01-19 07:02:09,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:09,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:02:09,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:09,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:02:09,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:02:09,477 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:02:09,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 634 transitions, 10363 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:02:09,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:09,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:02:09,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:02:32,577 INFO L129 PetriNetUnfolder]: 31265/82593 cut-off events. [2022-01-19 07:02:32,578 INFO L130 PetriNetUnfolder]: For 730367/731480 co-relation queries the response was YES. [2022-01-19 07:02:35,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281093 conditions, 82593 events. 31265/82593 cut-off events. For 730367/731480 co-relation queries the response was YES. Maximal size of possible extension queue 3082. Compared 1123067 event pairs, 12747 based on Foata normal form. 438/77260 useless extension candidates. Maximal degree in co-relation 280940. Up to 20925 conditions per place. [2022-01-19 07:02:35,613 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 301 selfloop transitions, 268 changer transitions 0/771 dead transitions. [2022-01-19 07:02:35,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 771 transitions, 12866 flow [2022-01-19 07:02:35,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:02:35,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:02:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3067 transitions. [2022-01-19 07:02:35,618 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.727121858700806 [2022-01-19 07:02:35,618 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3067 transitions. [2022-01-19 07:02:35,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3067 transitions. [2022-01-19 07:02:35,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:02:35,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3067 transitions. [2022-01-19 07:02:35,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.42105263157896) internal successors, (3067), 19 states have internal predecessors, (3067), 0 states have call successors, (0), 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 07:02:35,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:02:35,634 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:02:35,634 INFO L186 Difference]: Start difference. First operand has 528 places, 634 transitions, 10363 flow. Second operand 19 states and 3067 transitions. [2022-01-19 07:02:35,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 771 transitions, 12866 flow [2022-01-19 07:02:41,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 771 transitions, 12496 flow, removed 1 selfloop flow, removed 13 redundant places. [2022-01-19 07:02:41,912 INFO L242 Difference]: Finished difference. Result has 538 places, 656 transitions, 11174 flow [2022-01-19 07:02:41,913 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10017, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11174, PETRI_PLACES=538, PETRI_TRANSITIONS=656} [2022-01-19 07:02:41,914 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 341 predicate places. [2022-01-19 07:02:41,914 INFO L470 AbstractCegarLoop]: Abstraction has has 538 places, 656 transitions, 11174 flow [2022-01-19 07:02:41,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:02:41,914 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:02:41,915 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:02:41,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-19 07:02:41,915 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:02:41,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:02:41,916 INFO L85 PathProgramCache]: Analyzing trace with hash -331014816, now seen corresponding path program 12 times [2022-01-19 07:02:41,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:02:41,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878335485] [2022-01-19 07:02:41,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:02:41,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:02:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:02:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:02:42,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:02:42,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878335485] [2022-01-19 07:02:42,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878335485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:02:42,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:02:42,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:02:42,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124402944] [2022-01-19 07:02:42,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:02:42,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:02:42,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:02:42,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:02:42,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:02:42,300 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:02:42,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 656 transitions, 11174 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:02:42,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:02:42,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:02:42,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:06,380 INFO L129 PetriNetUnfolder]: 31217/82512 cut-off events. [2022-01-19 07:03:06,380 INFO L130 PetriNetUnfolder]: For 754157/755338 co-relation queries the response was YES. [2022-01-19 07:03:09,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282970 conditions, 82512 events. 31217/82512 cut-off events. For 754157/755338 co-relation queries the response was YES. Maximal size of possible extension queue 3082. Compared 1122613 event pairs, 12749 based on Foata normal form. 430/77167 useless extension candidates. Maximal degree in co-relation 282812. Up to 20925 conditions per place. [2022-01-19 07:03:09,487 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 307 selfloop transitions, 266 changer transitions 0/775 dead transitions. [2022-01-19 07:03:09,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 775 transitions, 13152 flow [2022-01-19 07:03:09,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:03:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:03:09,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3072 transitions. [2022-01-19 07:03:09,489 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7283072546230441 [2022-01-19 07:03:09,490 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3072 transitions. [2022-01-19 07:03:09,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3072 transitions. [2022-01-19 07:03:09,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:09,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3072 transitions. [2022-01-19 07:03:09,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.68421052631578) internal successors, (3072), 19 states have internal predecessors, (3072), 0 states have call successors, (0), 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 07:03:09,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:03:09,495 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:03:09,496 INFO L186 Difference]: Start difference. First operand has 538 places, 656 transitions, 11174 flow. Second operand 19 states and 3072 transitions. [2022-01-19 07:03:09,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 775 transitions, 13152 flow [2022-01-19 07:03:13,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 775 transitions, 12745 flow, removed 10 selfloop flow, removed 12 redundant places. [2022-01-19 07:03:13,552 INFO L242 Difference]: Finished difference. Result has 549 places, 658 transitions, 11401 flow [2022-01-19 07:03:13,552 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10768, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11401, PETRI_PLACES=549, PETRI_TRANSITIONS=658} [2022-01-19 07:03:13,552 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 352 predicate places. [2022-01-19 07:03:13,553 INFO L470 AbstractCegarLoop]: Abstraction has has 549 places, 658 transitions, 11401 flow [2022-01-19 07:03:13,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:03:13,553 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:13,553 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:03:13,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-19 07:03:13,553 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:03:13,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:13,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1119946728, now seen corresponding path program 13 times [2022-01-19 07:03:13,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:13,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888408929] [2022-01-19 07:03:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:13,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:03:13,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:13,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888408929] [2022-01-19 07:03:13,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888408929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:13,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:13,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:03:13,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210690670] [2022-01-19 07:03:13,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:13,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:03:13,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:13,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:03:13,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:03:13,871 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:03:13,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 658 transitions, 11401 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:03:13,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:13,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:03:13,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:03:40,959 INFO L129 PetriNetUnfolder]: 31972/84408 cut-off events. [2022-01-19 07:03:40,960 INFO L130 PetriNetUnfolder]: For 794773/795891 co-relation queries the response was YES. [2022-01-19 07:03:44,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 288964 conditions, 84408 events. 31972/84408 cut-off events. For 794773/795891 co-relation queries the response was YES. Maximal size of possible extension queue 3223. Compared 1148720 event pairs, 14901 based on Foata normal form. 512/79180 useless extension candidates. Maximal degree in co-relation 288801. Up to 21139 conditions per place. [2022-01-19 07:03:44,462 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 307 selfloop transitions, 263 changer transitions 0/772 dead transitions. [2022-01-19 07:03:44,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 772 transitions, 13117 flow [2022-01-19 07:03:44,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:03:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:03:44,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3071 transitions. [2022-01-19 07:03:44,464 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2022-01-19 07:03:44,464 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3071 transitions. [2022-01-19 07:03:44,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3071 transitions. [2022-01-19 07:03:44,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:03:44,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3071 transitions. [2022-01-19 07:03:44,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.6315789473684) internal successors, (3071), 19 states have internal predecessors, (3071), 0 states have call successors, (0), 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 07:03:44,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:03:44,468 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:03:44,469 INFO L186 Difference]: Start difference. First operand has 549 places, 658 transitions, 11401 flow. Second operand 19 states and 3071 transitions. [2022-01-19 07:03:44,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 772 transitions, 13117 flow [2022-01-19 07:03:48,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 772 transitions, 12703 flow, removed 12 selfloop flow, removed 12 redundant places. [2022-01-19 07:03:48,635 INFO L242 Difference]: Finished difference. Result has 559 places, 654 transitions, 11387 flow [2022-01-19 07:03:48,635 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10735, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11387, PETRI_PLACES=559, PETRI_TRANSITIONS=654} [2022-01-19 07:03:48,636 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 362 predicate places. [2022-01-19 07:03:48,636 INFO L470 AbstractCegarLoop]: Abstraction has has 559 places, 654 transitions, 11387 flow [2022-01-19 07:03:48,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:03:48,636 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:03:48,637 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:03:48,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-19 07:03:48,637 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:03:48,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:03:48,637 INFO L85 PathProgramCache]: Analyzing trace with hash -236161478, now seen corresponding path program 14 times [2022-01-19 07:03:48,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:03:48,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241537536] [2022-01-19 07:03:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:03:48,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:03:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:03:48,959 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:03:48,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:03:48,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241537536] [2022-01-19 07:03:48,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241537536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:03:48,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:03:48,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:03:48,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749619187] [2022-01-19 07:03:48,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:03:48,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:03:48,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:03:48,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:03:48,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:03:48,962 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:03:48,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 654 transitions, 11387 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:03:48,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:03:48,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:03:48,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:04:13,185 INFO L129 PetriNetUnfolder]: 31623/83674 cut-off events. [2022-01-19 07:04:13,185 INFO L130 PetriNetUnfolder]: For 806814/807937 co-relation queries the response was YES. [2022-01-19 07:04:15,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 286116 conditions, 83674 events. 31623/83674 cut-off events. For 806814/807937 co-relation queries the response was YES. Maximal size of possible extension queue 3177. Compared 1141318 event pairs, 12635 based on Foata normal form. 478/78297 useless extension candidates. Maximal degree in co-relation 285949. Up to 20765 conditions per place. [2022-01-19 07:04:16,436 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 311 selfloop transitions, 252 changer transitions 0/765 dead transitions. [2022-01-19 07:04:16,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 765 transitions, 12945 flow [2022-01-19 07:04:16,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:04:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:04:16,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3076 transitions. [2022-01-19 07:04:16,439 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7292555713608345 [2022-01-19 07:04:16,439 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3076 transitions. [2022-01-19 07:04:16,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3076 transitions. [2022-01-19 07:04:16,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:04:16,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3076 transitions. [2022-01-19 07:04:16,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.89473684210526) internal successors, (3076), 19 states have internal predecessors, (3076), 0 states have call successors, (0), 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 07:04:16,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:04:16,445 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:04:16,445 INFO L186 Difference]: Start difference. First operand has 559 places, 654 transitions, 11387 flow. Second operand 19 states and 3076 transitions. [2022-01-19 07:04:16,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 765 transitions, 12945 flow [2022-01-19 07:04:20,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 765 transitions, 12512 flow, removed 33 selfloop flow, removed 13 redundant places. [2022-01-19 07:04:20,628 INFO L242 Difference]: Finished difference. Result has 568 places, 645 transitions, 11194 flow [2022-01-19 07:04:20,629 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10647, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11194, PETRI_PLACES=568, PETRI_TRANSITIONS=645} [2022-01-19 07:04:20,629 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 371 predicate places. [2022-01-19 07:04:20,629 INFO L470 AbstractCegarLoop]: Abstraction has has 568 places, 645 transitions, 11194 flow [2022-01-19 07:04:20,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:04:20,630 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:04:20,630 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:20,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-19 07:04:20,630 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:04:20,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:04:20,630 INFO L85 PathProgramCache]: Analyzing trace with hash 303212124, now seen corresponding path program 15 times [2022-01-19 07:04:20,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:04:20,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799305680] [2022-01-19 07:04:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:04:20,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:04:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:04:20,957 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:04:20,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:04:20,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799305680] [2022-01-19 07:04:20,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799305680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:04:20,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:04:20,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:04:20,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52687949] [2022-01-19 07:04:20,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:04:20,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:04:20,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:04:20,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:04:20,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:04:20,960 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:04:20,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 645 transitions, 11194 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:04:20,961 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:04:20,961 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:04:20,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:04:49,626 INFO L129 PetriNetUnfolder]: 32952/86896 cut-off events. [2022-01-19 07:04:49,626 INFO L130 PetriNetUnfolder]: For 857870/859104 co-relation queries the response was YES. [2022-01-19 07:04:52,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300228 conditions, 86896 events. 32952/86896 cut-off events. For 857870/859104 co-relation queries the response was YES. Maximal size of possible extension queue 3306. Compared 1187720 event pairs, 15205 based on Foata normal form. 404/81443 useless extension candidates. Maximal degree in co-relation 300057. Up to 21827 conditions per place. [2022-01-19 07:04:53,183 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 344 selfloop transitions, 298 changer transitions 0/844 dead transitions. [2022-01-19 07:04:53,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 844 transitions, 14850 flow [2022-01-19 07:04:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 07:04:53,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 07:04:53,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3397 transitions. [2022-01-19 07:04:53,186 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7286572286572287 [2022-01-19 07:04:53,186 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3397 transitions. [2022-01-19 07:04:53,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3397 transitions. [2022-01-19 07:04:53,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:04:53,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3397 transitions. [2022-01-19 07:04:53,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 161.76190476190476) internal successors, (3397), 21 states have internal predecessors, (3397), 0 states have call successors, (0), 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 07:04:53,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 07:04:53,190 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 07:04:53,190 INFO L186 Difference]: Start difference. First operand has 568 places, 645 transitions, 11194 flow. Second operand 21 states and 3397 transitions. [2022-01-19 07:04:53,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 844 transitions, 14850 flow [2022-01-19 07:04:57,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 844 transitions, 14438 flow, removed 4 selfloop flow, removed 13 redundant places. [2022-01-19 07:04:57,510 INFO L242 Difference]: Finished difference. Result has 583 places, 685 transitions, 12697 flow [2022-01-19 07:04:57,511 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=10825, PETRI_DIFFERENCE_MINUEND_PLACES=555, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12697, PETRI_PLACES=583, PETRI_TRANSITIONS=685} [2022-01-19 07:04:57,511 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 386 predicate places. [2022-01-19 07:04:57,511 INFO L470 AbstractCegarLoop]: Abstraction has has 583 places, 685 transitions, 12697 flow [2022-01-19 07:04:57,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:04:57,512 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:04:57,512 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:57,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-19 07:04:57,512 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:04:57,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:04:57,512 INFO L85 PathProgramCache]: Analyzing trace with hash -836549952, now seen corresponding path program 16 times [2022-01-19 07:04:57,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:04:57,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355198830] [2022-01-19 07:04:57,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:04:57,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:04:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:04:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:04:57,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:04:57,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355198830] [2022-01-19 07:04:57,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355198830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:04:57,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:04:57,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:04:57,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891889921] [2022-01-19 07:04:57,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:04:57,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:04:57,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:04:57,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:04:57,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:04:57,835 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:04:57,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 685 transitions, 12697 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:04:57,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:04:57,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:04:57,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:05:25,062 INFO L129 PetriNetUnfolder]: 33628/88833 cut-off events. [2022-01-19 07:05:25,063 INFO L130 PetriNetUnfolder]: For 924322/925680 co-relation queries the response was YES. [2022-01-19 07:05:28,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312049 conditions, 88833 events. 33628/88833 cut-off events. For 924322/925680 co-relation queries the response was YES. Maximal size of possible extension queue 3377. Compared 1218805 event pairs, 15706 based on Foata normal form. 396/83177 useless extension candidates. Maximal degree in co-relation 311870. Up to 21827 conditions per place. [2022-01-19 07:05:29,027 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 349 selfloop transitions, 298 changer transitions 0/849 dead transitions. [2022-01-19 07:05:29,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 603 places, 849 transitions, 15615 flow [2022-01-19 07:05:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 07:05:29,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 07:05:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3396 transitions. [2022-01-19 07:05:29,029 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7284427284427284 [2022-01-19 07:05:29,029 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3396 transitions. [2022-01-19 07:05:29,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3396 transitions. [2022-01-19 07:05:29,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:05:29,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3396 transitions. [2022-01-19 07:05:29,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 161.71428571428572) internal successors, (3396), 21 states have internal predecessors, (3396), 0 states have call successors, (0), 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 07:05:29,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 07:05:29,035 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 222.0) internal successors, (4884), 22 states have internal predecessors, (4884), 0 states have call successors, (0), 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 07:05:29,035 INFO L186 Difference]: Start difference. First operand has 583 places, 685 transitions, 12697 flow. Second operand 21 states and 3396 transitions. [2022-01-19 07:05:29,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 603 places, 849 transitions, 15615 flow [2022-01-19 07:05:33,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 593 places, 849 transitions, 15342 flow, removed 59 selfloop flow, removed 10 redundant places. [2022-01-19 07:05:33,798 INFO L242 Difference]: Finished difference. Result has 601 places, 705 transitions, 13709 flow [2022-01-19 07:05:33,799 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=12425, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=13709, PETRI_PLACES=601, PETRI_TRANSITIONS=705} [2022-01-19 07:05:33,799 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 404 predicate places. [2022-01-19 07:05:33,799 INFO L470 AbstractCegarLoop]: Abstraction has has 601 places, 705 transitions, 13709 flow [2022-01-19 07:05:33,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:05:33,800 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:05:33,800 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:33,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-19 07:05:33,800 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:05:33,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:05:33,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1651227036, now seen corresponding path program 17 times [2022-01-19 07:05:33,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:05:33,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685353928] [2022-01-19 07:05:33,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:05:33,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:05:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:05:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:05:34,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:05:34,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685353928] [2022-01-19 07:05:34,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685353928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:05:34,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:05:34,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:05:34,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221016062] [2022-01-19 07:05:34,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:05:34,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:05:34,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:05:34,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:05:34,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:05:34,089 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:05:34,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 705 transitions, 13709 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:05:34,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:05:34,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:05:34,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:06:04,839 INFO L129 PetriNetUnfolder]: 33611/88917 cut-off events. [2022-01-19 07:06:04,839 INFO L130 PetriNetUnfolder]: For 977850/979279 co-relation queries the response was YES. [2022-01-19 07:06:08,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315276 conditions, 88917 events. 33611/88917 cut-off events. For 977850/979279 co-relation queries the response was YES. Maximal size of possible extension queue 3369. Compared 1223587 event pairs, 13546 based on Foata normal form. 506/83239 useless extension candidates. Maximal degree in co-relation 315089. Up to 21717 conditions per place. [2022-01-19 07:06:08,703 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 335 selfloop transitions, 302 changer transitions 0/839 dead transitions. [2022-01-19 07:06:08,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 839 transitions, 16000 flow [2022-01-19 07:06:08,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:06:08,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:06:08,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3064 transitions. [2022-01-19 07:06:08,706 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7264106211474632 [2022-01-19 07:06:08,706 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3064 transitions. [2022-01-19 07:06:08,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3064 transitions. [2022-01-19 07:06:08,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:06:08,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3064 transitions. [2022-01-19 07:06:08,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.26315789473685) internal successors, (3064), 19 states have internal predecessors, (3064), 0 states have call successors, (0), 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 07:06:08,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:06:08,711 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:06:08,711 INFO L186 Difference]: Start difference. First operand has 601 places, 705 transitions, 13709 flow. Second operand 19 states and 3064 transitions. [2022-01-19 07:06:08,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 839 transitions, 16000 flow [2022-01-19 07:06:13,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 839 transitions, 15620 flow, removed 89 selfloop flow, removed 10 redundant places. [2022-01-19 07:06:13,737 INFO L242 Difference]: Finished difference. Result has 614 places, 707 transitions, 14022 flow [2022-01-19 07:06:13,738 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=13329, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=300, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14022, PETRI_PLACES=614, PETRI_TRANSITIONS=707} [2022-01-19 07:06:13,738 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 417 predicate places. [2022-01-19 07:06:13,738 INFO L470 AbstractCegarLoop]: Abstraction has has 614 places, 707 transitions, 14022 flow [2022-01-19 07:06:13,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:06:13,739 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:06:13,739 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:06:13,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-19 07:06:13,739 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:06:13,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:06:13,740 INFO L85 PathProgramCache]: Analyzing trace with hash -459195216, now seen corresponding path program 18 times [2022-01-19 07:06:13,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:06:13,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530357369] [2022-01-19 07:06:13,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:06:13,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:06:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:06:14,032 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:06:14,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:06:14,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530357369] [2022-01-19 07:06:14,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530357369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:06:14,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:06:14,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:06:14,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098085342] [2022-01-19 07:06:14,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:06:14,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:06:14,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:06:14,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:06:14,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:06:14,036 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:06:14,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 707 transitions, 14022 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:06:14,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:06:14,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:06:14,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:06:44,143 INFO L129 PetriNetUnfolder]: 34349/90501 cut-off events. [2022-01-19 07:06:44,144 INFO L130 PetriNetUnfolder]: For 1019761/1021191 co-relation queries the response was YES. [2022-01-19 07:06:48,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320319 conditions, 90501 events. 34349/90501 cut-off events. For 1019761/1021191 co-relation queries the response was YES. Maximal size of possible extension queue 3506. Compared 1243891 event pairs, 15892 based on Foata normal form. 572/84950 useless extension candidates. Maximal degree in co-relation 320127. Up to 21931 conditions per place. [2022-01-19 07:06:48,313 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 341 selfloop transitions, 295 changer transitions 0/838 dead transitions. [2022-01-19 07:06:48,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 838 transitions, 16024 flow [2022-01-19 07:06:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:06:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:06:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3068 transitions. [2022-01-19 07:06:48,315 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7273589378852536 [2022-01-19 07:06:48,315 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3068 transitions. [2022-01-19 07:06:48,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3068 transitions. [2022-01-19 07:06:48,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:06:48,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3068 transitions. [2022-01-19 07:06:48,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.47368421052633) internal successors, (3068), 19 states have internal predecessors, (3068), 0 states have call successors, (0), 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 07:06:48,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:06:48,321 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:06:48,321 INFO L186 Difference]: Start difference. First operand has 614 places, 707 transitions, 14022 flow. Second operand 19 states and 3068 transitions. [2022-01-19 07:06:48,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 838 transitions, 16024 flow [2022-01-19 07:06:53,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 838 transitions, 15640 flow, removed 7 selfloop flow, removed 12 redundant places. [2022-01-19 07:06:53,511 INFO L242 Difference]: Finished difference. Result has 624 places, 703 transitions, 14079 flow [2022-01-19 07:06:53,512 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=13355, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=291, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14079, PETRI_PLACES=624, PETRI_TRANSITIONS=703} [2022-01-19 07:06:53,512 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 427 predicate places. [2022-01-19 07:06:53,512 INFO L470 AbstractCegarLoop]: Abstraction has has 624 places, 703 transitions, 14079 flow [2022-01-19 07:06:53,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:06:53,513 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:06:53,513 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:06:53,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-19 07:06:53,513 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:06:53,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:06:53,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1275461516, now seen corresponding path program 19 times [2022-01-19 07:06:53,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:06:53,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622352078] [2022-01-19 07:06:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:06:53,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:06:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:06:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:06:53,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:06:53,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622352078] [2022-01-19 07:06:53,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622352078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:06:53,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:06:53,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:06:53,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006630814] [2022-01-19 07:06:53,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:06:53,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:06:53,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:06:53,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:06:53,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:06:53,825 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:06:53,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 703 transitions, 14079 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:06:53,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:06:53,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:06:53,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:07:25,591 INFO L129 PetriNetUnfolder]: 35214/92909 cut-off events. [2022-01-19 07:07:25,592 INFO L130 PetriNetUnfolder]: For 1072094/1073496 co-relation queries the response was YES. [2022-01-19 07:07:29,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331962 conditions, 92909 events. 35214/92909 cut-off events. For 1072094/1073496 co-relation queries the response was YES. Maximal size of possible extension queue 3566. Compared 1282901 event pairs, 16610 based on Foata normal form. 452/86955 useless extension candidates. Maximal degree in co-relation 331766. Up to 22883 conditions per place. [2022-01-19 07:07:30,088 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 332 selfloop transitions, 310 changer transitions 0/844 dead transitions. [2022-01-19 07:07:30,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 844 transitions, 16868 flow [2022-01-19 07:07:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:07:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:07:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3063 transitions. [2022-01-19 07:07:30,090 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7261735419630156 [2022-01-19 07:07:30,090 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3063 transitions. [2022-01-19 07:07:30,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3063 transitions. [2022-01-19 07:07:30,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:07:30,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3063 transitions. [2022-01-19 07:07:30,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.21052631578948) internal successors, (3063), 19 states have internal predecessors, (3063), 0 states have call successors, (0), 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 07:07:30,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:07:30,095 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:07:30,095 INFO L186 Difference]: Start difference. First operand has 624 places, 703 transitions, 14079 flow. Second operand 19 states and 3063 transitions. [2022-01-19 07:07:30,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 844 transitions, 16868 flow [2022-01-19 07:07:35,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 844 transitions, 16241 flow, removed 18 selfloop flow, removed 13 redundant places. [2022-01-19 07:07:35,366 INFO L242 Difference]: Finished difference. Result has 634 places, 725 transitions, 14835 flow [2022-01-19 07:07:35,366 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=13482, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=288, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14835, PETRI_PLACES=634, PETRI_TRANSITIONS=725} [2022-01-19 07:07:35,367 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 437 predicate places. [2022-01-19 07:07:35,367 INFO L470 AbstractCegarLoop]: Abstraction has has 634 places, 725 transitions, 14835 flow [2022-01-19 07:07:35,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:07:35,368 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:07:35,368 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:07:35,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-19 07:07:35,368 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:07:35,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:07:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash -977680164, now seen corresponding path program 20 times [2022-01-19 07:07:35,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:07:35,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827497129] [2022-01-19 07:07:35,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:07:35,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:07:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:07:35,679 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:07:35,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:07:35,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827497129] [2022-01-19 07:07:35,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827497129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:07:35,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:07:35,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:07:35,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160524221] [2022-01-19 07:07:35,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:07:35,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:07:35,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:07:35,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:07:35,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:07:35,683 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:07:35,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 725 transitions, 14835 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:07:35,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:07:35,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:07:35,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:08:06,788 INFO L129 PetriNetUnfolder]: 35150/92879 cut-off events. [2022-01-19 07:08:06,788 INFO L130 PetriNetUnfolder]: For 1076656/1078188 co-relation queries the response was YES. [2022-01-19 07:08:11,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331523 conditions, 92879 events. 35150/92879 cut-off events. For 1076656/1078188 co-relation queries the response was YES. Maximal size of possible extension queue 3566. Compared 1282488 event pairs, 16502 based on Foata normal form. 444/86917 useless extension candidates. Maximal degree in co-relation 331322. Up to 22883 conditions per place. [2022-01-19 07:08:12,155 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 339 selfloop transitions, 308 changer transitions 0/849 dead transitions. [2022-01-19 07:08:12,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 849 transitions, 17015 flow [2022-01-19 07:08:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:08:12,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:08:12,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3068 transitions. [2022-01-19 07:08:12,158 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7273589378852536 [2022-01-19 07:08:12,158 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3068 transitions. [2022-01-19 07:08:12,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3068 transitions. [2022-01-19 07:08:12,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:08:12,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3068 transitions. [2022-01-19 07:08:12,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 161.47368421052633) internal successors, (3068), 19 states have internal predecessors, (3068), 0 states have call successors, (0), 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 07:08:12,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:08:12,164 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 222.0) internal successors, (4440), 20 states have internal predecessors, (4440), 0 states have call successors, (0), 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 07:08:12,164 INFO L186 Difference]: Start difference. First operand has 634 places, 725 transitions, 14835 flow. Second operand 19 states and 3068 transitions. [2022-01-19 07:08:12,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 652 places, 849 transitions, 17015 flow [2022-01-19 07:08:20,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 849 transitions, 16649 flow, removed 10 selfloop flow, removed 11 redundant places. [2022-01-19 07:08:20,229 INFO L242 Difference]: Finished difference. Result has 646 places, 727 transitions, 15187 flow [2022-01-19 07:08:20,230 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=14469, PETRI_DIFFERENCE_MINUEND_PLACES=623, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=306, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=15187, PETRI_PLACES=646, PETRI_TRANSITIONS=727} [2022-01-19 07:08:20,230 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 449 predicate places. [2022-01-19 07:08:20,230 INFO L470 AbstractCegarLoop]: Abstraction has has 646 places, 727 transitions, 15187 flow [2022-01-19 07:08:20,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:08:20,231 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:08:20,231 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:08:20,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-19 07:08:20,231 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 07:08:20,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:08:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash 548801258, now seen corresponding path program 21 times [2022-01-19 07:08:20,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:08:20,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633618014] [2022-01-19 07:08:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:08:20,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:08:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:08:20,600 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-01-19 07:08:20,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:08:20,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633618014] [2022-01-19 07:08:20,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633618014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:08:20,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:08:20,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 07:08:20,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287848025] [2022-01-19 07:08:20,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:08:20,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 07:08:20,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:08:20,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 07:08:20,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-01-19 07:08:20,604 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2022-01-19 07:08:20,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 727 transitions, 15187 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 0 states have call successors, (0), 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 07:08:20,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:08:20,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2022-01-19 07:08:20,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:08:52,983 INFO L129 PetriNetUnfolder]: 35955/94912 cut-off events. [2022-01-19 07:08:52,983 INFO L130 PetriNetUnfolder]: For 1138539/1139981 co-relation queries the response was YES. Received shutdown request... [2022-01-19 07:08:58,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 338830 conditions, 94912 events. 35955/94912 cut-off events. For 1138539/1139981 co-relation queries the response was YES. Maximal size of possible extension queue 3688. Compared 1314523 event pairs, 16668 based on Foata normal form. 532/88934 useless extension candidates. Maximal degree in co-relation 338624. Up to 22987 conditions per place. [2022-01-19 07:08:58,407 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 07:08:58,844 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 338 selfloop transitions, 304 changer transitions 0/844 dead transitions. [2022-01-19 07:08:58,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 664 places, 844 transitions, 17018 flow [2022-01-19 07:08:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 07:08:58,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 07:08:58,848 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 07:08:58,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-19 07:08:58,849 WARN L594 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type AutomatonWithImplicitSelfloops). [2022-01-19 07:08:58,851 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 07:08:58,851 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 07:08:58,854 INFO L732 BasicCegarLoop]: Path program histogram: [21, 10, 6, 6, 1, 1] [2022-01-19 07:08:58,856 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 07:08:58,856 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 07:08:58,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 07:08:58 BasicIcfg [2022-01-19 07:08:58,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 07:08:58,865 INFO L158 Benchmark]: Toolchain (without parser) took 636312.94ms. Allocated memory was 398.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 344.8MB in the beginning and 8.2GB in the end (delta: -7.8GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. [2022-01-19 07:08:58,865 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 398.5MB. Free memory is still 361.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 07:08:58,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.01ms. Allocated memory is still 398.5MB. Free memory was 344.5MB in the beginning and 369.5MB in the end (delta: -25.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.0GB. [2022-01-19 07:08:58,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.52ms. Allocated memory is still 398.5MB. Free memory was 369.5MB in the beginning and 367.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 07:08:58,866 INFO L158 Benchmark]: Boogie Preprocessor took 22.64ms. Allocated memory is still 398.5MB. Free memory was 367.4MB in the beginning and 366.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 07:08:58,866 INFO L158 Benchmark]: RCFGBuilder took 405.40ms. Allocated memory is still 398.5MB. Free memory was 366.4MB in the beginning and 348.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-19 07:08:58,866 INFO L158 Benchmark]: TraceAbstraction took 635610.93ms. Allocated memory was 398.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 347.5MB in the beginning and 8.2GB in the end (delta: -7.8GB). Peak memory consumption was 8.3GB. Max. memory is 16.0GB. [2022-01-19 07:08:58,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 398.5MB. Free memory is still 361.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 240.01ms. Allocated memory is still 398.5MB. Free memory was 344.5MB in the beginning and 369.5MB in the end (delta: -25.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 29.52ms. Allocated memory is still 398.5MB. Free memory was 369.5MB in the beginning and 367.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.64ms. Allocated memory is still 398.5MB. Free memory was 367.4MB in the beginning and 366.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 405.40ms. Allocated memory is still 398.5MB. Free memory was 366.4MB in the beginning and 348.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 635610.93ms. Allocated memory was 398.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 347.5MB in the beginning and 8.2GB in the end (delta: -7.8GB). 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: 93]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type AutomatonWithImplicitSelfloops). - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type AutomatonWithImplicitSelfloops). - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type AutomatonWithImplicitSelfloops). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 274 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: 635.5s, OverallIterations: 45, TraceHistogramMax: 5, PathProgramHistogramMax: 21, EmptinessCheckTime: 0.0s, AutomataDifference: 622.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10197 SdHoareTripleChecker+Valid, 9.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10197 mSDsluCounter, 12793 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12266 mSDsCounter, 510 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22184 IncrementalHoareTripleChecker+Invalid, 22694 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 510 mSolverCounterUnsat, 1938 mSDtfsCounter, 22184 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1929 GetRequests, 1016 SyntacticMatches, 1 SemanticMatches, 912 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4027 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15187occurred in iteration=44, InterpolantAutomatonStates: 581, 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, 1.2s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 9935 NumberOfCodeBlocks, 9837 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 10194 ConstructedInterpolants, 0 QuantifiedInterpolants, 33651 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1184 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 51 InterpolantComputations, 43 PerfectInterpolantSequences, 6069/6192 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 [2022-01-19 07:08:58,920 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 !ENTRY org.eclipse.osgi 4 0 2022-01-19 07:08:59.151 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cbb3515f/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cbb3515f/.metadata/.log.