/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 23:00:59,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 23:00:59,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 23:00:59,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 23:00:59,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 23:00:59,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 23:00:59,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 23:00:59,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 23:00:59,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 23:00:59,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 23:00:59,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 23:00:59,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 23:00:59,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 23:00:59,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 23:00:59,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 23:00:59,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 23:00:59,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 23:00:59,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 23:00:59,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 23:00:59,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 23:00:59,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 23:00:59,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 23:00:59,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 23:00:59,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 23:00:59,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 23:00:59,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 23:00:59,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 23:00:59,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 23:00:59,931 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.epf [2022-01-18 23:00:59,955 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 23:00:59,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 23:00:59,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 23:00:59,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 23:00:59,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 23:00:59,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 23:00:59,957 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 23:00:59,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 23:00:59,957 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 23:00:59,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 23:00:59,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 23:00:59,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 23:00:59,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 23:00:59,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:00:59,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 23:00:59,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 23:00:59,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 23:00:59,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 23:00:59,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 23:00:59,960 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 23:00:59,960 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 23:00:59,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 23:01:00,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 23:01:00,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 23:01:00,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 23:01:00,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 23:01:00,148 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 23:01:00,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2022-01-18 23:01:00,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59ddd65f6/dce2d4d8aa7440349a65a1d31c2abcd7/FLAG8624dac8c [2022-01-18 23:01:00,644 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 23:01:00,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2022-01-18 23:01:00,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59ddd65f6/dce2d4d8aa7440349a65a1d31c2abcd7/FLAG8624dac8c [2022-01-18 23:01:01,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59ddd65f6/dce2d4d8aa7440349a65a1d31c2abcd7 [2022-01-18 23:01:01,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 23:01:01,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 23:01:01,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 23:01:01,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 23:01:01,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 23:01:01,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e1ef01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01, skipping insertion in model container [2022-01-18 23:01:01,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 23:01:01,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 23:01:01,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-01-18 23:01:01,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:01:01,637 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 23:01:01,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-01-18 23:01:01,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:01:01,755 INFO L208 MainTranslator]: Completed translation [2022-01-18 23:01:01,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01 WrapperNode [2022-01-18 23:01:01,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 23:01:01,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 23:01:01,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 23:01:01,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 23:01:01,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,799 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-01-18 23:01:01,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 23:01:01,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 23:01:01,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 23:01:01,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 23:01:01,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 23:01:01,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 23:01:01,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 23:01:01,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 23:01:01,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (1/1) ... [2022-01-18 23:01:01,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:01:01,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:01:01,863 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) [2022-01-18 23:01:01,875 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 [2022-01-18 23:01:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 23:01:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 23:01:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 23:01:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 23:01:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-18 23:01:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 23:01:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 23:01:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-01-18 23:01:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-01-18 23:01:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 23:01:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 23:01:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 23:01:01,898 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 23:01:02,105 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 23:01:02,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 23:01:02,252 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 23:01:02,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 23:01:02,259 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 23:01:02,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:01:02 BoogieIcfgContainer [2022-01-18 23:01:02,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 23:01:02,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 23:01:02,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 23:01:02,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 23:01:02,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:01:01" (1/3) ... [2022-01-18 23:01:02,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248bb6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:01:02, skipping insertion in model container [2022-01-18 23:01:02,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:01:01" (2/3) ... [2022-01-18 23:01:02,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248bb6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:01:02, skipping insertion in model container [2022-01-18 23:01:02,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:01:02" (3/3) ... [2022-01-18 23:01:02,265 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-01-18 23:01:02,268 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 23:01:02,268 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-18 23:01:02,268 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 23:01:02,292 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,292 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,292 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,292 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,294 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,294 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,294 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,294 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,294 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,294 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,294 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,294 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,295 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,296 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,296 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,296 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,296 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,296 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,296 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,296 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,296 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,297 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,297 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,297 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,297 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,297 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,297 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,297 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,297 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,298 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,298 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,298 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,298 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,298 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,298 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,298 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,298 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,299 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,300 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,301 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,302 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,302 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,302 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,302 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,302 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,302 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,302 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,302 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,303 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,303 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,303 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,303 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,303 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,303 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,303 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,303 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,304 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,304 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,304 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,304 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,304 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,304 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,304 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,305 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,307 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,308 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,310 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,310 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,310 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,310 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,310 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,310 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,311 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,311 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,311 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,311 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:01:02,313 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 23:01:02,342 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:01:02,346 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 [2022-01-18 23:01:02,346 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-01-18 23:01:02,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 192 places, 194 transitions, 404 flow [2022-01-18 23:01:02,430 INFO L129 PetriNetUnfolder]: 10/239 cut-off events. [2022-01-18 23:01:02,430 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-18 23:01:02,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 239 events. 10/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 390 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-01-18 23:01:02,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 194 transitions, 404 flow [2022-01-18 23:01:02,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 180 transitions, 372 flow [2022-01-18 23:01:02,456 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2022-01-18 23:01:02,457 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:01:02,457 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:02,457 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] [2022-01-18 23:01:02,458 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:02,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash -974822883, now seen corresponding path program 1 times [2022-01-18 23:01:02,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:02,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598130849] [2022-01-18 23:01:02,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:02,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:02,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:02,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:02,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598130849] [2022-01-18 23:01:02,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598130849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:02,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:02,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:01:02,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750796442] [2022-01-18 23:01:02,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:02,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:01:02,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:01:02,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:01:02,828 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 194 [2022-01-18 23:01:02,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 180 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:02,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:02,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 194 [2022-01-18 23:01:02,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:03,111 INFO L129 PetriNetUnfolder]: 361/1044 cut-off events. [2022-01-18 23:01:03,111 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-01-18 23:01:03,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 1044 events. 361/1044 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6087 event pairs, 216 based on Foata normal form. 20/1009 useless extension candidates. Maximal degree in co-relation 1486. Up to 397 conditions per place. [2022-01-18 23:01:03,121 INFO L132 encePairwiseOnDemand]: 172/194 looper letters, 53 selfloop transitions, 17 changer transitions 1/176 dead transitions. [2022-01-18 23:01:03,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 176 transitions, 506 flow [2022-01-18 23:01:03,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 23:01:03,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-18 23:01:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1129 transitions. [2022-01-18 23:01:03,139 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6466208476517755 [2022-01-18 23:01:03,140 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1129 transitions. [2022-01-18 23:01:03,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1129 transitions. [2022-01-18 23:01:03,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:03,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1129 transitions. [2022-01-18 23:01:03,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 125.44444444444444) internal successors, (1129), 9 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,159 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 194.0) internal successors, (1940), 10 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,160 INFO L186 Difference]: Start difference. First operand has 180 places, 180 transitions, 372 flow. Second operand 9 states and 1129 transitions. [2022-01-18 23:01:03,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 176 transitions, 506 flow [2022-01-18 23:01:03,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 176 transitions, 498 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:01:03,170 INFO L242 Difference]: Finished difference. Result has 178 places, 169 transitions, 383 flow [2022-01-18 23:01:03,172 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=383, PETRI_PLACES=178, PETRI_TRANSITIONS=169} [2022-01-18 23:01:03,174 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -2 predicate places. [2022-01-18 23:01:03,174 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 169 transitions, 383 flow [2022-01-18 23:01:03,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,175 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:03,175 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] [2022-01-18 23:01:03,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 23:01:03,176 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:03,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:03,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2102646053, now seen corresponding path program 1 times [2022-01-18 23:01:03,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:03,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72450147] [2022-01-18 23:01:03,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:03,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:03,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:03,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72450147] [2022-01-18 23:01:03,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72450147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:03,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:03,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:01:03,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264907442] [2022-01-18 23:01:03,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:03,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:01:03,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:03,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:01:03,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:01:03,350 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 194 [2022-01-18 23:01:03,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 169 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:03,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 194 [2022-01-18 23:01:03,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:03,538 INFO L129 PetriNetUnfolder]: 361/1014 cut-off events. [2022-01-18 23:01:03,538 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-01-18 23:01:03,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1782 conditions, 1014 events. 361/1014 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5728 event pairs, 120 based on Foata normal form. 1/980 useless extension candidates. Maximal degree in co-relation 881. Up to 261 conditions per place. [2022-01-18 23:01:03,544 INFO L132 encePairwiseOnDemand]: 175/194 looper letters, 61 selfloop transitions, 18 changer transitions 1/184 dead transitions. [2022-01-18 23:01:03,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 184 transitions, 575 flow [2022-01-18 23:01:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 23:01:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-18 23:01:03,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1251 transitions. [2022-01-18 23:01:03,547 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6448453608247423 [2022-01-18 23:01:03,547 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1251 transitions. [2022-01-18 23:01:03,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1251 transitions. [2022-01-18 23:01:03,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:03,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1251 transitions. [2022-01-18 23:01:03,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 125.1) internal successors, (1251), 10 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 194.0) internal successors, (2134), 11 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,553 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 194.0) internal successors, (2134), 11 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,553 INFO L186 Difference]: Start difference. First operand has 178 places, 169 transitions, 383 flow. Second operand 10 states and 1251 transitions. [2022-01-18 23:01:03,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 184 transitions, 575 flow [2022-01-18 23:01:03,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 184 transitions, 546 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-01-18 23:01:03,561 INFO L242 Difference]: Finished difference. Result has 179 places, 168 transitions, 394 flow [2022-01-18 23:01:03,561 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=394, PETRI_PLACES=179, PETRI_TRANSITIONS=168} [2022-01-18 23:01:03,562 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -1 predicate places. [2022-01-18 23:01:03,562 INFO L470 AbstractCegarLoop]: Abstraction has has 179 places, 168 transitions, 394 flow [2022-01-18 23:01:03,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,563 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:03,563 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] [2022-01-18 23:01:03,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 23:01:03,564 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:03,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2061215173, now seen corresponding path program 1 times [2022-01-18 23:01:03,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:03,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140070281] [2022-01-18 23:01:03,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:03,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:03,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:03,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:03,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140070281] [2022-01-18 23:01:03,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140070281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:03,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:03,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:01:03,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212795711] [2022-01-18 23:01:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:03,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:01:03,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:03,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:01:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:01:03,674 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 194 [2022-01-18 23:01:03,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 168 transitions, 394 flow. Second operand has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:03,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:03,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 194 [2022-01-18 23:01:03,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:04,011 INFO L129 PetriNetUnfolder]: 832/2091 cut-off events. [2022-01-18 23:01:04,011 INFO L130 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-01-18 23:01:04,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3834 conditions, 2091 events. 832/2091 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 14032 event pairs, 169 based on Foata normal form. 32/2089 useless extension candidates. Maximal degree in co-relation 1026. Up to 499 conditions per place. [2022-01-18 23:01:04,021 INFO L132 encePairwiseOnDemand]: 173/194 looper letters, 100 selfloop transitions, 49 changer transitions 0/253 dead transitions. [2022-01-18 23:01:04,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 253 transitions, 878 flow [2022-01-18 23:01:04,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 23:01:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-18 23:01:04,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1644 transitions. [2022-01-18 23:01:04,025 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6518636003172086 [2022-01-18 23:01:04,025 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1644 transitions. [2022-01-18 23:01:04,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1644 transitions. [2022-01-18 23:01:04,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:04,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1644 transitions. [2022-01-18 23:01:04,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 126.46153846153847) internal successors, (1644), 13 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 194.0) internal successors, (2716), 14 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,034 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 194.0) internal successors, (2716), 14 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,034 INFO L186 Difference]: Start difference. First operand has 179 places, 168 transitions, 394 flow. Second operand 13 states and 1644 transitions. [2022-01-18 23:01:04,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 253 transitions, 878 flow [2022-01-18 23:01:04,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 253 transitions, 832 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-18 23:01:04,041 INFO L242 Difference]: Finished difference. Result has 191 places, 205 transitions, 664 flow [2022-01-18 23:01:04,042 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=664, PETRI_PLACES=191, PETRI_TRANSITIONS=205} [2022-01-18 23:01:04,043 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 11 predicate places. [2022-01-18 23:01:04,043 INFO L470 AbstractCegarLoop]: Abstraction has has 191 places, 205 transitions, 664 flow [2022-01-18 23:01:04,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,044 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:04,044 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] [2022-01-18 23:01:04,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 23:01:04,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:04,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:04,046 INFO L85 PathProgramCache]: Analyzing trace with hash 856568329, now seen corresponding path program 1 times [2022-01-18 23:01:04,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:04,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273733112] [2022-01-18 23:01:04,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:04,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:04,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:04,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273733112] [2022-01-18 23:01:04,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273733112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:04,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:04,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:01:04,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953310247] [2022-01-18 23:01:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:04,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:01:04,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:01:04,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:01:04,160 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 194 [2022-01-18 23:01:04,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 205 transitions, 664 flow. Second operand has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:04,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 194 [2022-01-18 23:01:04,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:04,580 INFO L129 PetriNetUnfolder]: 1084/2665 cut-off events. [2022-01-18 23:01:04,580 INFO L130 PetriNetUnfolder]: For 10877/10958 co-relation queries the response was YES. [2022-01-18 23:01:04,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9159 conditions, 2665 events. 1084/2665 cut-off events. For 10877/10958 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 19266 event pairs, 218 based on Foata normal form. 47/2678 useless extension candidates. Maximal degree in co-relation 7850. Up to 732 conditions per place. [2022-01-18 23:01:04,598 INFO L132 encePairwiseOnDemand]: 175/194 looper letters, 74 selfloop transitions, 48 changer transitions 69/294 dead transitions. [2022-01-18 23:01:04,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 294 transitions, 1748 flow [2022-01-18 23:01:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:01:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:01:04,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1395 transitions. [2022-01-18 23:01:04,601 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6537019681349578 [2022-01-18 23:01:04,601 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1395 transitions. [2022-01-18 23:01:04,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1395 transitions. [2022-01-18 23:01:04,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:04,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1395 transitions. [2022-01-18 23:01:04,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 126.81818181818181) internal successors, (1395), 11 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,606 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,606 INFO L186 Difference]: Start difference. First operand has 191 places, 205 transitions, 664 flow. Second operand 11 states and 1395 transitions. [2022-01-18 23:01:04,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 294 transitions, 1748 flow [2022-01-18 23:01:04,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 294 transitions, 1748 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-18 23:01:04,625 INFO L242 Difference]: Finished difference. Result has 209 places, 211 transitions, 977 flow [2022-01-18 23:01:04,626 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=977, PETRI_PLACES=209, PETRI_TRANSITIONS=211} [2022-01-18 23:01:04,627 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 29 predicate places. [2022-01-18 23:01:04,627 INFO L470 AbstractCegarLoop]: Abstraction has has 209 places, 211 transitions, 977 flow [2022-01-18 23:01:04,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,627 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:04,628 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] [2022-01-18 23:01:04,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 23:01:04,628 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:04,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:04,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1190557847, now seen corresponding path program 1 times [2022-01-18 23:01:04,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:04,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429473701] [2022-01-18 23:01:04,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:04,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:04,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:04,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429473701] [2022-01-18 23:01:04,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429473701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:04,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:04,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 23:01:04,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123153454] [2022-01-18 23:01:04,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:04,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 23:01:04,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:04,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 23:01:04,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 23:01:04,711 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 194 [2022-01-18 23:01:04,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 211 transitions, 977 flow. Second operand has 5 states, 5 states have (on average 169.2) internal successors, (846), 5 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:04,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 194 [2022-01-18 23:01:04,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:04,748 INFO L129 PetriNetUnfolder]: 4/167 cut-off events. [2022-01-18 23:01:04,748 INFO L130 PetriNetUnfolder]: For 459/531 co-relation queries the response was YES. [2022-01-18 23:01:04,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 167 events. 4/167 cut-off events. For 459/531 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 4 based on Foata normal form. 8/173 useless extension candidates. Maximal degree in co-relation 336. Up to 13 conditions per place. [2022-01-18 23:01:04,749 INFO L132 encePairwiseOnDemand]: 189/194 looper letters, 9 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2022-01-18 23:01:04,750 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 139 transitions, 436 flow [2022-01-18 23:01:04,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 23:01:04,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-18 23:01:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1016 transitions. [2022-01-18 23:01:04,751 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.872852233676976 [2022-01-18 23:01:04,752 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1016 transitions. [2022-01-18 23:01:04,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1016 transitions. [2022-01-18 23:01:04,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:04,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1016 transitions. [2022-01-18 23:01:04,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,755 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 194.0) internal successors, (1358), 7 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,755 INFO L186 Difference]: Start difference. First operand has 209 places, 211 transitions, 977 flow. Second operand 6 states and 1016 transitions. [2022-01-18 23:01:04,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 139 transitions, 436 flow [2022-01-18 23:01:04,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 139 transitions, 316 flow, removed 40 selfloop flow, removed 19 redundant places. [2022-01-18 23:01:04,758 INFO L242 Difference]: Finished difference. Result has 152 places, 139 transitions, 298 flow [2022-01-18 23:01:04,758 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=152, PETRI_TRANSITIONS=139} [2022-01-18 23:01:04,760 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -28 predicate places. [2022-01-18 23:01:04,760 INFO L470 AbstractCegarLoop]: Abstraction has has 152 places, 139 transitions, 298 flow [2022-01-18 23:01:04,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.2) internal successors, (846), 5 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:04,761 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:04,761 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] [2022-01-18 23:01:04,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 23:01:04,761 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:04,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:04,761 INFO L85 PathProgramCache]: Analyzing trace with hash 747769414, now seen corresponding path program 1 times [2022-01-18 23:01:04,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:04,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044414841] [2022-01-18 23:01:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:04,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:05,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:05,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044414841] [2022-01-18 23:01:05,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044414841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:05,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:05,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:01:05,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053040558] [2022-01-18 23:01:05,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:05,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:01:05,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:05,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:01:05,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:01:05,218 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:01:05,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 139 transitions, 298 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:05,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:05,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:01:05,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:05,562 INFO L129 PetriNetUnfolder]: 248/796 cut-off events. [2022-01-18 23:01:05,562 INFO L130 PetriNetUnfolder]: For 82/87 co-relation queries the response was YES. [2022-01-18 23:01:05,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 796 events. 248/796 cut-off events. For 82/87 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4719 event pairs, 72 based on Foata normal form. 12/770 useless extension candidates. Maximal degree in co-relation 1371. Up to 164 conditions per place. [2022-01-18 23:01:05,566 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 67 selfloop transitions, 13 changer transitions 0/184 dead transitions. [2022-01-18 23:01:05,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 184 transitions, 575 flow [2022-01-18 23:01:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:01:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:01:05,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1643 transitions. [2022-01-18 23:01:05,569 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7699156513589503 [2022-01-18 23:01:05,570 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1643 transitions. [2022-01-18 23:01:05,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1643 transitions. [2022-01-18 23:01:05,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:05,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1643 transitions. [2022-01-18 23:01:05,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 149.36363636363637) internal successors, (1643), 11 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:05,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:05,576 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:05,576 INFO L186 Difference]: Start difference. First operand has 152 places, 139 transitions, 298 flow. Second operand 11 states and 1643 transitions. [2022-01-18 23:01:05,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 184 transitions, 575 flow [2022-01-18 23:01:05,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 184 transitions, 568 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-18 23:01:05,579 INFO L242 Difference]: Finished difference. Result has 161 places, 145 transitions, 348 flow [2022-01-18 23:01:05,579 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=348, PETRI_PLACES=161, PETRI_TRANSITIONS=145} [2022-01-18 23:01:05,581 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -19 predicate places. [2022-01-18 23:01:05,581 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 145 transitions, 348 flow [2022-01-18 23:01:05,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:05,582 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:05,582 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] [2022-01-18 23:01:05,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 23:01:05,582 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:05,583 INFO L85 PathProgramCache]: Analyzing trace with hash 426869254, now seen corresponding path program 2 times [2022-01-18 23:01:05,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:05,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122752167] [2022-01-18 23:01:05,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:05,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:05,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:05,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122752167] [2022-01-18 23:01:05,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122752167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:05,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:05,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 23:01:05,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981916721] [2022-01-18 23:01:05,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:05,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 23:01:05,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:05,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 23:01:05,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-18 23:01:05,971 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 194 [2022-01-18 23:01:05,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 145 transitions, 348 flow. Second operand has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:05,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:05,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 194 [2022-01-18 23:01:05,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:06,604 INFO L129 PetriNetUnfolder]: 531/1411 cut-off events. [2022-01-18 23:01:06,604 INFO L130 PetriNetUnfolder]: For 491/495 co-relation queries the response was YES. [2022-01-18 23:01:06,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3065 conditions, 1411 events. 531/1411 cut-off events. For 491/495 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 8710 event pairs, 122 based on Foata normal form. 3/1377 useless extension candidates. Maximal degree in co-relation 3054. Up to 337 conditions per place. [2022-01-18 23:01:06,610 INFO L132 encePairwiseOnDemand]: 169/194 looper letters, 115 selfloop transitions, 27 changer transitions 0/215 dead transitions. [2022-01-18 23:01:06,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 215 transitions, 830 flow [2022-01-18 23:01:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 23:01:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-18 23:01:06,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1748 transitions. [2022-01-18 23:01:06,613 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.530018192844148 [2022-01-18 23:01:06,613 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1748 transitions. [2022-01-18 23:01:06,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1748 transitions. [2022-01-18 23:01:06,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:06,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1748 transitions. [2022-01-18 23:01:06,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 102.82352941176471) internal successors, (1748), 17 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:06,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:06,620 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:06,620 INFO L186 Difference]: Start difference. First operand has 161 places, 145 transitions, 348 flow. Second operand 17 states and 1748 transitions. [2022-01-18 23:01:06,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 215 transitions, 830 flow [2022-01-18 23:01:06,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 215 transitions, 819 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:06,624 INFO L242 Difference]: Finished difference. Result has 179 places, 160 transitions, 486 flow [2022-01-18 23:01:06,624 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=486, PETRI_PLACES=179, PETRI_TRANSITIONS=160} [2022-01-18 23:01:06,624 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -1 predicate places. [2022-01-18 23:01:06,625 INFO L470 AbstractCegarLoop]: Abstraction has has 179 places, 160 transitions, 486 flow [2022-01-18 23:01:06,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:06,625 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:06,625 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] [2022-01-18 23:01:06,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 23:01:06,626 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:06,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:06,626 INFO L85 PathProgramCache]: Analyzing trace with hash 19274526, now seen corresponding path program 3 times [2022-01-18 23:01:06,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:06,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082594923] [2022-01-18 23:01:06,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:06,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:06,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:06,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:06,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082594923] [2022-01-18 23:01:06,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082594923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:06,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:06,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 23:01:06,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952880262] [2022-01-18 23:01:06,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:06,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 23:01:06,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:06,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 23:01:06,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-01-18 23:01:06,963 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 194 [2022-01-18 23:01:06,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 160 transitions, 486 flow. Second operand has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:06,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:06,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 194 [2022-01-18 23:01:06,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:07,696 INFO L129 PetriNetUnfolder]: 660/1873 cut-off events. [2022-01-18 23:01:07,696 INFO L130 PetriNetUnfolder]: For 1304/1320 co-relation queries the response was YES. [2022-01-18 23:01:07,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4530 conditions, 1873 events. 660/1873 cut-off events. For 1304/1320 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 13014 event pairs, 86 based on Foata normal form. 10/1844 useless extension candidates. Maximal degree in co-relation 4512. Up to 352 conditions per place. [2022-01-18 23:01:07,707 INFO L132 encePairwiseOnDemand]: 169/194 looper letters, 144 selfloop transitions, 42 changer transitions 0/259 dead transitions. [2022-01-18 23:01:07,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 259 transitions, 1230 flow [2022-01-18 23:01:07,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 23:01:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-18 23:01:07,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1967 transitions. [2022-01-18 23:01:07,711 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5336408030385241 [2022-01-18 23:01:07,711 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1967 transitions. [2022-01-18 23:01:07,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1967 transitions. [2022-01-18 23:01:07,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:07,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1967 transitions. [2022-01-18 23:01:07,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 103.52631578947368) internal successors, (1967), 19 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:07,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:07,719 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:07,719 INFO L186 Difference]: Start difference. First operand has 179 places, 160 transitions, 486 flow. Second operand 19 states and 1967 transitions. [2022-01-18 23:01:07,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 259 transitions, 1230 flow [2022-01-18 23:01:07,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 259 transitions, 1214 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:07,725 INFO L242 Difference]: Finished difference. Result has 197 places, 179 transitions, 717 flow [2022-01-18 23:01:07,726 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=717, PETRI_PLACES=197, PETRI_TRANSITIONS=179} [2022-01-18 23:01:07,726 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 17 predicate places. [2022-01-18 23:01:07,726 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 179 transitions, 717 flow [2022-01-18 23:01:07,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:07,727 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:07,727 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] [2022-01-18 23:01:07,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 23:01:07,727 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:07,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:07,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1128163498, now seen corresponding path program 4 times [2022-01-18 23:01:07,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:07,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261107634] [2022-01-18 23:01:07,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:07,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:08,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:08,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:08,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261107634] [2022-01-18 23:01:08,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261107634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:08,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:08,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 23:01:08,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689086752] [2022-01-18 23:01:08,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:08,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 23:01:08,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:08,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 23:01:08,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-01-18 23:01:08,015 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 194 [2022-01-18 23:01:08,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 179 transitions, 717 flow. Second operand has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:08,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:08,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 194 [2022-01-18 23:01:08,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:08,706 INFO L129 PetriNetUnfolder]: 805/2363 cut-off events. [2022-01-18 23:01:08,707 INFO L130 PetriNetUnfolder]: For 2920/2930 co-relation queries the response was YES. [2022-01-18 23:01:08,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6187 conditions, 2363 events. 805/2363 cut-off events. For 2920/2930 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 17660 event pairs, 272 based on Foata normal form. 6/2315 useless extension candidates. Maximal degree in co-relation 6162. Up to 667 conditions per place. [2022-01-18 23:01:08,723 INFO L132 encePairwiseOnDemand]: 171/194 looper letters, 156 selfloop transitions, 42 changer transitions 0/271 dead transitions. [2022-01-18 23:01:08,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 271 transitions, 1541 flow [2022-01-18 23:01:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 23:01:08,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-18 23:01:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1958 transitions. [2022-01-18 23:01:08,727 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5311991318502441 [2022-01-18 23:01:08,727 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1958 transitions. [2022-01-18 23:01:08,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1958 transitions. [2022-01-18 23:01:08,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:08,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1958 transitions. [2022-01-18 23:01:08,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 103.05263157894737) internal successors, (1958), 19 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:08,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:08,746 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:08,746 INFO L186 Difference]: Start difference. First operand has 197 places, 179 transitions, 717 flow. Second operand 19 states and 1958 transitions. [2022-01-18 23:01:08,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 271 transitions, 1541 flow [2022-01-18 23:01:08,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 271 transitions, 1490 flow, removed 17 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:08,757 INFO L242 Difference]: Finished difference. Result has 218 places, 197 transitions, 965 flow [2022-01-18 23:01:08,757 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=965, PETRI_PLACES=218, PETRI_TRANSITIONS=197} [2022-01-18 23:01:08,757 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 38 predicate places. [2022-01-18 23:01:08,758 INFO L470 AbstractCegarLoop]: Abstraction has has 218 places, 197 transitions, 965 flow [2022-01-18 23:01:08,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:08,758 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:08,758 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] [2022-01-18 23:01:08,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 23:01:08,759 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:08,759 INFO L85 PathProgramCache]: Analyzing trace with hash 862333556, now seen corresponding path program 5 times [2022-01-18 23:01:08,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:08,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327373181] [2022-01-18 23:01:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:08,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:09,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:09,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327373181] [2022-01-18 23:01:09,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327373181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:09,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:09,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 23:01:09,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928460216] [2022-01-18 23:01:09,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:09,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 23:01:09,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:09,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 23:01:09,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-01-18 23:01:09,079 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 194 [2022-01-18 23:01:09,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 197 transitions, 965 flow. Second operand has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:09,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:09,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 194 [2022-01-18 23:01:09,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:09,853 INFO L129 PetriNetUnfolder]: 807/2409 cut-off events. [2022-01-18 23:01:09,853 INFO L130 PetriNetUnfolder]: For 4250/4261 co-relation queries the response was YES. [2022-01-18 23:01:09,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6632 conditions, 2409 events. 807/2409 cut-off events. For 4250/4261 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 17965 event pairs, 374 based on Foata normal form. 5/2359 useless extension candidates. Maximal degree in co-relation 6597. Up to 842 conditions per place. [2022-01-18 23:01:09,870 INFO L132 encePairwiseOnDemand]: 172/194 looper letters, 148 selfloop transitions, 47 changer transitions 0/268 dead transitions. [2022-01-18 23:01:09,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 268 transitions, 1701 flow [2022-01-18 23:01:09,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 23:01:09,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-18 23:01:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1843 transitions. [2022-01-18 23:01:09,873 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2022-01-18 23:01:09,873 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1843 transitions. [2022-01-18 23:01:09,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1843 transitions. [2022-01-18 23:01:09,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:09,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1843 transitions. [2022-01-18 23:01:09,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 102.38888888888889) internal successors, (1843), 18 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:09,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:09,878 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 194.0) internal successors, (3686), 19 states have internal predecessors, (3686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:09,878 INFO L186 Difference]: Start difference. First operand has 218 places, 197 transitions, 965 flow. Second operand 18 states and 1843 transitions. [2022-01-18 23:01:09,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 268 transitions, 1701 flow [2022-01-18 23:01:09,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 268 transitions, 1670 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-01-18 23:01:09,890 INFO L242 Difference]: Finished difference. Result has 240 places, 210 transitions, 1208 flow [2022-01-18 23:01:09,890 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1208, PETRI_PLACES=240, PETRI_TRANSITIONS=210} [2022-01-18 23:01:09,891 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 60 predicate places. [2022-01-18 23:01:09,891 INFO L470 AbstractCegarLoop]: Abstraction has has 240 places, 210 transitions, 1208 flow [2022-01-18 23:01:09,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:09,891 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:09,891 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] [2022-01-18 23:01:09,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 23:01:09,892 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:09,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:09,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1039153168, now seen corresponding path program 6 times [2022-01-18 23:01:09,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:09,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58735876] [2022-01-18 23:01:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:09,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:10,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:10,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:10,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58735876] [2022-01-18 23:01:10,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58735876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:10,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:10,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 23:01:10,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482178001] [2022-01-18 23:01:10,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:10,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 23:01:10,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:10,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 23:01:10,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2022-01-18 23:01:10,337 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:01:10,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 210 transitions, 1208 flow. Second operand has 19 states, 19 states have (on average 94.42105263157895) internal successors, (1794), 19 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:10,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:10,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:01:10,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:12,038 INFO L129 PetriNetUnfolder]: 2191/5485 cut-off events. [2022-01-18 23:01:12,038 INFO L130 PetriNetUnfolder]: For 13617/13633 co-relation queries the response was YES. [2022-01-18 23:01:12,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16286 conditions, 5485 events. 2191/5485 cut-off events. For 13617/13633 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 46980 event pairs, 419 based on Foata normal form. 17/5418 useless extension candidates. Maximal degree in co-relation 16240. Up to 1883 conditions per place. [2022-01-18 23:01:12,081 INFO L132 encePairwiseOnDemand]: 168/194 looper letters, 225 selfloop transitions, 71 changer transitions 0/363 dead transitions. [2022-01-18 23:01:12,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 363 transitions, 2901 flow [2022-01-18 23:01:12,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 23:01:12,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-18 23:01:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1907 transitions. [2022-01-18 23:01:12,083 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5173629951166576 [2022-01-18 23:01:12,083 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1907 transitions. [2022-01-18 23:01:12,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1907 transitions. [2022-01-18 23:01:12,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:12,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1907 transitions. [2022-01-18 23:01:12,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 100.36842105263158) internal successors, (1907), 19 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:12,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:12,089 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:12,089 INFO L186 Difference]: Start difference. First operand has 240 places, 210 transitions, 1208 flow. Second operand 19 states and 1907 transitions. [2022-01-18 23:01:12,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 363 transitions, 2901 flow [2022-01-18 23:01:12,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 363 transitions, 2846 flow, removed 21 selfloop flow, removed 5 redundant places. [2022-01-18 23:01:12,121 INFO L242 Difference]: Finished difference. Result has 263 places, 249 transitions, 1886 flow [2022-01-18 23:01:12,121 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=1167, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1886, PETRI_PLACES=263, PETRI_TRANSITIONS=249} [2022-01-18 23:01:12,122 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 83 predicate places. [2022-01-18 23:01:12,122 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 249 transitions, 1886 flow [2022-01-18 23:01:12,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 94.42105263157895) internal successors, (1794), 19 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:12,122 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:12,122 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] [2022-01-18 23:01:12,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 23:01:12,123 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:12,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:12,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1421695176, now seen corresponding path program 7 times [2022-01-18 23:01:12,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:12,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163850011] [2022-01-18 23:01:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:12,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:12,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:12,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:12,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163850011] [2022-01-18 23:01:12,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163850011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:12,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:12,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 23:01:12,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376904110] [2022-01-18 23:01:12,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:12,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 23:01:12,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:12,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 23:01:12,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-01-18 23:01:12,387 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 194 [2022-01-18 23:01:12,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 249 transitions, 1886 flow. Second operand has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:12,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:12,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 194 [2022-01-18 23:01:12,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:13,667 INFO L129 PetriNetUnfolder]: 2333/6702 cut-off events. [2022-01-18 23:01:13,668 INFO L130 PetriNetUnfolder]: For 24149/24297 co-relation queries the response was YES. [2022-01-18 23:01:13,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20718 conditions, 6702 events. 2333/6702 cut-off events. For 24149/24297 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 65039 event pairs, 693 based on Foata normal form. 77/6625 useless extension candidates. Maximal degree in co-relation 20663. Up to 2160 conditions per place. [2022-01-18 23:01:13,714 INFO L132 encePairwiseOnDemand]: 169/194 looper letters, 212 selfloop transitions, 79 changer transitions 0/370 dead transitions. [2022-01-18 23:01:13,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 370 transitions, 3719 flow [2022-01-18 23:01:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 23:01:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-18 23:01:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1745 transitions. [2022-01-18 23:01:13,717 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5291085506367496 [2022-01-18 23:01:13,717 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1745 transitions. [2022-01-18 23:01:13,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1745 transitions. [2022-01-18 23:01:13,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:13,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1745 transitions. [2022-01-18 23:01:13,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 102.6470588235294) internal successors, (1745), 17 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:13,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:13,723 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 194.0) internal successors, (3492), 18 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:13,723 INFO L186 Difference]: Start difference. First operand has 263 places, 249 transitions, 1886 flow. Second operand 17 states and 1745 transitions. [2022-01-18 23:01:13,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 370 transitions, 3719 flow [2022-01-18 23:01:13,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 370 transitions, 3656 flow, removed 22 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:13,788 INFO L242 Difference]: Finished difference. Result has 281 places, 284 transitions, 2583 flow [2022-01-18 23:01:13,789 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=1845, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2583, PETRI_PLACES=281, PETRI_TRANSITIONS=284} [2022-01-18 23:01:13,789 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 101 predicate places. [2022-01-18 23:01:13,789 INFO L470 AbstractCegarLoop]: Abstraction has has 281 places, 284 transitions, 2583 flow [2022-01-18 23:01:13,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:13,790 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:13,790 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] [2022-01-18 23:01:13,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 23:01:13,790 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:13,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash 300628468, now seen corresponding path program 8 times [2022-01-18 23:01:13,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:13,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358973841] [2022-01-18 23:01:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:13,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:14,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:14,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358973841] [2022-01-18 23:01:14,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358973841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:14,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:14,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 23:01:14,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219709858] [2022-01-18 23:01:14,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:14,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 23:01:14,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:14,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 23:01:14,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 23:01:14,111 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 194 [2022-01-18 23:01:14,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 284 transitions, 2583 flow. Second operand has 13 states, 13 states have (on average 137.15384615384616) internal successors, (1783), 13 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:14,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:14,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 194 [2022-01-18 23:01:14,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:15,269 INFO L129 PetriNetUnfolder]: 1918/6753 cut-off events. [2022-01-18 23:01:15,269 INFO L130 PetriNetUnfolder]: For 33284/33321 co-relation queries the response was YES. [2022-01-18 23:01:15,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23382 conditions, 6753 events. 1918/6753 cut-off events. For 33284/33321 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 72273 event pairs, 567 based on Foata normal form. 32/6635 useless extension candidates. Maximal degree in co-relation 23319. Up to 1328 conditions per place. [2022-01-18 23:01:15,323 INFO L132 encePairwiseOnDemand]: 180/194 looper letters, 178 selfloop transitions, 38 changer transitions 0/401 dead transitions. [2022-01-18 23:01:15,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 401 transitions, 4335 flow [2022-01-18 23:01:15,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 23:01:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-18 23:01:15,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1977 transitions. [2022-01-18 23:01:15,381 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7279086892488954 [2022-01-18 23:01:15,381 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1977 transitions. [2022-01-18 23:01:15,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1977 transitions. [2022-01-18 23:01:15,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:15,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1977 transitions. [2022-01-18 23:01:15,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 141.21428571428572) internal successors, (1977), 14 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:15,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 194.0) internal successors, (2910), 15 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:15,386 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 194.0) internal successors, (2910), 15 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:15,386 INFO L186 Difference]: Start difference. First operand has 281 places, 284 transitions, 2583 flow. Second operand 14 states and 1977 transitions. [2022-01-18 23:01:15,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 401 transitions, 4335 flow [2022-01-18 23:01:15,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 401 transitions, 4273 flow, removed 20 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:15,485 INFO L242 Difference]: Finished difference. Result has 293 places, 299 transitions, 2827 flow [2022-01-18 23:01:15,486 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=2528, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2827, PETRI_PLACES=293, PETRI_TRANSITIONS=299} [2022-01-18 23:01:15,487 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 113 predicate places. [2022-01-18 23:01:15,487 INFO L470 AbstractCegarLoop]: Abstraction has has 293 places, 299 transitions, 2827 flow [2022-01-18 23:01:15,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 137.15384615384616) internal successors, (1783), 13 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:15,487 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:15,487 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] [2022-01-18 23:01:15,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 23:01:15,487 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:15,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:15,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1458279378, now seen corresponding path program 9 times [2022-01-18 23:01:15,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:15,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805165534] [2022-01-18 23:01:15,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:15,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:15,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:15,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:15,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805165534] [2022-01-18 23:01:15,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805165534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:15,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:15,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:01:15,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374191314] [2022-01-18 23:01:15,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:15,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:01:15,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:15,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:01:15,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:01:15,755 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:01:15,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 299 transitions, 2827 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:15,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:15,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:01:15,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:16,820 INFO L129 PetriNetUnfolder]: 1561/5944 cut-off events. [2022-01-18 23:01:16,821 INFO L130 PetriNetUnfolder]: For 29559/29839 co-relation queries the response was YES. [2022-01-18 23:01:16,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21395 conditions, 5944 events. 1561/5944 cut-off events. For 29559/29839 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 64363 event pairs, 337 based on Foata normal form. 112/5852 useless extension candidates. Maximal degree in co-relation 21326. Up to 1892 conditions per place. [2022-01-18 23:01:16,871 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 143 selfloop transitions, 22 changer transitions 0/383 dead transitions. [2022-01-18 23:01:16,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 383 transitions, 4091 flow [2022-01-18 23:01:16,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:01:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:01:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1643 transitions. [2022-01-18 23:01:16,873 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7699156513589503 [2022-01-18 23:01:16,873 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1643 transitions. [2022-01-18 23:01:16,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1643 transitions. [2022-01-18 23:01:16,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:16,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1643 transitions. [2022-01-18 23:01:16,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 149.36363636363637) internal successors, (1643), 11 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:16,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:16,877 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:16,877 INFO L186 Difference]: Start difference. First operand has 293 places, 299 transitions, 2827 flow. Second operand 11 states and 1643 transitions. [2022-01-18 23:01:16,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 383 transitions, 4091 flow [2022-01-18 23:01:16,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 383 transitions, 4053 flow, removed 13 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:16,970 INFO L242 Difference]: Finished difference. Result has 300 places, 309 transitions, 3004 flow [2022-01-18 23:01:16,970 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=2807, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3004, PETRI_PLACES=300, PETRI_TRANSITIONS=309} [2022-01-18 23:01:16,970 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 120 predicate places. [2022-01-18 23:01:16,971 INFO L470 AbstractCegarLoop]: Abstraction has has 300 places, 309 transitions, 3004 flow [2022-01-18 23:01:16,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:16,971 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:16,971 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] [2022-01-18 23:01:16,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 23:01:16,971 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:16,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:16,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1491803648, now seen corresponding path program 10 times [2022-01-18 23:01:16,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:16,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127890662] [2022-01-18 23:01:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:16,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:17,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:17,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127890662] [2022-01-18 23:01:17,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127890662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:17,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:17,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 23:01:17,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474777598] [2022-01-18 23:01:17,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:17,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 23:01:17,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:17,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 23:01:17,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-01-18 23:01:17,268 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 194 [2022-01-18 23:01:17,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 309 transitions, 3004 flow. Second operand has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:17,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:17,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 194 [2022-01-18 23:01:17,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:19,465 INFO L129 PetriNetUnfolder]: 3654/11628 cut-off events. [2022-01-18 23:01:19,465 INFO L130 PetriNetUnfolder]: For 59572/60042 co-relation queries the response was YES. [2022-01-18 23:01:19,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43132 conditions, 11628 events. 3654/11628 cut-off events. For 59572/60042 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 130476 event pairs, 764 based on Foata normal form. 303/11694 useless extension candidates. Maximal degree in co-relation 43060. Up to 2440 conditions per place. [2022-01-18 23:01:19,551 INFO L132 encePairwiseOnDemand]: 169/194 looper letters, 305 selfloop transitions, 135 changer transitions 0/530 dead transitions. [2022-01-18 23:01:19,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 530 transitions, 6484 flow [2022-01-18 23:01:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 23:01:19,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-18 23:01:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1964 transitions. [2022-01-18 23:01:19,553 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5328269126424309 [2022-01-18 23:01:19,553 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1964 transitions. [2022-01-18 23:01:19,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1964 transitions. [2022-01-18 23:01:19,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:19,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1964 transitions. [2022-01-18 23:01:19,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 103.36842105263158) internal successors, (1964), 19 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:19,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:19,559 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:19,559 INFO L186 Difference]: Start difference. First operand has 300 places, 309 transitions, 3004 flow. Second operand 19 states and 1964 transitions. [2022-01-18 23:01:19,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 530 transitions, 6484 flow [2022-01-18 23:01:19,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 530 transitions, 6451 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:19,749 INFO L242 Difference]: Finished difference. Result has 321 places, 376 transitions, 4587 flow [2022-01-18 23:01:19,750 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=2983, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4587, PETRI_PLACES=321, PETRI_TRANSITIONS=376} [2022-01-18 23:01:19,750 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 141 predicate places. [2022-01-18 23:01:19,750 INFO L470 AbstractCegarLoop]: Abstraction has has 321 places, 376 transitions, 4587 flow [2022-01-18 23:01:19,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 99.06666666666666) internal successors, (1486), 15 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:19,751 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:19,751 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] [2022-01-18 23:01:19,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 23:01:19,751 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:19,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1976862002, now seen corresponding path program 11 times [2022-01-18 23:01:19,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:19,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75672876] [2022-01-18 23:01:19,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:19,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:20,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:20,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75672876] [2022-01-18 23:01:20,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75672876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:20,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:20,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 23:01:20,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106500274] [2022-01-18 23:01:20,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:20,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:01:20,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:20,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:01:20,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:01:20,139 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 194 [2022-01-18 23:01:20,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 376 transitions, 4587 flow. Second operand has 20 states, 20 states have (on average 97.1) internal successors, (1942), 20 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:20,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:20,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 194 [2022-01-18 23:01:20,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:23,526 INFO L129 PetriNetUnfolder]: 4245/13927 cut-off events. [2022-01-18 23:01:23,526 INFO L130 PetriNetUnfolder]: For 87819/88358 co-relation queries the response was YES. [2022-01-18 23:01:23,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54283 conditions, 13927 events. 4245/13927 cut-off events. For 87819/88358 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 162274 event pairs, 2315 based on Foata normal form. 336/14002 useless extension candidates. Maximal degree in co-relation 54202. Up to 5861 conditions per place. [2022-01-18 23:01:23,630 INFO L132 encePairwiseOnDemand]: 166/194 looper letters, 271 selfloop transitions, 141 changer transitions 0/501 dead transitions. [2022-01-18 23:01:23,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 501 transitions, 6940 flow [2022-01-18 23:01:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 23:01:23,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-01-18 23:01:23,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2669 transitions. [2022-01-18 23:01:23,634 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5095456281023292 [2022-01-18 23:01:23,634 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2669 transitions. [2022-01-18 23:01:23,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2669 transitions. [2022-01-18 23:01:23,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:23,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2669 transitions. [2022-01-18 23:01:23,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 98.85185185185185) internal successors, (2669), 27 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:23,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 194.0) internal successors, (5432), 28 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:23,642 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 194.0) internal successors, (5432), 28 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:23,642 INFO L186 Difference]: Start difference. First operand has 321 places, 376 transitions, 4587 flow. Second operand 27 states and 2669 transitions. [2022-01-18 23:01:23,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 501 transitions, 6940 flow [2022-01-18 23:01:23,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 501 transitions, 6836 flow, removed 37 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:23,949 INFO L242 Difference]: Finished difference. Result has 351 places, 407 transitions, 5419 flow [2022-01-18 23:01:23,949 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=4509, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5419, PETRI_PLACES=351, PETRI_TRANSITIONS=407} [2022-01-18 23:01:23,949 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 171 predicate places. [2022-01-18 23:01:23,949 INFO L470 AbstractCegarLoop]: Abstraction has has 351 places, 407 transitions, 5419 flow [2022-01-18 23:01:23,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 97.1) internal successors, (1942), 20 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:23,950 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:23,950 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] [2022-01-18 23:01:23,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 23:01:23,950 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:23,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:23,950 INFO L85 PathProgramCache]: Analyzing trace with hash 5976500, now seen corresponding path program 12 times [2022-01-18 23:01:23,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:23,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793862630] [2022-01-18 23:01:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:23,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:24,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:24,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793862630] [2022-01-18 23:01:24,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793862630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:24,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:24,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:01:24,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432174508] [2022-01-18 23:01:24,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:24,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:01:24,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:24,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:01:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:01:24,166 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:01:24,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 407 transitions, 5419 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:24,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:24,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:01:24,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:26,480 INFO L129 PetriNetUnfolder]: 2512/10951 cut-off events. [2022-01-18 23:01:26,480 INFO L130 PetriNetUnfolder]: For 84817/85221 co-relation queries the response was YES. [2022-01-18 23:01:26,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45511 conditions, 10951 events. 2512/10951 cut-off events. For 84817/85221 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 136955 event pairs, 737 based on Foata normal form. 54/10764 useless extension candidates. Maximal degree in co-relation 45419. Up to 4243 conditions per place. [2022-01-18 23:01:26,573 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 177 selfloop transitions, 35 changer transitions 0/514 dead transitions. [2022-01-18 23:01:26,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 514 transitions, 6998 flow [2022-01-18 23:01:26,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:01:26,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:01:26,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1651 transitions. [2022-01-18 23:01:26,574 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7736644798500468 [2022-01-18 23:01:26,575 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1651 transitions. [2022-01-18 23:01:26,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1651 transitions. [2022-01-18 23:01:26,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:26,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1651 transitions. [2022-01-18 23:01:26,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 150.0909090909091) internal successors, (1651), 11 states have internal predecessors, (1651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:26,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:26,578 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:26,578 INFO L186 Difference]: Start difference. First operand has 351 places, 407 transitions, 5419 flow. Second operand 11 states and 1651 transitions. [2022-01-18 23:01:26,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 514 transitions, 6998 flow [2022-01-18 23:01:26,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 514 transitions, 6887 flow, removed 43 selfloop flow, removed 12 redundant places. [2022-01-18 23:01:26,941 INFO L242 Difference]: Finished difference. Result has 353 places, 416 transitions, 5551 flow [2022-01-18 23:01:26,942 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=5330, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5551, PETRI_PLACES=353, PETRI_TRANSITIONS=416} [2022-01-18 23:01:26,942 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 173 predicate places. [2022-01-18 23:01:26,942 INFO L470 AbstractCegarLoop]: Abstraction has has 353 places, 416 transitions, 5551 flow [2022-01-18 23:01:26,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:26,942 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:26,943 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] [2022-01-18 23:01:26,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 23:01:26,943 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:26,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:26,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1436173980, now seen corresponding path program 13 times [2022-01-18 23:01:26,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:26,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837751463] [2022-01-18 23:01:26,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:26,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:27,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:27,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837751463] [2022-01-18 23:01:27,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837751463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:27,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:27,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:01:27,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510082788] [2022-01-18 23:01:27,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:27,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:01:27,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:01:27,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:01:27,162 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:01:27,211 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 416 transitions, 5551 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:27,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:27,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:01:27,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:29,633 INFO L129 PetriNetUnfolder]: 2491/11147 cut-off events. [2022-01-18 23:01:29,633 INFO L130 PetriNetUnfolder]: For 94087/94478 co-relation queries the response was YES. [2022-01-18 23:01:29,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47482 conditions, 11147 events. 2491/11147 cut-off events. For 94087/94478 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 139297 event pairs, 934 based on Foata normal form. 91/10955 useless extension candidates. Maximal degree in co-relation 47386. Up to 4154 conditions per place. [2022-01-18 23:01:29,730 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 187 selfloop transitions, 30 changer transitions 0/519 dead transitions. [2022-01-18 23:01:29,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 519 transitions, 7167 flow [2022-01-18 23:01:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:01:29,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:01:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1650 transitions. [2022-01-18 23:01:29,736 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7731958762886598 [2022-01-18 23:01:29,736 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1650 transitions. [2022-01-18 23:01:29,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1650 transitions. [2022-01-18 23:01:29,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:29,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1650 transitions. [2022-01-18 23:01:29,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 150.0) internal successors, (1650), 11 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:29,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:29,744 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:29,744 INFO L186 Difference]: Start difference. First operand has 353 places, 416 transitions, 5551 flow. Second operand 11 states and 1650 transitions. [2022-01-18 23:01:29,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 519 transitions, 7167 flow [2022-01-18 23:01:30,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 519 transitions, 7093 flow, removed 13 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:30,099 INFO L242 Difference]: Finished difference. Result has 360 places, 424 transitions, 5707 flow [2022-01-18 23:01:30,099 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=5493, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5707, PETRI_PLACES=360, PETRI_TRANSITIONS=424} [2022-01-18 23:01:30,100 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 180 predicate places. [2022-01-18 23:01:30,100 INFO L470 AbstractCegarLoop]: Abstraction has has 360 places, 424 transitions, 5707 flow [2022-01-18 23:01:30,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:30,100 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:30,100 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] [2022-01-18 23:01:30,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 23:01:30,100 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:30,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:30,101 INFO L85 PathProgramCache]: Analyzing trace with hash -459340894, now seen corresponding path program 14 times [2022-01-18 23:01:30,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:30,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747355147] [2022-01-18 23:01:30,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:30,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:30,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:30,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747355147] [2022-01-18 23:01:30,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747355147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:30,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:30,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 23:01:30,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212093911] [2022-01-18 23:01:30,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:30,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 23:01:30,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:30,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 23:01:30,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-01-18 23:01:30,536 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 194 [2022-01-18 23:01:30,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 424 transitions, 5707 flow. Second operand has 20 states, 20 states have (on average 97.1) internal successors, (1942), 20 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:30,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:30,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 194 [2022-01-18 23:01:30,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:34,965 INFO L129 PetriNetUnfolder]: 5104/17376 cut-off events. [2022-01-18 23:01:34,965 INFO L130 PetriNetUnfolder]: For 143707/144268 co-relation queries the response was YES. [2022-01-18 23:01:35,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73546 conditions, 17376 events. 5104/17376 cut-off events. For 143707/144268 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 211317 event pairs, 2133 based on Foata normal form. 347/17461 useless extension candidates. Maximal degree in co-relation 73447. Up to 4587 conditions per place. [2022-01-18 23:01:35,159 INFO L132 encePairwiseOnDemand]: 165/194 looper letters, 355 selfloop transitions, 172 changer transitions 0/624 dead transitions. [2022-01-18 23:01:35,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 624 transitions, 9434 flow [2022-01-18 23:01:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 23:01:35,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-01-18 23:01:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2785 transitions. [2022-01-18 23:01:35,162 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5127025036818851 [2022-01-18 23:01:35,162 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 2785 transitions. [2022-01-18 23:01:35,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 2785 transitions. [2022-01-18 23:01:35,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:35,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 2785 transitions. [2022-01-18 23:01:35,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 99.46428571428571) internal successors, (2785), 28 states have internal predecessors, (2785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:35,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 194.0) internal successors, (5626), 29 states have internal predecessors, (5626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:35,170 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 194.0) internal successors, (5626), 29 states have internal predecessors, (5626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:35,170 INFO L186 Difference]: Start difference. First operand has 360 places, 424 transitions, 5707 flow. Second operand 28 states and 2785 transitions. [2022-01-18 23:01:35,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 624 transitions, 9434 flow [2022-01-18 23:01:35,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 624 transitions, 9372 flow, removed 15 selfloop flow, removed 6 redundant places. [2022-01-18 23:01:35,805 INFO L242 Difference]: Finished difference. Result has 390 places, 474 transitions, 7284 flow [2022-01-18 23:01:35,806 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=5665, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=7284, PETRI_PLACES=390, PETRI_TRANSITIONS=474} [2022-01-18 23:01:35,806 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 210 predicate places. [2022-01-18 23:01:35,806 INFO L470 AbstractCegarLoop]: Abstraction has has 390 places, 474 transitions, 7284 flow [2022-01-18 23:01:35,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 97.1) internal successors, (1942), 20 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:35,807 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:35,807 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] [2022-01-18 23:01:35,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 23:01:35,807 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:35,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:35,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1173799836, now seen corresponding path program 15 times [2022-01-18 23:01:35,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:35,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913139472] [2022-01-18 23:01:35,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:35,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:36,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:36,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:36,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913139472] [2022-01-18 23:01:36,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913139472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:36,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:36,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:01:36,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105678299] [2022-01-18 23:01:36,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:36,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:01:36,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:36,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:01:36,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:01:36,031 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:01:36,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 474 transitions, 7284 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:36,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:36,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:01:36,032 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:38,643 INFO L129 PetriNetUnfolder]: 2478/11964 cut-off events. [2022-01-18 23:01:38,643 INFO L130 PetriNetUnfolder]: For 120651/121026 co-relation queries the response was YES. [2022-01-18 23:01:38,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53426 conditions, 11964 events. 2478/11964 cut-off events. For 120651/121026 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 153453 event pairs, 1111 based on Foata normal form. 84/11795 useless extension candidates. Maximal degree in co-relation 53318. Up to 2918 conditions per place. [2022-01-18 23:01:38,765 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 215 selfloop transitions, 38 changer transitions 0/597 dead transitions. [2022-01-18 23:01:38,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 597 transitions, 9242 flow [2022-01-18 23:01:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:01:38,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:01:38,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1655 transitions. [2022-01-18 23:01:38,767 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7755388940955952 [2022-01-18 23:01:38,767 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1655 transitions. [2022-01-18 23:01:38,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1655 transitions. [2022-01-18 23:01:38,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:38,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1655 transitions. [2022-01-18 23:01:38,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 150.45454545454547) internal successors, (1655), 11 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:38,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:38,771 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:38,771 INFO L186 Difference]: Start difference. First operand has 390 places, 474 transitions, 7284 flow. Second operand 11 states and 1655 transitions. [2022-01-18 23:01:38,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 597 transitions, 9242 flow [2022-01-18 23:01:39,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 597 transitions, 9037 flow, removed 73 selfloop flow, removed 13 redundant places. [2022-01-18 23:01:39,338 INFO L242 Difference]: Finished difference. Result has 390 places, 481 transitions, 7378 flow [2022-01-18 23:01:39,338 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=7146, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7378, PETRI_PLACES=390, PETRI_TRANSITIONS=481} [2022-01-18 23:01:39,338 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 210 predicate places. [2022-01-18 23:01:39,338 INFO L470 AbstractCegarLoop]: Abstraction has has 390 places, 481 transitions, 7378 flow [2022-01-18 23:01:39,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:39,339 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:39,339 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] [2022-01-18 23:01:39,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 23:01:39,339 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:39,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:39,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1584707112, now seen corresponding path program 16 times [2022-01-18 23:01:39,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:39,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383866224] [2022-01-18 23:01:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:39,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:39,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:39,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383866224] [2022-01-18 23:01:39,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383866224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:39,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:39,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 23:01:39,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28603452] [2022-01-18 23:01:39,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:39,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 23:01:39,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:39,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 23:01:39,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-01-18 23:01:39,746 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:01:39,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 481 transitions, 7378 flow. Second operand has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:39,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:39,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:01:39,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:46,119 INFO L129 PetriNetUnfolder]: 8769/25350 cut-off events. [2022-01-18 23:01:46,119 INFO L130 PetriNetUnfolder]: For 241586/241682 co-relation queries the response was YES. [2022-01-18 23:01:46,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114246 conditions, 25350 events. 8769/25350 cut-off events. For 241586/241682 co-relation queries the response was YES. Maximal size of possible extension queue 1256. Compared 307422 event pairs, 3756 based on Foata normal form. 39/25121 useless extension candidates. Maximal degree in co-relation 114135. Up to 8152 conditions per place. [2022-01-18 23:01:46,534 INFO L132 encePairwiseOnDemand]: 168/194 looper letters, 451 selfloop transitions, 211 changer transitions 0/729 dead transitions. [2022-01-18 23:01:46,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 729 transitions, 12012 flow [2022-01-18 23:01:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 23:01:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-18 23:01:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1913 transitions. [2022-01-18 23:01:46,536 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5189907759088442 [2022-01-18 23:01:46,536 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1913 transitions. [2022-01-18 23:01:46,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1913 transitions. [2022-01-18 23:01:46,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:46,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1913 transitions. [2022-01-18 23:01:46,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 100.6842105263158) internal successors, (1913), 19 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:46,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:46,541 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:46,541 INFO L186 Difference]: Start difference. First operand has 390 places, 481 transitions, 7378 flow. Second operand 19 states and 1913 transitions. [2022-01-18 23:01:46,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 729 transitions, 12012 flow [2022-01-18 23:01:47,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 729 transitions, 11940 flow, removed 12 selfloop flow, removed 7 redundant places. [2022-01-18 23:01:47,531 INFO L242 Difference]: Finished difference. Result has 412 places, 550 transitions, 9445 flow [2022-01-18 23:01:47,531 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=7310, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=9445, PETRI_PLACES=412, PETRI_TRANSITIONS=550} [2022-01-18 23:01:47,532 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 232 predicate places. [2022-01-18 23:01:47,532 INFO L470 AbstractCegarLoop]: Abstraction has has 412 places, 550 transitions, 9445 flow [2022-01-18 23:01:47,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:47,532 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:47,532 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] [2022-01-18 23:01:47,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 23:01:47,532 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:47,532 INFO L85 PathProgramCache]: Analyzing trace with hash -63270360, now seen corresponding path program 17 times [2022-01-18 23:01:47,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:47,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716943340] [2022-01-18 23:01:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:47,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:47,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:47,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716943340] [2022-01-18 23:01:47,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716943340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:47,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:47,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 23:01:47,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905393385] [2022-01-18 23:01:47,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:47,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 23:01:47,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:47,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 23:01:47,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 23:01:47,959 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:01:47,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 550 transitions, 9445 flow. Second operand has 19 states, 19 states have (on average 94.42105263157895) internal successors, (1794), 19 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:47,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:47,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:01:47,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:01:55,386 INFO L129 PetriNetUnfolder]: 8769/25515 cut-off events. [2022-01-18 23:01:55,386 INFO L130 PetriNetUnfolder]: For 270083/270199 co-relation queries the response was YES. [2022-01-18 23:01:55,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117581 conditions, 25515 events. 8769/25515 cut-off events. For 270083/270199 co-relation queries the response was YES. Maximal size of possible extension queue 1280. Compared 310805 event pairs, 3947 based on Foata normal form. 49/25292 useless extension candidates. Maximal degree in co-relation 117460. Up to 13223 conditions per place. [2022-01-18 23:01:56,013 INFO L132 encePairwiseOnDemand]: 167/194 looper letters, 414 selfloop transitions, 251 changer transitions 0/732 dead transitions. [2022-01-18 23:01:56,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 732 transitions, 12890 flow [2022-01-18 23:01:56,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 23:01:56,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-18 23:01:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2282 transitions. [2022-01-18 23:01:56,016 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5114298520842672 [2022-01-18 23:01:56,016 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2282 transitions. [2022-01-18 23:01:56,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2282 transitions. [2022-01-18 23:01:56,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:01:56,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2282 transitions. [2022-01-18 23:01:56,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 99.21739130434783) internal successors, (2282), 23 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:56,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 194.0) internal successors, (4656), 24 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:56,021 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 194.0) internal successors, (4656), 24 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:56,021 INFO L186 Difference]: Start difference. First operand has 412 places, 550 transitions, 9445 flow. Second operand 23 states and 2282 transitions. [2022-01-18 23:01:56,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 732 transitions, 12890 flow [2022-01-18 23:01:57,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 732 transitions, 12725 flow, removed 72 selfloop flow, removed 5 redundant places. [2022-01-18 23:01:57,611 INFO L242 Difference]: Finished difference. Result has 438 places, 581 transitions, 10746 flow [2022-01-18 23:01:57,611 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=9280, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=10746, PETRI_PLACES=438, PETRI_TRANSITIONS=581} [2022-01-18 23:01:57,612 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 258 predicate places. [2022-01-18 23:01:57,612 INFO L470 AbstractCegarLoop]: Abstraction has has 438 places, 581 transitions, 10746 flow [2022-01-18 23:01:57,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 94.42105263157895) internal successors, (1794), 19 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:57,612 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:01:57,612 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] [2022-01-18 23:01:57,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 23:01:57,612 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:01:57,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:01:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1789690790, now seen corresponding path program 18 times [2022-01-18 23:01:57,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:01:57,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257982036] [2022-01-18 23:01:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:01:57,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:01:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:01:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:01:57,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:01:57,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257982036] [2022-01-18 23:01:57,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257982036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:01:57,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:01:57,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 23:01:57,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777635618] [2022-01-18 23:01:57,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:01:57,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 23:01:57,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:01:57,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 23:01:57,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-01-18 23:01:57,985 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:01:57,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 581 transitions, 10746 flow. Second operand has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:01:57,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:01:57,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:01:57,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:02:05,329 INFO L129 PetriNetUnfolder]: 8812/25687 cut-off events. [2022-01-18 23:02:05,329 INFO L130 PetriNetUnfolder]: For 287171/287289 co-relation queries the response was YES. [2022-01-18 23:02:05,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119953 conditions, 25687 events. 8812/25687 cut-off events. For 287171/287289 co-relation queries the response was YES. Maximal size of possible extension queue 1285. Compared 313371 event pairs, 4349 based on Foata normal form. 53/25466 useless extension candidates. Maximal degree in co-relation 119823. Up to 9664 conditions per place. [2022-01-18 23:02:05,931 INFO L132 encePairwiseOnDemand]: 168/194 looper letters, 534 selfloop transitions, 239 changer transitions 0/840 dead transitions. [2022-01-18 23:02:05,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 840 transitions, 16047 flow [2022-01-18 23:02:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 23:02:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-18 23:02:05,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1923 transitions. [2022-01-18 23:02:05,933 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5217037438958221 [2022-01-18 23:02:05,933 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1923 transitions. [2022-01-18 23:02:05,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1923 transitions. [2022-01-18 23:02:05,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:02:05,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1923 transitions. [2022-01-18 23:02:05,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 101.21052631578948) internal successors, (1923), 19 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:05,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:05,937 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:05,937 INFO L186 Difference]: Start difference. First operand has 438 places, 581 transitions, 10746 flow. Second operand 19 states and 1923 transitions. [2022-01-18 23:02:05,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 840 transitions, 16047 flow [2022-01-18 23:02:07,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 840 transitions, 15858 flow, removed 34 selfloop flow, removed 9 redundant places. [2022-01-18 23:02:07,379 INFO L242 Difference]: Finished difference. Result has 457 places, 647 transitions, 12935 flow [2022-01-18 23:02:07,379 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=10570, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=174, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12935, PETRI_PLACES=457, PETRI_TRANSITIONS=647} [2022-01-18 23:02:07,380 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 277 predicate places. [2022-01-18 23:02:07,380 INFO L470 AbstractCegarLoop]: Abstraction has has 457 places, 647 transitions, 12935 flow [2022-01-18 23:02:07,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:07,380 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:02:07,380 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] [2022-01-18 23:02:07,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 23:02:07,380 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:02:07,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:02:07,381 INFO L85 PathProgramCache]: Analyzing trace with hash -13621136, now seen corresponding path program 19 times [2022-01-18 23:02:07,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:02:07,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096521112] [2022-01-18 23:02:07,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:02:07,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:02:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:02:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:02:07,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:02:07,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096521112] [2022-01-18 23:02:07,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096521112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:02:07,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:02:07,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 23:02:07,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363777440] [2022-01-18 23:02:07,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:02:07,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 23:02:07,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:02:07,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 23:02:07,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-18 23:02:07,728 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 194 [2022-01-18 23:02:07,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 647 transitions, 12935 flow. Second operand has 12 states, 12 states have (on average 137.41666666666666) internal successors, (1649), 12 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:07,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:02:07,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 194 [2022-01-18 23:02:07,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:02:11,454 INFO L129 PetriNetUnfolder]: 2833/13128 cut-off events. [2022-01-18 23:02:11,454 INFO L130 PetriNetUnfolder]: For 200579/200954 co-relation queries the response was YES. [2022-01-18 23:02:11,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65498 conditions, 13128 events. 2833/13128 cut-off events. For 200579/200954 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 169136 event pairs, 1386 based on Foata normal form. 108/12994 useless extension candidates. Maximal degree in co-relation 65358. Up to 5705 conditions per place. [2022-01-18 23:02:11,617 INFO L132 encePairwiseOnDemand]: 180/194 looper letters, 234 selfloop transitions, 90 changer transitions 0/705 dead transitions. [2022-01-18 23:02:11,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 705 transitions, 13984 flow [2022-01-18 23:02:11,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 23:02:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-18 23:02:11,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1975 transitions. [2022-01-18 23:02:11,633 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7271723122238586 [2022-01-18 23:02:11,633 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1975 transitions. [2022-01-18 23:02:11,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1975 transitions. [2022-01-18 23:02:11,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:02:11,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1975 transitions. [2022-01-18 23:02:11,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 141.07142857142858) internal successors, (1975), 14 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:11,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 194.0) internal successors, (2910), 15 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:11,636 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 194.0) internal successors, (2910), 15 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:11,636 INFO L186 Difference]: Start difference. First operand has 457 places, 647 transitions, 12935 flow. Second operand 14 states and 1975 transitions. [2022-01-18 23:02:11,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 705 transitions, 13984 flow [2022-01-18 23:02:12,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 705 transitions, 13669 flow, removed 132 selfloop flow, removed 6 redundant places. [2022-01-18 23:02:12,567 INFO L242 Difference]: Finished difference. Result has 466 places, 624 transitions, 12232 flow [2022-01-18 23:02:12,567 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=11967, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12232, PETRI_PLACES=466, PETRI_TRANSITIONS=624} [2022-01-18 23:02:12,567 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 286 predicate places. [2022-01-18 23:02:12,568 INFO L470 AbstractCegarLoop]: Abstraction has has 466 places, 624 transitions, 12232 flow [2022-01-18 23:02:12,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 137.41666666666666) internal successors, (1649), 12 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:12,568 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:02:12,568 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] [2022-01-18 23:02:12,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 23:02:12,568 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:02:12,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:02:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1559140922, now seen corresponding path program 20 times [2022-01-18 23:02:12,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:02:12,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206988009] [2022-01-18 23:02:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:02:12,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:02:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:02:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:02:13,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:02:13,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206988009] [2022-01-18 23:02:13,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206988009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:02:13,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:02:13,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 23:02:13,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811878481] [2022-01-18 23:02:13,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:02:13,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 23:02:13,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:02:13,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 23:02:13,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-01-18 23:02:13,088 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:02:13,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 624 transitions, 12232 flow. Second operand has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:13,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:02:13,088 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:02:13,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:02:20,944 INFO L129 PetriNetUnfolder]: 7818/23231 cut-off events. [2022-01-18 23:02:20,944 INFO L130 PetriNetUnfolder]: For 285955/286073 co-relation queries the response was YES. [2022-01-18 23:02:21,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111047 conditions, 23231 events. 7818/23231 cut-off events. For 285955/286073 co-relation queries the response was YES. Maximal size of possible extension queue 1119. Compared 280023 event pairs, 3861 based on Foata normal form. 54/23012 useless extension candidates. Maximal degree in co-relation 110904. Up to 9664 conditions per place. [2022-01-18 23:02:21,532 INFO L132 encePairwiseOnDemand]: 166/194 looper letters, 542 selfloop transitions, 298 changer transitions 0/907 dead transitions. [2022-01-18 23:02:21,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 907 transitions, 17982 flow [2022-01-18 23:02:21,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 23:02:21,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-01-18 23:02:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2693 transitions. [2022-01-18 23:02:21,535 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5141275295914471 [2022-01-18 23:02:21,535 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2693 transitions. [2022-01-18 23:02:21,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2693 transitions. [2022-01-18 23:02:21,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:02:21,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2693 transitions. [2022-01-18 23:02:21,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 99.74074074074075) internal successors, (2693), 27 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:21,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 194.0) internal successors, (5432), 28 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:21,541 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 194.0) internal successors, (5432), 28 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:21,541 INFO L186 Difference]: Start difference. First operand has 466 places, 624 transitions, 12232 flow. Second operand 27 states and 2693 transitions. [2022-01-18 23:02:21,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 907 transitions, 17982 flow [2022-01-18 23:02:23,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 907 transitions, 17896 flow, removed 13 selfloop flow, removed 8 redundant places. [2022-01-18 23:02:23,154 INFO L242 Difference]: Finished difference. Result has 500 places, 712 transitions, 15243 flow [2022-01-18 23:02:23,154 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=12162, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=15243, PETRI_PLACES=500, PETRI_TRANSITIONS=712} [2022-01-18 23:02:23,154 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 320 predicate places. [2022-01-18 23:02:23,155 INFO L470 AbstractCegarLoop]: Abstraction has has 500 places, 712 transitions, 15243 flow [2022-01-18 23:02:23,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:23,155 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:02:23,155 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] [2022-01-18 23:02:23,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 23:02:23,155 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:02:23,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:02:23,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2110006398, now seen corresponding path program 21 times [2022-01-18 23:02:23,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:02:23,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548062486] [2022-01-18 23:02:23,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:02:23,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:02:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:02:23,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:02:23,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:02:23,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548062486] [2022-01-18 23:02:23,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548062486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:02:23,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:02:23,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 23:02:23,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876486971] [2022-01-18 23:02:23,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:02:23,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 23:02:23,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:02:23,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 23:02:23,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 23:02:23,404 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 194 [2022-01-18 23:02:23,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 712 transitions, 15243 flow. Second operand has 13 states, 13 states have (on average 137.15384615384616) internal successors, (1783), 13 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:23,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:02:23,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 194 [2022-01-18 23:02:23,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:02:27,449 INFO L129 PetriNetUnfolder]: 2825/13170 cut-off events. [2022-01-18 23:02:27,450 INFO L130 PetriNetUnfolder]: For 226662/227009 co-relation queries the response was YES. [2022-01-18 23:02:27,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68350 conditions, 13170 events. 2825/13170 cut-off events. For 226662/227009 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 169856 event pairs, 1599 based on Foata normal form. 65/12980 useless extension candidates. Maximal degree in co-relation 68192. Up to 4168 conditions per place. [2022-01-18 23:02:27,618 INFO L132 encePairwiseOnDemand]: 180/194 looper letters, 350 selfloop transitions, 82 changer transitions 0/864 dead transitions. [2022-01-18 23:02:27,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 864 transitions, 18586 flow [2022-01-18 23:02:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 23:02:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-18 23:02:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2119 transitions. [2022-01-18 23:02:27,622 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7281786941580756 [2022-01-18 23:02:27,622 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2119 transitions. [2022-01-18 23:02:27,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2119 transitions. [2022-01-18 23:02:27,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:02:27,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2119 transitions. [2022-01-18 23:02:27,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 141.26666666666668) internal successors, (2119), 15 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:27,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:27,625 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 194.0) internal successors, (3104), 16 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:27,625 INFO L186 Difference]: Start difference. First operand has 500 places, 712 transitions, 15243 flow. Second operand 15 states and 2119 transitions. [2022-01-18 23:02:27,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 864 transitions, 18586 flow [2022-01-18 23:02:28,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 864 transitions, 18250 flow, removed 131 selfloop flow, removed 7 redundant places. [2022-01-18 23:02:28,915 INFO L242 Difference]: Finished difference. Result has 510 places, 718 transitions, 15270 flow [2022-01-18 23:02:28,915 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=14805, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15270, PETRI_PLACES=510, PETRI_TRANSITIONS=718} [2022-01-18 23:02:28,916 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 330 predicate places. [2022-01-18 23:02:28,916 INFO L470 AbstractCegarLoop]: Abstraction has has 510 places, 718 transitions, 15270 flow [2022-01-18 23:02:28,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 137.15384615384616) internal successors, (1783), 13 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:28,916 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:02:28,916 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] [2022-01-18 23:02:28,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 23:02:28,916 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:02:28,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:02:28,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1671239630, now seen corresponding path program 22 times [2022-01-18 23:02:28,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:02:28,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061307223] [2022-01-18 23:02:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:02:28,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:02:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:02:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:02:29,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:02:29,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061307223] [2022-01-18 23:02:29,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061307223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:02:29,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:02:29,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:02:29,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891696579] [2022-01-18 23:02:29,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:02:29,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:02:29,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:02:29,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:02:29,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:02:29,140 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:02:29,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 718 transitions, 15270 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:29,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:02:29,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:02:29,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:02:32,515 INFO L129 PetriNetUnfolder]: 2154/11070 cut-off events. [2022-01-18 23:02:32,515 INFO L130 PetriNetUnfolder]: For 180184/180600 co-relation queries the response was YES. [2022-01-18 23:02:32,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56601 conditions, 11070 events. 2154/11070 cut-off events. For 180184/180600 co-relation queries the response was YES. Maximal size of possible extension queue 601. Compared 141555 event pairs, 1046 based on Foata normal form. 90/10914 useless extension candidates. Maximal degree in co-relation 56439. Up to 3831 conditions per place. [2022-01-18 23:02:32,668 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 276 selfloop transitions, 45 changer transitions 0/809 dead transitions. [2022-01-18 23:02:32,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 809 transitions, 16632 flow [2022-01-18 23:02:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:02:32,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:02:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1663 transitions. [2022-01-18 23:02:32,670 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7792877225866917 [2022-01-18 23:02:32,670 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1663 transitions. [2022-01-18 23:02:32,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1663 transitions. [2022-01-18 23:02:32,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:02:32,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1663 transitions. [2022-01-18 23:02:32,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 151.1818181818182) internal successors, (1663), 11 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:32,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:32,673 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:32,673 INFO L186 Difference]: Start difference. First operand has 510 places, 718 transitions, 15270 flow. Second operand 11 states and 1663 transitions. [2022-01-18 23:02:32,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 809 transitions, 16632 flow [2022-01-18 23:02:33,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 809 transitions, 16551 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-01-18 23:02:33,715 INFO L242 Difference]: Finished difference. Result has 515 places, 695 transitions, 14697 flow [2022-01-18 23:02:33,716 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=14515, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14697, PETRI_PLACES=515, PETRI_TRANSITIONS=695} [2022-01-18 23:02:33,716 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 335 predicate places. [2022-01-18 23:02:33,717 INFO L470 AbstractCegarLoop]: Abstraction has has 515 places, 695 transitions, 14697 flow [2022-01-18 23:02:33,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:33,717 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:02:33,717 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] [2022-01-18 23:02:33,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 23:02:33,717 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:02:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:02:33,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1642844042, now seen corresponding path program 23 times [2022-01-18 23:02:33,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:02:33,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791817868] [2022-01-18 23:02:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:02:33,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:02:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:02:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:02:34,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:02:34,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791817868] [2022-01-18 23:02:34,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791817868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:02:34,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:02:34,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 23:02:34,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483401853] [2022-01-18 23:02:34,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:02:34,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 23:02:34,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:02:34,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 23:02:34,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-01-18 23:02:34,112 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:02:34,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 695 transitions, 14697 flow. Second operand has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:34,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:02:34,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:02:34,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:02:41,600 INFO L129 PetriNetUnfolder]: 6789/20601 cut-off events. [2022-01-18 23:02:41,600 INFO L130 PetriNetUnfolder]: For 302217/302373 co-relation queries the response was YES. [2022-01-18 23:02:41,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103326 conditions, 20601 events. 6789/20601 cut-off events. For 302217/302373 co-relation queries the response was YES. Maximal size of possible extension queue 903. Compared 244556 event pairs, 1316 based on Foata normal form. 81/20515 useless extension candidates. Maximal degree in co-relation 103162. Up to 4905 conditions per place. [2022-01-18 23:02:41,988 INFO L132 encePairwiseOnDemand]: 167/194 looper letters, 561 selfloop transitions, 408 changer transitions 0/1036 dead transitions. [2022-01-18 23:02:41,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1036 transitions, 22132 flow [2022-01-18 23:02:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 23:02:41,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-01-18 23:02:41,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2785 transitions. [2022-01-18 23:02:41,990 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5127025036818851 [2022-01-18 23:02:41,991 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 2785 transitions. [2022-01-18 23:02:41,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 2785 transitions. [2022-01-18 23:02:41,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:02:41,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 2785 transitions. [2022-01-18 23:02:41,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 99.46428571428571) internal successors, (2785), 28 states have internal predecessors, (2785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:41,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 194.0) internal successors, (5626), 29 states have internal predecessors, (5626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:41,996 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 194.0) internal successors, (5626), 29 states have internal predecessors, (5626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:41,996 INFO L186 Difference]: Start difference. First operand has 515 places, 695 transitions, 14697 flow. Second operand 28 states and 2785 transitions. [2022-01-18 23:02:41,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 1036 transitions, 22132 flow [2022-01-18 23:02:43,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 1036 transitions, 21994 flow, removed 21 selfloop flow, removed 8 redundant places. [2022-01-18 23:02:43,886 INFO L242 Difference]: Finished difference. Result has 548 places, 807 transitions, 18786 flow [2022-01-18 23:02:43,886 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=14607, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=18786, PETRI_PLACES=548, PETRI_TRANSITIONS=807} [2022-01-18 23:02:43,890 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 368 predicate places. [2022-01-18 23:02:43,890 INFO L470 AbstractCegarLoop]: Abstraction has has 548 places, 807 transitions, 18786 flow [2022-01-18 23:02:43,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:43,890 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:02:43,891 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] [2022-01-18 23:02:43,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 23:02:43,892 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:02:43,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:02:43,892 INFO L85 PathProgramCache]: Analyzing trace with hash -307836666, now seen corresponding path program 24 times [2022-01-18 23:02:43,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:02:43,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134561547] [2022-01-18 23:02:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:02:43,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:02:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:02:44,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:02:44,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:02:44,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134561547] [2022-01-18 23:02:44,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134561547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:02:44,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:02:44,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:02:44,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508459761] [2022-01-18 23:02:44,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:02:44,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:02:44,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:02:44,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:02:44,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:02:44,099 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:02:44,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 807 transitions, 18786 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:44,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:02:44,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:02:44,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:02:47,907 INFO L129 PetriNetUnfolder]: 2156/11300 cut-off events. [2022-01-18 23:02:47,907 INFO L130 PetriNetUnfolder]: For 218722/219218 co-relation queries the response was YES. [2022-01-18 23:02:48,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60552 conditions, 11300 events. 2156/11300 cut-off events. For 218722/219218 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 145107 event pairs, 825 based on Foata normal form. 62/11151 useless extension candidates. Maximal degree in co-relation 60375. Up to 1779 conditions per place. [2022-01-18 23:02:48,084 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 339 selfloop transitions, 38 changer transitions 0/935 dead transitions. [2022-01-18 23:02:48,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 935 transitions, 21416 flow [2022-01-18 23:02:48,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:02:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:02:48,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1658 transitions. [2022-01-18 23:02:48,086 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7769447047797563 [2022-01-18 23:02:48,086 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1658 transitions. [2022-01-18 23:02:48,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1658 transitions. [2022-01-18 23:02:48,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:02:48,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1658 transitions. [2022-01-18 23:02:48,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 150.72727272727272) internal successors, (1658), 11 states have internal predecessors, (1658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:48,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:48,089 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:48,089 INFO L186 Difference]: Start difference. First operand has 548 places, 807 transitions, 18786 flow. Second operand 11 states and 1658 transitions. [2022-01-18 23:02:48,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 935 transitions, 21416 flow [2022-01-18 23:02:49,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 935 transitions, 20835 flow, removed 192 selfloop flow, removed 7 redundant places. [2022-01-18 23:02:49,505 INFO L242 Difference]: Finished difference. Result has 555 places, 816 transitions, 18525 flow [2022-01-18 23:02:49,506 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=18208, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=807, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=770, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=18525, PETRI_PLACES=555, PETRI_TRANSITIONS=816} [2022-01-18 23:02:49,506 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 375 predicate places. [2022-01-18 23:02:49,507 INFO L470 AbstractCegarLoop]: Abstraction has has 555 places, 816 transitions, 18525 flow [2022-01-18 23:02:49,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:49,507 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:02:49,507 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] [2022-01-18 23:02:49,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 23:02:49,507 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:02:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:02:49,507 INFO L85 PathProgramCache]: Analyzing trace with hash -473074598, now seen corresponding path program 25 times [2022-01-18 23:02:49,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:02:49,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259205989] [2022-01-18 23:02:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:02:49,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:02:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:02:50,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:02:50,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:02:50,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259205989] [2022-01-18 23:02:50,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259205989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:02:50,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:02:50,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 23:02:50,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993606851] [2022-01-18 23:02:50,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:02:50,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 23:02:50,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:02:50,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 23:02:50,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-01-18 23:02:50,034 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:02:50,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 816 transitions, 18525 flow. Second operand has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:50,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:02:50,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:02:50,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:02:58,548 INFO L129 PetriNetUnfolder]: 6780/20549 cut-off events. [2022-01-18 23:02:58,548 INFO L130 PetriNetUnfolder]: For 344079/344174 co-relation queries the response was YES. [2022-01-18 23:02:58,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109161 conditions, 20549 events. 6780/20549 cut-off events. For 344079/344174 co-relation queries the response was YES. Maximal size of possible extension queue 901. Compared 244027 event pairs, 1151 based on Foata normal form. 33/20405 useless extension candidates. Maximal degree in co-relation 108980. Up to 4901 conditions per place. [2022-01-18 23:02:58,884 INFO L132 encePairwiseOnDemand]: 166/194 looper letters, 574 selfloop transitions, 440 changer transitions 0/1081 dead transitions. [2022-01-18 23:02:58,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 1081 transitions, 24436 flow [2022-01-18 23:02:58,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 23:02:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-01-18 23:02:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 2880 transitions. [2022-01-18 23:02:58,887 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5119089939566299 [2022-01-18 23:02:58,887 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 2880 transitions. [2022-01-18 23:02:58,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 2880 transitions. [2022-01-18 23:02:58,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:02:58,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 2880 transitions. [2022-01-18 23:02:58,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 99.3103448275862) internal successors, (2880), 29 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:58,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 194.0) internal successors, (5820), 30 states have internal predecessors, (5820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:58,892 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 194.0) internal successors, (5820), 30 states have internal predecessors, (5820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:02:58,892 INFO L186 Difference]: Start difference. First operand has 555 places, 816 transitions, 18525 flow. Second operand 29 states and 2880 transitions. [2022-01-18 23:02:58,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 1081 transitions, 24436 flow [2022-01-18 23:03:01,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 1081 transitions, 24290 flow, removed 65 selfloop flow, removed 5 redundant places. [2022-01-18 23:03:01,562 INFO L242 Difference]: Finished difference. Result has 587 places, 858 transitions, 20831 flow [2022-01-18 23:03:01,563 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=18449, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=816, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=398, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=20831, PETRI_PLACES=587, PETRI_TRANSITIONS=858} [2022-01-18 23:03:01,563 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 407 predicate places. [2022-01-18 23:03:01,563 INFO L470 AbstractCegarLoop]: Abstraction has has 587 places, 858 transitions, 20831 flow [2022-01-18 23:03:01,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:01,564 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:03:01,564 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] [2022-01-18 23:03:01,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 23:03:01,564 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:03:01,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:03:01,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1749286068, now seen corresponding path program 26 times [2022-01-18 23:03:01,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:03:01,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125714242] [2022-01-18 23:03:01,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:03:01,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:03:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:03:01,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:03:01,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:03:01,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125714242] [2022-01-18 23:03:01,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125714242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:03:01,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:03:01,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 23:03:01,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416898807] [2022-01-18 23:03:01,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:03:01,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 23:03:01,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:03:01,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 23:03:01,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-01-18 23:03:01,939 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:03:01,939 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 858 transitions, 20831 flow. Second operand has 19 states, 19 states have (on average 94.42105263157895) internal successors, (1794), 19 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:01,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:03:01,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:03:01,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:03:10,453 INFO L129 PetriNetUnfolder]: 6780/20702 cut-off events. [2022-01-18 23:03:10,454 INFO L130 PetriNetUnfolder]: For 383170/383283 co-relation queries the response was YES. [2022-01-18 23:03:10,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111393 conditions, 20702 events. 6780/20702 cut-off events. For 383170/383283 co-relation queries the response was YES. Maximal size of possible extension queue 895. Compared 246468 event pairs, 3164 based on Foata normal form. 47/20515 useless extension candidates. Maximal degree in co-relation 111204. Up to 9813 conditions per place. [2022-01-18 23:03:11,024 INFO L132 encePairwiseOnDemand]: 170/194 looper letters, 646 selfloop transitions, 314 changer transitions 0/1027 dead transitions. [2022-01-18 23:03:11,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 1027 transitions, 25146 flow [2022-01-18 23:03:11,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 23:03:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-18 23:03:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2100 transitions. [2022-01-18 23:03:11,026 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5154639175257731 [2022-01-18 23:03:11,026 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2100 transitions. [2022-01-18 23:03:11,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2100 transitions. [2022-01-18 23:03:11,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:03:11,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2100 transitions. [2022-01-18 23:03:11,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 100.0) internal successors, (2100), 21 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:11,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 194.0) internal successors, (4268), 22 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:11,030 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 194.0) internal successors, (4268), 22 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:11,030 INFO L186 Difference]: Start difference. First operand has 587 places, 858 transitions, 20831 flow. Second operand 21 states and 2100 transitions. [2022-01-18 23:03:11,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 1027 transitions, 25146 flow [2022-01-18 23:03:13,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 592 places, 1027 transitions, 24614 flow, removed 117 selfloop flow, removed 15 redundant places. [2022-01-18 23:03:14,016 INFO L242 Difference]: Finished difference. Result has 602 places, 889 transitions, 22167 flow [2022-01-18 23:03:14,017 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=20315, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=858, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=22167, PETRI_PLACES=602, PETRI_TRANSITIONS=889} [2022-01-18 23:03:14,017 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 422 predicate places. [2022-01-18 23:03:14,017 INFO L470 AbstractCegarLoop]: Abstraction has has 602 places, 889 transitions, 22167 flow [2022-01-18 23:03:14,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 94.42105263157895) internal successors, (1794), 19 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:14,018 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:03:14,018 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:03:14,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 23:03:14,018 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:03:14,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:03:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash -363977518, now seen corresponding path program 27 times [2022-01-18 23:03:14,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:03:14,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051386433] [2022-01-18 23:03:14,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:03:14,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:03:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:03:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:03:14,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:03:14,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051386433] [2022-01-18 23:03:14,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051386433] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:03:14,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:03:14,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:03:14,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854738155] [2022-01-18 23:03:14,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:03:14,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:03:14,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:03:14,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:03:14,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:03:14,236 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:03:14,237 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 889 transitions, 22167 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:14,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:03:14,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:03:14,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:03:17,981 INFO L129 PetriNetUnfolder]: 1803/9747 cut-off events. [2022-01-18 23:03:17,981 INFO L130 PetriNetUnfolder]: For 223040/223579 co-relation queries the response was YES. [2022-01-18 23:03:18,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55395 conditions, 9747 events. 1803/9747 cut-off events. For 223040/223579 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 122698 event pairs, 625 based on Foata normal form. 76/9610 useless extension candidates. Maximal degree in co-relation 55196. Up to 3887 conditions per place. [2022-01-18 23:03:18,121 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 253 selfloop transitions, 84 changer transitions 0/921 dead transitions. [2022-01-18 23:03:18,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 921 transitions, 22600 flow [2022-01-18 23:03:18,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:03:18,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:03:18,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1647 transitions. [2022-01-18 23:03:18,122 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7717900656044986 [2022-01-18 23:03:18,122 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1647 transitions. [2022-01-18 23:03:18,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1647 transitions. [2022-01-18 23:03:18,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:03:18,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1647 transitions. [2022-01-18 23:03:18,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 149.72727272727272) internal successors, (1647), 11 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:18,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:18,125 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:18,125 INFO L186 Difference]: Start difference. First operand has 602 places, 889 transitions, 22167 flow. Second operand 11 states and 1647 transitions. [2022-01-18 23:03:18,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 921 transitions, 22600 flow [2022-01-18 23:03:19,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 921 transitions, 22369 flow, removed 23 selfloop flow, removed 7 redundant places. [2022-01-18 23:03:19,650 INFO L242 Difference]: Finished difference. Result has 607 places, 857 transitions, 21071 flow [2022-01-18 23:03:19,650 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=20808, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=769, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=21071, PETRI_PLACES=607, PETRI_TRANSITIONS=857} [2022-01-18 23:03:19,651 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 427 predicate places. [2022-01-18 23:03:19,651 INFO L470 AbstractCegarLoop]: Abstraction has has 607 places, 857 transitions, 21071 flow [2022-01-18 23:03:19,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:19,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:03:19,651 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:03:19,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 23:03:19,651 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:03:19,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:03:19,652 INFO L85 PathProgramCache]: Analyzing trace with hash -867578372, now seen corresponding path program 28 times [2022-01-18 23:03:19,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:03:19,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013888805] [2022-01-18 23:03:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:03:19,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:03:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:03:19,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:03:19,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:03:19,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013888805] [2022-01-18 23:03:19,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013888805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:03:19,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:03:19,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-18 23:03:19,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908020741] [2022-01-18 23:03:19,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:03:19,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 23:03:19,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:03:19,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 23:03:19,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-01-18 23:03:19,997 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:03:19,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 857 transitions, 21071 flow. Second operand has 17 states, 17 states have (on average 94.82352941176471) internal successors, (1612), 17 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:19,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:03:19,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:03:19,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:03:27,773 INFO L129 PetriNetUnfolder]: 5794/18252 cut-off events. [2022-01-18 23:03:27,773 INFO L130 PetriNetUnfolder]: For 363730/363785 co-relation queries the response was YES. [2022-01-18 23:03:28,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100875 conditions, 18252 events. 5794/18252 cut-off events. For 363730/363785 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 214618 event pairs, 2486 based on Foata normal form. 33/18022 useless extension candidates. Maximal degree in co-relation 100673. Up to 4483 conditions per place. [2022-01-18 23:03:28,096 INFO L132 encePairwiseOnDemand]: 169/194 looper letters, 711 selfloop transitions, 284 changer transitions 0/1062 dead transitions. [2022-01-18 23:03:28,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 1062 transitions, 26526 flow [2022-01-18 23:03:28,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 23:03:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-18 23:03:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1916 transitions. [2022-01-18 23:03:28,098 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5198046663049376 [2022-01-18 23:03:28,098 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1916 transitions. [2022-01-18 23:03:28,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1916 transitions. [2022-01-18 23:03:28,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:03:28,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1916 transitions. [2022-01-18 23:03:28,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 100.84210526315789) internal successors, (1916), 19 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:28,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:28,102 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 194.0) internal successors, (3880), 20 states have internal predecessors, (3880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:28,102 INFO L186 Difference]: Start difference. First operand has 607 places, 857 transitions, 21071 flow. Second operand 19 states and 1916 transitions. [2022-01-18 23:03:28,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 1062 transitions, 26526 flow [2022-01-18 23:03:30,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 1062 transitions, 26355 flow, removed 17 selfloop flow, removed 8 redundant places. [2022-01-18 23:03:30,873 INFO L242 Difference]: Finished difference. Result has 626 places, 900 transitions, 23140 flow [2022-01-18 23:03:30,874 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=20912, PETRI_DIFFERENCE_MINUEND_PLACES=599, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=23140, PETRI_PLACES=626, PETRI_TRANSITIONS=900} [2022-01-18 23:03:30,874 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 446 predicate places. [2022-01-18 23:03:30,874 INFO L470 AbstractCegarLoop]: Abstraction has has 626 places, 900 transitions, 23140 flow [2022-01-18 23:03:30,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 94.82352941176471) internal successors, (1612), 17 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:30,874 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:03:30,874 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] [2022-01-18 23:03:30,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 23:03:30,875 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:03:30,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:03:30,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2084414340, now seen corresponding path program 29 times [2022-01-18 23:03:30,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:03:30,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981298422] [2022-01-18 23:03:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:03:30,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:03:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:03:31,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:03:31,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:03:31,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981298422] [2022-01-18 23:03:31,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981298422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:03:31,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:03:31,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:03:31,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349293750] [2022-01-18 23:03:31,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:03:31,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:03:31,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:03:31,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:03:31,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:03:31,066 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:03:31,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 900 transitions, 23140 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:31,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:03:31,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:03:31,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:03:35,149 INFO L129 PetriNetUnfolder]: 1794/10008 cut-off events. [2022-01-18 23:03:35,149 INFO L130 PetriNetUnfolder]: For 246924/247428 co-relation queries the response was YES. [2022-01-18 23:03:35,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57680 conditions, 10008 events. 1794/10008 cut-off events. For 246924/247428 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 126689 event pairs, 669 based on Foata normal form. 104/9893 useless extension candidates. Maximal degree in co-relation 57470. Up to 1909 conditions per place. [2022-01-18 23:03:35,298 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 314 selfloop transitions, 66 changer transitions 0/997 dead transitions. [2022-01-18 23:03:35,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 997 transitions, 25503 flow [2022-01-18 23:03:35,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:03:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:03:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1648 transitions. [2022-01-18 23:03:35,300 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7722586691658857 [2022-01-18 23:03:35,300 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1648 transitions. [2022-01-18 23:03:35,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1648 transitions. [2022-01-18 23:03:35,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:03:35,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1648 transitions. [2022-01-18 23:03:35,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 149.8181818181818) internal successors, (1648), 11 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:35,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:35,302 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:35,302 INFO L186 Difference]: Start difference. First operand has 626 places, 900 transitions, 23140 flow. Second operand 11 states and 1648 transitions. [2022-01-18 23:03:35,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 997 transitions, 25503 flow [2022-01-18 23:03:36,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 997 transitions, 24726 flow, removed 215 selfloop flow, removed 13 redundant places. [2022-01-18 23:03:36,973 INFO L242 Difference]: Finished difference. Result has 626 places, 906 transitions, 22734 flow [2022-01-18 23:03:36,974 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=22412, PETRI_DIFFERENCE_MINUEND_PLACES=613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=835, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22734, PETRI_PLACES=626, PETRI_TRANSITIONS=906} [2022-01-18 23:03:36,974 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 446 predicate places. [2022-01-18 23:03:36,974 INFO L470 AbstractCegarLoop]: Abstraction has has 626 places, 906 transitions, 22734 flow [2022-01-18 23:03:36,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:36,975 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:03:36,975 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] [2022-01-18 23:03:36,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 23:03:36,975 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:03:36,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:03:36,975 INFO L85 PathProgramCache]: Analyzing trace with hash 100333982, now seen corresponding path program 30 times [2022-01-18 23:03:36,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:03:36,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141861909] [2022-01-18 23:03:36,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:03:36,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:03:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:03:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:03:37,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:03:37,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141861909] [2022-01-18 23:03:37,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141861909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:03:37,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:03:37,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 23:03:37,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157781771] [2022-01-18 23:03:37,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:03:37,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 23:03:37,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:03:37,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 23:03:37,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-01-18 23:03:37,348 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:03:37,349 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 906 transitions, 22734 flow. Second operand has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:37,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:03:37,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:03:37,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:03:45,643 INFO L129 PetriNetUnfolder]: 5765/18195 cut-off events. [2022-01-18 23:03:45,643 INFO L130 PetriNetUnfolder]: For 373844/373899 co-relation queries the response was YES. [2022-01-18 23:03:45,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102490 conditions, 18195 events. 5765/18195 cut-off events. For 373844/373899 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 213828 event pairs, 2604 based on Foata normal form. 33/17972 useless extension candidates. Maximal degree in co-relation 102282. Up to 4483 conditions per place. [2022-01-18 23:03:45,964 INFO L132 encePairwiseOnDemand]: 169/194 looper letters, 727 selfloop transitions, 310 changer transitions 0/1104 dead transitions. [2022-01-18 23:03:45,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 645 places, 1104 transitions, 28072 flow [2022-01-18 23:03:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 23:03:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-18 23:03:45,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2015 transitions. [2022-01-18 23:03:45,966 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5193298969072165 [2022-01-18 23:03:45,966 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2015 transitions. [2022-01-18 23:03:45,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2015 transitions. [2022-01-18 23:03:45,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:03:45,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2015 transitions. [2022-01-18 23:03:45,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 100.75) internal successors, (2015), 20 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:45,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:45,970 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 194.0) internal successors, (4074), 21 states have internal predecessors, (4074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:45,970 INFO L186 Difference]: Start difference. First operand has 626 places, 906 transitions, 22734 flow. Second operand 20 states and 2015 transitions. [2022-01-18 23:03:45,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 645 places, 1104 transitions, 28072 flow [2022-01-18 23:03:48,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 639 places, 1104 transitions, 27933 flow, removed 34 selfloop flow, removed 6 redundant places. [2022-01-18 23:03:48,840 INFO L242 Difference]: Finished difference. Result has 647 places, 937 transitions, 24663 flow [2022-01-18 23:03:48,840 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=22637, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=279, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=24663, PETRI_PLACES=647, PETRI_TRANSITIONS=937} [2022-01-18 23:03:48,841 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 467 predicate places. [2022-01-18 23:03:48,841 INFO L470 AbstractCegarLoop]: Abstraction has has 647 places, 937 transitions, 24663 flow [2022-01-18 23:03:48,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:48,841 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:03:48,841 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] [2022-01-18 23:03:48,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 23:03:48,841 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:03:48,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:03:48,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1912381806, now seen corresponding path program 31 times [2022-01-18 23:03:48,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:03:48,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799849053] [2022-01-18 23:03:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:03:48,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:03:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:03:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:03:49,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:03:49,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799849053] [2022-01-18 23:03:49,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799849053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:03:49,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:03:49,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 23:03:49,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684880566] [2022-01-18 23:03:49,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:03:49,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 23:03:49,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:03:49,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 23:03:49,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-01-18 23:03:49,240 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:03:49,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 937 transitions, 24663 flow. Second operand has 19 states, 19 states have (on average 94.42105263157895) internal successors, (1794), 19 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:49,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:03:49,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:03:49,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:03:57,667 INFO L129 PetriNetUnfolder]: 5765/18157 cut-off events. [2022-01-18 23:03:57,667 INFO L130 PetriNetUnfolder]: For 381835/381919 co-relation queries the response was YES. [2022-01-18 23:03:58,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102623 conditions, 18157 events. 5765/18157 cut-off events. For 381835/381919 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 213162 event pairs, 2432 based on Foata normal form. 33/17947 useless extension candidates. Maximal degree in co-relation 102408. Up to 4483 conditions per place. [2022-01-18 23:03:58,070 INFO L132 encePairwiseOnDemand]: 170/194 looper letters, 766 selfloop transitions, 306 changer transitions 0/1139 dead transitions. [2022-01-18 23:03:58,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 667 places, 1139 transitions, 30330 flow [2022-01-18 23:03:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 23:03:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-18 23:03:58,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2108 transitions. [2022-01-18 23:03:58,072 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5174275895925381 [2022-01-18 23:03:58,072 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2108 transitions. [2022-01-18 23:03:58,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2108 transitions. [2022-01-18 23:03:58,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:03:58,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2108 transitions. [2022-01-18 23:03:58,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 100.38095238095238) internal successors, (2108), 21 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:58,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 194.0) internal successors, (4268), 22 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:58,075 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 194.0) internal successors, (4268), 22 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:03:58,076 INFO L186 Difference]: Start difference. First operand has 647 places, 937 transitions, 24663 flow. Second operand 21 states and 2108 transitions. [2022-01-18 23:03:58,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 667 places, 1139 transitions, 30330 flow [2022-01-18 23:04:01,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 1139 transitions, 29940 flow, removed 147 selfloop flow, removed 7 redundant places. [2022-01-18 23:04:01,117 INFO L242 Difference]: Finished difference. Result has 670 places, 974 transitions, 26528 flow [2022-01-18 23:04:01,118 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=24277, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=269, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=641, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=26528, PETRI_PLACES=670, PETRI_TRANSITIONS=974} [2022-01-18 23:04:01,118 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 490 predicate places. [2022-01-18 23:04:01,118 INFO L470 AbstractCegarLoop]: Abstraction has has 670 places, 974 transitions, 26528 flow [2022-01-18 23:04:01,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 94.42105263157895) internal successors, (1794), 19 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:01,119 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:04:01,119 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] [2022-01-18 23:04:01,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 23:04:01,119 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:04:01,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:04:01,119 INFO L85 PathProgramCache]: Analyzing trace with hash -673038982, now seen corresponding path program 32 times [2022-01-18 23:04:01,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:04:01,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404756362] [2022-01-18 23:04:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:04:01,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:04:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:04:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:04:01,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:04:01,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404756362] [2022-01-18 23:04:01,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404756362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:04:01,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:04:01,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:04:01,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91016665] [2022-01-18 23:04:01,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:04:01,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:04:01,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:04:01,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:04:01,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:04:01,318 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:04:01,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 974 transitions, 26528 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:01,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:04:01,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:04:01,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:04:05,067 INFO L129 PetriNetUnfolder]: 1428/8657 cut-off events. [2022-01-18 23:04:05,067 INFO L130 PetriNetUnfolder]: For 251464/251972 co-relation queries the response was YES. [2022-01-18 23:04:05,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52554 conditions, 8657 events. 1428/8657 cut-off events. For 251464/251972 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 107941 event pairs, 664 based on Foata normal form. 78/8532 useless extension candidates. Maximal degree in co-relation 52329. Up to 1779 conditions per place. [2022-01-18 23:04:05,199 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 324 selfloop transitions, 68 changer transitions 0/1050 dead transitions. [2022-01-18 23:04:05,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 680 places, 1050 transitions, 27902 flow [2022-01-18 23:04:05,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:04:05,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:04:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1654 transitions. [2022-01-18 23:04:05,200 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7750702905342081 [2022-01-18 23:04:05,200 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1654 transitions. [2022-01-18 23:04:05,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1654 transitions. [2022-01-18 23:04:05,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:04:05,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1654 transitions. [2022-01-18 23:04:05,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 150.36363636363637) internal successors, (1654), 11 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:05,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:05,203 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:05,203 INFO L186 Difference]: Start difference. First operand has 670 places, 974 transitions, 26528 flow. Second operand 11 states and 1654 transitions. [2022-01-18 23:04:05,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 680 places, 1050 transitions, 27902 flow [2022-01-18 23:04:07,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 674 places, 1050 transitions, 27567 flow, removed 135 selfloop flow, removed 6 redundant places. [2022-01-18 23:04:07,113 INFO L242 Difference]: Finished difference. Result has 676 places, 959 transitions, 25687 flow [2022-01-18 23:04:07,114 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=25471, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=887, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=25687, PETRI_PLACES=676, PETRI_TRANSITIONS=959} [2022-01-18 23:04:07,114 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 496 predicate places. [2022-01-18 23:04:07,114 INFO L470 AbstractCegarLoop]: Abstraction has has 676 places, 959 transitions, 25687 flow [2022-01-18 23:04:07,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:07,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:04:07,114 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] [2022-01-18 23:04:07,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 23:04:07,114 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:04:07,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:04:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash 666800064, now seen corresponding path program 33 times [2022-01-18 23:04:07,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:04:07,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380732352] [2022-01-18 23:04:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:04:07,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:04:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:04:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:04:07,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:04:07,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380732352] [2022-01-18 23:04:07,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380732352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:04:07,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:04:07,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 23:04:07,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28834634] [2022-01-18 23:04:07,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:04:07,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 23:04:07,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:04:07,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 23:04:07,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-01-18 23:04:07,508 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 194 [2022-01-18 23:04:07,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 676 places, 959 transitions, 25687 flow. Second operand has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:07,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:04:07,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 194 [2022-01-18 23:04:07,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:04:15,324 INFO L129 PetriNetUnfolder]: 4734/15771 cut-off events. [2022-01-18 23:04:15,325 INFO L130 PetriNetUnfolder]: For 377135/377184 co-relation queries the response was YES. [2022-01-18 23:04:15,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92231 conditions, 15771 events. 4734/15771 cut-off events. For 377135/377184 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 182367 event pairs, 2228 based on Foata normal form. 27/15570 useless extension candidates. Maximal degree in co-relation 92003. Up to 4483 conditions per place. [2022-01-18 23:04:15,600 INFO L132 encePairwiseOnDemand]: 169/194 looper letters, 813 selfloop transitions, 323 changer transitions 0/1203 dead transitions. [2022-01-18 23:04:15,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 697 places, 1203 transitions, 32186 flow [2022-01-18 23:04:15,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 23:04:15,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-18 23:04:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2213 transitions. [2022-01-18 23:04:15,602 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5185098406747891 [2022-01-18 23:04:15,602 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2213 transitions. [2022-01-18 23:04:15,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2213 transitions. [2022-01-18 23:04:15,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:04:15,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2213 transitions. [2022-01-18 23:04:15,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 100.5909090909091) internal successors, (2213), 22 states have internal predecessors, (2213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:15,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 194.0) internal successors, (4462), 23 states have internal predecessors, (4462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:15,606 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 194.0) internal successors, (4462), 23 states have internal predecessors, (4462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:15,606 INFO L186 Difference]: Start difference. First operand has 676 places, 959 transitions, 25687 flow. Second operand 22 states and 2213 transitions. [2022-01-18 23:04:15,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 697 places, 1203 transitions, 32186 flow [2022-01-18 23:04:18,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 689 places, 1203 transitions, 32006 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-01-18 23:04:18,630 INFO L242 Difference]: Finished difference. Result has 700 places, 1007 transitions, 28194 flow [2022-01-18 23:04:18,631 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=25551, PETRI_DIFFERENCE_MINUEND_PLACES=668, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=278, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=653, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=28194, PETRI_PLACES=700, PETRI_TRANSITIONS=1007} [2022-01-18 23:04:18,631 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 520 predicate places. [2022-01-18 23:04:18,631 INFO L470 AbstractCegarLoop]: Abstraction has has 700 places, 1007 transitions, 28194 flow [2022-01-18 23:04:18,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 94.61111111111111) internal successors, (1703), 18 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:18,631 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:04:18,631 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] [2022-01-18 23:04:18,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 23:04:18,631 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:04:18,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:04:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1940868334, now seen corresponding path program 34 times [2022-01-18 23:04:18,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:04:18,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482450856] [2022-01-18 23:04:18,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:04:18,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:04:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:04:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:04:18,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:04:18,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482450856] [2022-01-18 23:04:18,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482450856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:04:18,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:04:18,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 23:04:18,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028176893] [2022-01-18 23:04:18,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:04:18,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 23:04:18,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:04:18,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 23:04:18,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 23:04:18,829 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 194 [2022-01-18 23:04:18,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 700 places, 1007 transitions, 28194 flow. Second operand has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:18,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:04:18,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 194 [2022-01-18 23:04:18,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:04:22,294 INFO L129 PetriNetUnfolder]: 1081/7305 cut-off events. [2022-01-18 23:04:22,295 INFO L130 PetriNetUnfolder]: For 236754/237128 co-relation queries the response was YES. [2022-01-18 23:04:22,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46309 conditions, 7305 events. 1081/7305 cut-off events. For 236754/237128 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 88982 event pairs, 348 based on Foata normal form. 76/7211 useless extension candidates. Maximal degree in co-relation 46071. Up to 1779 conditions per place. [2022-01-18 23:04:22,402 INFO L132 encePairwiseOnDemand]: 182/194 looper letters, 364 selfloop transitions, 50 changer transitions 0/1059 dead transitions. [2022-01-18 23:04:22,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 708 places, 1059 transitions, 28583 flow [2022-01-18 23:04:22,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 23:04:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-18 23:04:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1663 transitions. [2022-01-18 23:04:22,404 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7792877225866917 [2022-01-18 23:04:22,404 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1663 transitions. [2022-01-18 23:04:22,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1663 transitions. [2022-01-18 23:04:22,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:04:22,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1663 transitions. [2022-01-18 23:04:22,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 151.1818181818182) internal successors, (1663), 11 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:22,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:22,406 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 194.0) internal successors, (2328), 12 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:22,406 INFO L186 Difference]: Start difference. First operand has 700 places, 1007 transitions, 28194 flow. Second operand 11 states and 1663 transitions. [2022-01-18 23:04:22,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 708 places, 1059 transitions, 28583 flow [2022-01-18 23:04:24,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 669 places, 1059 transitions, 27355 flow, removed 195 selfloop flow, removed 39 redundant places. [2022-01-18 23:04:24,041 INFO L242 Difference]: Finished difference. Result has 671 places, 953 transitions, 25385 flow [2022-01-18 23:04:24,042 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=25201, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=949, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=899, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=25385, PETRI_PLACES=671, PETRI_TRANSITIONS=953} [2022-01-18 23:04:24,043 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 491 predicate places. [2022-01-18 23:04:24,043 INFO L470 AbstractCegarLoop]: Abstraction has has 671 places, 953 transitions, 25385 flow [2022-01-18 23:04:24,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 145.0909090909091) internal successors, (1596), 11 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:24,043 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:04:24,043 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] [2022-01-18 23:04:24,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 23:04:24,043 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:04:24,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:04:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2026167563, now seen corresponding path program 1 times [2022-01-18 23:04:24,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:04:24,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654762541] [2022-01-18 23:04:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:04:24,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:04:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:04:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:04:24,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:04:24,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654762541] [2022-01-18 23:04:24,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654762541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:04:24,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:04:24,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:04:24,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161094448] [2022-01-18 23:04:24,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:04:24,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:04:24,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:04:24,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:04:24,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:04:24,930 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:04:24,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 671 places, 953 transitions, 25385 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:24,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:04:24,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:04:24,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:04:34,000 INFO L129 PetriNetUnfolder]: 4805/15132 cut-off events. [2022-01-18 23:04:34,000 INFO L130 PetriNetUnfolder]: For 366756/366801 co-relation queries the response was YES. [2022-01-18 23:04:34,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86293 conditions, 15132 events. 4805/15132 cut-off events. For 366756/366801 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 170651 event pairs, 1374 based on Foata normal form. 17/14835 useless extension candidates. Maximal degree in co-relation 86082. Up to 6005 conditions per place. [2022-01-18 23:04:34,240 INFO L132 encePairwiseOnDemand]: 159/194 looper letters, 793 selfloop transitions, 411 changer transitions 30/1336 dead transitions. [2022-01-18 23:04:34,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 705 places, 1336 transitions, 36159 flow [2022-01-18 23:04:34,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 23:04:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-18 23:04:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3273 transitions. [2022-01-18 23:04:34,242 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48203240058910163 [2022-01-18 23:04:34,242 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3273 transitions. [2022-01-18 23:04:34,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3273 transitions. [2022-01-18 23:04:34,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:04:34,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3273 transitions. [2022-01-18 23:04:34,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 93.51428571428572) internal successors, (3273), 35 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:34,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:34,248 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:34,248 INFO L186 Difference]: Start difference. First operand has 671 places, 953 transitions, 25385 flow. Second operand 35 states and 3273 transitions. [2022-01-18 23:04:34,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 705 places, 1336 transitions, 36159 flow [2022-01-18 23:04:36,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 697 places, 1336 transitions, 35969 flow, removed 23 selfloop flow, removed 8 redundant places. [2022-01-18 23:04:36,905 INFO L242 Difference]: Finished difference. Result has 712 places, 1067 transitions, 28947 flow [2022-01-18 23:04:36,906 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=25279, PETRI_DIFFERENCE_MINUEND_PLACES=663, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=953, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=28947, PETRI_PLACES=712, PETRI_TRANSITIONS=1067} [2022-01-18 23:04:36,906 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 532 predicate places. [2022-01-18 23:04:36,906 INFO L470 AbstractCegarLoop]: Abstraction has has 712 places, 1067 transitions, 28947 flow [2022-01-18 23:04:36,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:36,906 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:04:36,907 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] [2022-01-18 23:04:36,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 23:04:36,907 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:04:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:04:36,907 INFO L85 PathProgramCache]: Analyzing trace with hash 55285405, now seen corresponding path program 2 times [2022-01-18 23:04:36,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:04:36,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502892494] [2022-01-18 23:04:36,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:04:36,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:04:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:04:37,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:04:37,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:04:37,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502892494] [2022-01-18 23:04:37,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502892494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:04:37,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:04:37,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:04:37,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606891515] [2022-01-18 23:04:37,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:04:37,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:04:37,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:04:37,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:04:37,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:04:37,745 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:04:37,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 712 places, 1067 transitions, 28947 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:37,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:04:37,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:04:37,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:04:47,091 INFO L129 PetriNetUnfolder]: 4829/15271 cut-off events. [2022-01-18 23:04:47,091 INFO L130 PetriNetUnfolder]: For 391285/391330 co-relation queries the response was YES. [2022-01-18 23:04:47,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92790 conditions, 15271 events. 4829/15271 cut-off events. For 391285/391330 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 172747 event pairs, 1412 based on Foata normal form. 18/14964 useless extension candidates. Maximal degree in co-relation 92564. Up to 6176 conditions per place. [2022-01-18 23:04:47,359 INFO L132 encePairwiseOnDemand]: 160/194 looper letters, 788 selfloop transitions, 399 changer transitions 62/1351 dead transitions. [2022-01-18 23:04:47,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 737 places, 1351 transitions, 37654 flow [2022-01-18 23:04:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 23:04:47,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-18 23:04:47,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3175 transitions. [2022-01-18 23:04:47,361 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48135233474833233 [2022-01-18 23:04:47,361 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3175 transitions. [2022-01-18 23:04:47,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3175 transitions. [2022-01-18 23:04:47,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:04:47,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3175 transitions. [2022-01-18 23:04:47,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 93.38235294117646) internal successors, (3175), 34 states have internal predecessors, (3175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:47,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:47,368 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:47,368 INFO L186 Difference]: Start difference. First operand has 712 places, 1067 transitions, 28947 flow. Second operand 34 states and 3175 transitions. [2022-01-18 23:04:47,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 737 places, 1351 transitions, 37654 flow [2022-01-18 23:04:50,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 719 places, 1351 transitions, 36943 flow, removed 128 selfloop flow, removed 18 redundant places. [2022-01-18 23:04:50,444 INFO L242 Difference]: Finished difference. Result has 729 places, 1069 transitions, 29239 flow [2022-01-18 23:04:50,445 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=28304, PETRI_DIFFERENCE_MINUEND_PLACES=686, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1067, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=393, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=29239, PETRI_PLACES=729, PETRI_TRANSITIONS=1069} [2022-01-18 23:04:50,445 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 549 predicate places. [2022-01-18 23:04:50,445 INFO L470 AbstractCegarLoop]: Abstraction has has 729 places, 1069 transitions, 29239 flow [2022-01-18 23:04:50,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:50,446 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:04:50,446 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] [2022-01-18 23:04:50,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 23:04:50,446 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:04:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:04:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash -877080279, now seen corresponding path program 3 times [2022-01-18 23:04:50,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:04:50,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009734942] [2022-01-18 23:04:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:04:50,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:04:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:04:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:04:51,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:04:51,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009734942] [2022-01-18 23:04:51,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009734942] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:04:51,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:04:51,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 23:04:51,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242174932] [2022-01-18 23:04:51,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:04:51,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 23:04:51,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:04:51,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 23:04:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2022-01-18 23:04:51,344 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 194 [2022-01-18 23:04:51,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 729 places, 1069 transitions, 29239 flow. Second operand has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:04:51,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:04:51,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 194 [2022-01-18 23:04:51,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:05:01,217 INFO L129 PetriNetUnfolder]: 4754/15073 cut-off events. [2022-01-18 23:05:01,218 INFO L130 PetriNetUnfolder]: For 400594/400637 co-relation queries the response was YES. [2022-01-18 23:05:01,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94327 conditions, 15073 events. 4754/15073 cut-off events. For 400594/400637 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 169688 event pairs, 1514 based on Foata normal form. 19/14760 useless extension candidates. Maximal degree in co-relation 94098. Up to 6127 conditions per place. [2022-01-18 23:05:01,493 INFO L132 encePairwiseOnDemand]: 156/194 looper letters, 740 selfloop transitions, 433 changer transitions 61/1335 dead transitions. [2022-01-18 23:05:01,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 1335 transitions, 37440 flow [2022-01-18 23:05:01,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 23:05:01,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-01-18 23:05:01,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3655 transitions. [2022-01-18 23:05:01,497 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47100515463917525 [2022-01-18 23:05:01,497 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3655 transitions. [2022-01-18 23:05:01,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3655 transitions. [2022-01-18 23:05:01,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:05:01,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3655 transitions. [2022-01-18 23:05:01,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 91.375) internal successors, (3655), 40 states have internal predecessors, (3655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:01,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 194.0) internal successors, (7954), 41 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:01,504 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 194.0) internal successors, (7954), 41 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:01,504 INFO L186 Difference]: Start difference. First operand has 729 places, 1069 transitions, 29239 flow. Second operand 40 states and 3655 transitions. [2022-01-18 23:05:01,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 758 places, 1335 transitions, 37440 flow [2022-01-18 23:05:04,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 733 places, 1335 transitions, 36567 flow, removed 55 selfloop flow, removed 25 redundant places. [2022-01-18 23:05:04,781 INFO L242 Difference]: Finished difference. Result has 744 places, 1066 transitions, 29231 flow [2022-01-18 23:05:04,782 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=28403, PETRI_DIFFERENCE_MINUEND_PLACES=694, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=29231, PETRI_PLACES=744, PETRI_TRANSITIONS=1066} [2022-01-18 23:05:04,782 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 564 predicate places. [2022-01-18 23:05:04,782 INFO L470 AbstractCegarLoop]: Abstraction has has 744 places, 1066 transitions, 29231 flow [2022-01-18 23:05:04,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:04,783 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:05:04,783 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] [2022-01-18 23:05:04,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 23:05:04,783 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:05:04,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:05:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash 367246937, now seen corresponding path program 4 times [2022-01-18 23:05:04,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:05:04,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409753731] [2022-01-18 23:05:04,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:05:04,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:05:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:05:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:05:05,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:05:05,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409753731] [2022-01-18 23:05:05,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409753731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:05:05,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:05:05,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 23:05:05,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509821715] [2022-01-18 23:05:05,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:05:05,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 23:05:05,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:05:05,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 23:05:05,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2022-01-18 23:05:05,717 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 194 [2022-01-18 23:05:05,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 744 places, 1066 transitions, 29231 flow. Second operand has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:05,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:05:05,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 194 [2022-01-18 23:05:05,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:05:16,165 INFO L129 PetriNetUnfolder]: 5064/15922 cut-off events. [2022-01-18 23:05:16,165 INFO L130 PetriNetUnfolder]: For 415981/416034 co-relation queries the response was YES. [2022-01-18 23:05:16,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100474 conditions, 15922 events. 5064/15922 cut-off events. For 415981/416034 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 180855 event pairs, 1564 based on Foata normal form. 23/15606 useless extension candidates. Maximal degree in co-relation 100241. Up to 6162 conditions per place. [2022-01-18 23:05:16,452 INFO L132 encePairwiseOnDemand]: 156/194 looper letters, 752 selfloop transitions, 463 changer transitions 71/1387 dead transitions. [2022-01-18 23:05:16,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 770 places, 1387 transitions, 38759 flow [2022-01-18 23:05:16,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 23:05:16,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-01-18 23:05:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3653 transitions. [2022-01-18 23:05:16,458 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47074742268041236 [2022-01-18 23:05:16,458 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3653 transitions. [2022-01-18 23:05:16,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3653 transitions. [2022-01-18 23:05:16,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:05:16,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3653 transitions. [2022-01-18 23:05:16,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 91.325) internal successors, (3653), 40 states have internal predecessors, (3653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:16,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 194.0) internal successors, (7954), 41 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:16,464 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 194.0) internal successors, (7954), 41 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:16,464 INFO L186 Difference]: Start difference. First operand has 744 places, 1066 transitions, 29231 flow. Second operand 40 states and 3653 transitions. [2022-01-18 23:05:16,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 770 places, 1387 transitions, 38759 flow [2022-01-18 23:05:20,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 735 places, 1387 transitions, 37749 flow, removed 58 selfloop flow, removed 35 redundant places. [2022-01-18 23:05:20,158 INFO L242 Difference]: Finished difference. Result has 749 places, 1111 transitions, 31004 flow [2022-01-18 23:05:20,159 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=28343, PETRI_DIFFERENCE_MINUEND_PLACES=696, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=418, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=31004, PETRI_PLACES=749, PETRI_TRANSITIONS=1111} [2022-01-18 23:05:20,159 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 569 predicate places. [2022-01-18 23:05:20,159 INFO L470 AbstractCegarLoop]: Abstraction has has 749 places, 1111 transitions, 31004 flow [2022-01-18 23:05:20,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:20,160 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:05:20,160 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] [2022-01-18 23:05:20,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 23:05:20,160 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:05:20,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:05:20,160 INFO L85 PathProgramCache]: Analyzing trace with hash 793674251, now seen corresponding path program 5 times [2022-01-18 23:05:20,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:05:20,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405823279] [2022-01-18 23:05:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:05:20,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:05:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:05:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:05:20,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:05:20,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405823279] [2022-01-18 23:05:20,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405823279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:05:20,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:05:20,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 23:05:20,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277039471] [2022-01-18 23:05:20,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:05:20,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 23:05:20,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:05:20,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 23:05:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-18 23:05:20,891 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:05:20,892 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 749 places, 1111 transitions, 31004 flow. Second operand has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:20,892 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:05:20,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:05:20,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:05:31,507 INFO L129 PetriNetUnfolder]: 5446/17158 cut-off events. [2022-01-18 23:05:31,507 INFO L130 PetriNetUnfolder]: For 438449/438486 co-relation queries the response was YES. [2022-01-18 23:05:31,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108693 conditions, 17158 events. 5446/17158 cut-off events. For 438449/438486 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 198206 event pairs, 1871 based on Foata normal form. 17/16881 useless extension candidates. Maximal degree in co-relation 108455. Up to 8870 conditions per place. [2022-01-18 23:05:31,864 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 844 selfloop transitions, 346 changer transitions 74/1366 dead transitions. [2022-01-18 23:05:31,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 767 places, 1366 transitions, 38465 flow [2022-01-18 23:05:31,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 23:05:31,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-18 23:05:31,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3065 transitions. [2022-01-18 23:05:31,866 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.478756638550453 [2022-01-18 23:05:31,866 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3065 transitions. [2022-01-18 23:05:31,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3065 transitions. [2022-01-18 23:05:31,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:05:31,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3065 transitions. [2022-01-18 23:05:31,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 92.87878787878788) internal successors, (3065), 33 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:31,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:31,871 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:31,871 INFO L186 Difference]: Start difference. First operand has 749 places, 1111 transitions, 31004 flow. Second operand 33 states and 3065 transitions. [2022-01-18 23:05:31,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 767 places, 1366 transitions, 38465 flow [2022-01-18 23:05:36,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 735 places, 1366 transitions, 37460 flow, removed 86 selfloop flow, removed 32 redundant places. [2022-01-18 23:05:36,106 INFO L242 Difference]: Finished difference. Result has 750 places, 1121 transitions, 31166 flow [2022-01-18 23:05:36,107 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=30097, PETRI_DIFFERENCE_MINUEND_PLACES=703, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=330, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=771, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=31166, PETRI_PLACES=750, PETRI_TRANSITIONS=1121} [2022-01-18 23:05:36,107 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 570 predicate places. [2022-01-18 23:05:36,107 INFO L470 AbstractCegarLoop]: Abstraction has has 750 places, 1121 transitions, 31166 flow [2022-01-18 23:05:36,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:36,108 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:05:36,108 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] [2022-01-18 23:05:36,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 23:05:36,108 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:05:36,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:05:36,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1106863163, now seen corresponding path program 6 times [2022-01-18 23:05:36,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:05:36,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434937490] [2022-01-18 23:05:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:05:36,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:05:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:05:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:05:36,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:05:36,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434937490] [2022-01-18 23:05:36,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434937490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:05:36,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:05:36,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:05:36,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711926065] [2022-01-18 23:05:36,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:05:36,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:05:36,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:05:36,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:05:36,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:05:36,980 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:05:36,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 750 places, 1121 transitions, 31166 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:36,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:05:36,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:05:36,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:05:47,926 INFO L129 PetriNetUnfolder]: 5314/16520 cut-off events. [2022-01-18 23:05:47,927 INFO L130 PetriNetUnfolder]: For 436544/436605 co-relation queries the response was YES. [2022-01-18 23:05:48,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107130 conditions, 16520 events. 5314/16520 cut-off events. For 436544/436605 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 189342 event pairs, 1422 based on Foata normal form. 27/16172 useless extension candidates. Maximal degree in co-relation 106888. Up to 6620 conditions per place. [2022-01-18 23:05:48,253 INFO L132 encePairwiseOnDemand]: 159/194 looper letters, 766 selfloop transitions, 413 changer transitions 62/1343 dead transitions. [2022-01-18 23:05:48,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 772 places, 1343 transitions, 37855 flow [2022-01-18 23:05:48,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 23:05:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-01-18 23:05:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3360 transitions. [2022-01-18 23:05:48,256 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48109965635738833 [2022-01-18 23:05:48,256 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3360 transitions. [2022-01-18 23:05:48,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3360 transitions. [2022-01-18 23:05:48,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:05:48,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3360 transitions. [2022-01-18 23:05:48,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 93.33333333333333) internal successors, (3360), 36 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:48,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 194.0) internal successors, (7178), 37 states have internal predecessors, (7178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:48,261 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 194.0) internal successors, (7178), 37 states have internal predecessors, (7178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:48,261 INFO L186 Difference]: Start difference. First operand has 750 places, 1121 transitions, 31166 flow. Second operand 36 states and 3360 transitions. [2022-01-18 23:05:48,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 772 places, 1343 transitions, 37855 flow [2022-01-18 23:05:52,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 747 places, 1343 transitions, 36923 flow, removed 173 selfloop flow, removed 25 redundant places. [2022-01-18 23:05:52,480 INFO L242 Difference]: Finished difference. Result has 752 places, 1106 transitions, 30810 flow [2022-01-18 23:05:52,481 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=30370, PETRI_DIFFERENCE_MINUEND_PLACES=712, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=30810, PETRI_PLACES=752, PETRI_TRANSITIONS=1106} [2022-01-18 23:05:52,482 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 572 predicate places. [2022-01-18 23:05:52,482 INFO L470 AbstractCegarLoop]: Abstraction has has 752 places, 1106 transitions, 30810 flow [2022-01-18 23:05:52,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:52,482 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:05:52,482 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] [2022-01-18 23:05:52,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 23:05:52,482 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:05:52,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:05:52,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1986806517, now seen corresponding path program 7 times [2022-01-18 23:05:52,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:05:52,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837182444] [2022-01-18 23:05:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:05:52,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:05:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:05:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:05:53,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:05:53,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837182444] [2022-01-18 23:05:53,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837182444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:05:53,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:05:53,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 23:05:53,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135848944] [2022-01-18 23:05:53,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:05:53,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 23:05:53,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:05:53,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 23:05:53,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 23:05:53,423 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 194 [2022-01-18 23:05:53,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 752 places, 1106 transitions, 30810 flow. Second operand has 34 states, 34 states have (on average 88.20588235294117) internal successors, (2999), 34 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:05:53,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:05:53,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 194 [2022-01-18 23:05:53,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:06:04,795 INFO L129 PetriNetUnfolder]: 5530/17504 cut-off events. [2022-01-18 23:06:04,795 INFO L130 PetriNetUnfolder]: For 448049/448124 co-relation queries the response was YES. [2022-01-18 23:06:05,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109926 conditions, 17504 events. 5530/17504 cut-off events. For 448049/448124 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 202713 event pairs, 2195 based on Foata normal form. 28/17241 useless extension candidates. Maximal degree in co-relation 109690. Up to 10014 conditions per place. [2022-01-18 23:06:05,164 INFO L132 encePairwiseOnDemand]: 154/194 looper letters, 768 selfloop transitions, 408 changer transitions 59/1336 dead transitions. [2022-01-18 23:06:05,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 781 places, 1336 transitions, 37467 flow [2022-01-18 23:06:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 23:06:05,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-01-18 23:06:05,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3655 transitions. [2022-01-18 23:06:05,166 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47100515463917525 [2022-01-18 23:06:05,166 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3655 transitions. [2022-01-18 23:06:05,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3655 transitions. [2022-01-18 23:06:05,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:06:05,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3655 transitions. [2022-01-18 23:06:05,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 91.375) internal successors, (3655), 40 states have internal predecessors, (3655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:05,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 194.0) internal successors, (7954), 41 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:05,173 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 194.0) internal successors, (7954), 41 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:05,173 INFO L186 Difference]: Start difference. First operand has 752 places, 1106 transitions, 30810 flow. Second operand 40 states and 3655 transitions. [2022-01-18 23:06:05,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 781 places, 1336 transitions, 37467 flow [2022-01-18 23:06:09,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 744 places, 1336 transitions, 36409 flow, removed 44 selfloop flow, removed 37 redundant places. [2022-01-18 23:06:09,484 INFO L242 Difference]: Finished difference. Result has 758 places, 1180 transitions, 32659 flow [2022-01-18 23:06:09,485 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=29886, PETRI_DIFFERENCE_MINUEND_PLACES=705, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=723, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=32659, PETRI_PLACES=758, PETRI_TRANSITIONS=1180} [2022-01-18 23:06:09,485 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 578 predicate places. [2022-01-18 23:06:09,485 INFO L470 AbstractCegarLoop]: Abstraction has has 758 places, 1180 transitions, 32659 flow [2022-01-18 23:06:09,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 88.20588235294117) internal successors, (2999), 34 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:09,486 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:06:09,486 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] [2022-01-18 23:06:09,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 23:06:09,486 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:06:09,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:06:09,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1457227437, now seen corresponding path program 8 times [2022-01-18 23:06:09,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:06:09,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455542751] [2022-01-18 23:06:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:06:09,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:06:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:06:10,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:06:10,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:06:10,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455542751] [2022-01-18 23:06:10,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455542751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:06:10,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:06:10,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:06:10,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084695257] [2022-01-18 23:06:10,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:06:10,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:06:10,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:06:10,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:06:10,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:06:10,371 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:06:10,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 758 places, 1180 transitions, 32659 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:10,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:06:10,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:06:10,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:06:21,634 INFO L129 PetriNetUnfolder]: 5457/17251 cut-off events. [2022-01-18 23:06:21,634 INFO L130 PetriNetUnfolder]: For 448183/448229 co-relation queries the response was YES. [2022-01-18 23:06:21,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110307 conditions, 17251 events. 5457/17251 cut-off events. For 448183/448229 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 199956 event pairs, 1822 based on Foata normal form. 26/16987 useless extension candidates. Maximal degree in co-relation 110068. Up to 9002 conditions per place. [2022-01-18 23:06:21,988 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 873 selfloop transitions, 370 changer transitions 71/1416 dead transitions. [2022-01-18 23:06:21,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 782 places, 1416 transitions, 40023 flow [2022-01-18 23:06:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 23:06:21,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-18 23:06:21,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3251 transitions. [2022-01-18 23:06:21,990 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47879234167893964 [2022-01-18 23:06:21,990 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3251 transitions. [2022-01-18 23:06:21,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3251 transitions. [2022-01-18 23:06:21,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:06:21,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3251 transitions. [2022-01-18 23:06:21,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 92.88571428571429) internal successors, (3251), 35 states have internal predecessors, (3251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:21,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:21,995 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:21,995 INFO L186 Difference]: Start difference. First operand has 758 places, 1180 transitions, 32659 flow. Second operand 35 states and 3251 transitions. [2022-01-18 23:06:21,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 782 places, 1416 transitions, 40023 flow [2022-01-18 23:06:26,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 755 places, 1416 transitions, 39280 flow, removed 114 selfloop flow, removed 27 redundant places. [2022-01-18 23:06:26,534 INFO L242 Difference]: Finished difference. Result has 768 places, 1190 transitions, 33224 flow [2022-01-18 23:06:26,535 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=31960, PETRI_DIFFERENCE_MINUEND_PLACES=721, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=352, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=812, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=33224, PETRI_PLACES=768, PETRI_TRANSITIONS=1190} [2022-01-18 23:06:26,535 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 588 predicate places. [2022-01-18 23:06:26,535 INFO L470 AbstractCegarLoop]: Abstraction has has 768 places, 1190 transitions, 33224 flow [2022-01-18 23:06:26,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:26,536 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:06:26,536 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] [2022-01-18 23:06:26,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 23:06:26,536 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:06:26,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:06:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1209782823, now seen corresponding path program 9 times [2022-01-18 23:06:26,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:06:26,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139604540] [2022-01-18 23:06:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:06:26,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:06:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:06:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:06:27,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:06:27,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139604540] [2022-01-18 23:06:27,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139604540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:06:27,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:06:27,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 23:06:27,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098937292] [2022-01-18 23:06:27,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:06:27,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 23:06:27,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:06:27,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 23:06:27,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-01-18 23:06:27,191 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:06:27,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 768 places, 1190 transitions, 33224 flow. Second operand has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:27,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:06:27,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:06:27,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:06:38,737 INFO L129 PetriNetUnfolder]: 5816/18282 cut-off events. [2022-01-18 23:06:38,737 INFO L130 PetriNetUnfolder]: For 474063/474128 co-relation queries the response was YES. [2022-01-18 23:06:39,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118484 conditions, 18282 events. 5816/18282 cut-off events. For 474063/474128 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 213801 event pairs, 2163 based on Foata normal form. 25/17997 useless extension candidates. Maximal degree in co-relation 118241. Up to 10390 conditions per place. [2022-01-18 23:06:39,596 INFO L132 encePairwiseOnDemand]: 159/194 looper letters, 856 selfloop transitions, 411 changer transitions 33/1402 dead transitions. [2022-01-18 23:06:39,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 1402 transitions, 39606 flow [2022-01-18 23:06:39,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 23:06:39,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-18 23:06:39,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3259 transitions. [2022-01-18 23:06:39,599 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47997054491899854 [2022-01-18 23:06:39,599 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3259 transitions. [2022-01-18 23:06:39,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3259 transitions. [2022-01-18 23:06:39,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:06:39,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3259 transitions. [2022-01-18 23:06:39,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 93.11428571428571) internal successors, (3259), 35 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:39,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:39,605 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:39,605 INFO L186 Difference]: Start difference. First operand has 768 places, 1190 transitions, 33224 flow. Second operand 35 states and 3259 transitions. [2022-01-18 23:06:39,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 789 places, 1402 transitions, 39606 flow [2022-01-18 23:06:44,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 759 places, 1402 transitions, 38575 flow, removed 55 selfloop flow, removed 30 redundant places. [2022-01-18 23:06:44,707 INFO L242 Difference]: Finished difference. Result has 772 places, 1265 transitions, 34912 flow [2022-01-18 23:06:44,708 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=32302, PETRI_DIFFERENCE_MINUEND_PLACES=725, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=350, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=34912, PETRI_PLACES=772, PETRI_TRANSITIONS=1265} [2022-01-18 23:06:44,709 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 592 predicate places. [2022-01-18 23:06:44,709 INFO L470 AbstractCegarLoop]: Abstraction has has 772 places, 1265 transitions, 34912 flow [2022-01-18 23:06:44,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:44,709 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:06:44,709 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] [2022-01-18 23:06:44,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 23:06:44,709 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:06:44,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:06:44,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1777028373, now seen corresponding path program 10 times [2022-01-18 23:06:44,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:06:44,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897832057] [2022-01-18 23:06:44,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:06:44,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:06:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:06:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:06:45,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:06:45,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897832057] [2022-01-18 23:06:45,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897832057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:06:45,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:06:45,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:06:45,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158982483] [2022-01-18 23:06:45,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:06:45,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:06:45,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:06:45,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:06:45,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=832, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:06:45,563 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:06:45,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 772 places, 1265 transitions, 34912 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:45,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:06:45,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:06:45,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:06:57,855 INFO L129 PetriNetUnfolder]: 6081/18957 cut-off events. [2022-01-18 23:06:57,856 INFO L130 PetriNetUnfolder]: For 487092/487207 co-relation queries the response was YES. [2022-01-18 23:06:58,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123620 conditions, 18957 events. 6081/18957 cut-off events. For 487092/487207 co-relation queries the response was YES. Maximal size of possible extension queue 786. Compared 223696 event pairs, 2045 based on Foata normal form. 46/18693 useless extension candidates. Maximal degree in co-relation 123374. Up to 10566 conditions per place. [2022-01-18 23:06:58,463 INFO L132 encePairwiseOnDemand]: 159/194 looper letters, 925 selfloop transitions, 423 changer transitions 35/1485 dead transitions. [2022-01-18 23:06:58,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 799 places, 1485 transitions, 41719 flow [2022-01-18 23:06:58,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 23:06:58,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-01-18 23:06:58,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3354 transitions. [2022-01-18 23:06:58,465 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4802405498281787 [2022-01-18 23:06:58,465 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3354 transitions. [2022-01-18 23:06:58,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3354 transitions. [2022-01-18 23:06:58,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:06:58,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3354 transitions. [2022-01-18 23:06:58,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 93.16666666666667) internal successors, (3354), 36 states have internal predecessors, (3354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:58,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 194.0) internal successors, (7178), 37 states have internal predecessors, (7178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:58,471 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 194.0) internal successors, (7178), 37 states have internal predecessors, (7178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:06:58,471 INFO L186 Difference]: Start difference. First operand has 772 places, 1265 transitions, 34912 flow. Second operand 36 states and 3354 transitions. [2022-01-18 23:06:58,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 799 places, 1485 transitions, 41719 flow [2022-01-18 23:07:03,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 779 places, 1485 transitions, 40968 flow, removed 90 selfloop flow, removed 20 redundant places. [2022-01-18 23:07:03,885 INFO L242 Difference]: Finished difference. Result has 792 places, 1327 transitions, 36639 flow [2022-01-18 23:07:03,886 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=34186, PETRI_DIFFERENCE_MINUEND_PLACES=744, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=370, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=864, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=36639, PETRI_PLACES=792, PETRI_TRANSITIONS=1327} [2022-01-18 23:07:03,886 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 612 predicate places. [2022-01-18 23:07:03,887 INFO L470 AbstractCegarLoop]: Abstraction has has 792 places, 1327 transitions, 36639 flow [2022-01-18 23:07:03,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:03,887 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:07:03,887 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] [2022-01-18 23:07:03,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 23:07:03,887 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:07:03,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:07:03,887 INFO L85 PathProgramCache]: Analyzing trace with hash -773692617, now seen corresponding path program 11 times [2022-01-18 23:07:03,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:07:03,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521418861] [2022-01-18 23:07:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:07:03,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:07:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:07:04,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:07:04,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:07:04,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521418861] [2022-01-18 23:07:04,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521418861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:07:04,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:07:04,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 23:07:04,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700070929] [2022-01-18 23:07:04,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:07:04,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 23:07:04,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:07:04,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 23:07:04,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-18 23:07:04,561 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:07:04,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 792 places, 1327 transitions, 36639 flow. Second operand has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:04,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:07:04,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:07:04,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:07:17,350 INFO L129 PetriNetUnfolder]: 6108/19131 cut-off events. [2022-01-18 23:07:17,350 INFO L130 PetriNetUnfolder]: For 503863/503966 co-relation queries the response was YES. [2022-01-18 23:07:17,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128538 conditions, 19131 events. 6108/19131 cut-off events. For 503863/503966 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 226537 event pairs, 2096 based on Foata normal form. 32/18849 useless extension candidates. Maximal degree in co-relation 128285. Up to 10777 conditions per place. [2022-01-18 23:07:17,911 INFO L132 encePairwiseOnDemand]: 160/194 looper letters, 925 selfloop transitions, 403 changer transitions 66/1496 dead transitions. [2022-01-18 23:07:17,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 818 places, 1496 transitions, 42420 flow [2022-01-18 23:07:17,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 23:07:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-18 23:07:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3256 transitions. [2022-01-18 23:07:17,913 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47952871870397645 [2022-01-18 23:07:17,913 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3256 transitions. [2022-01-18 23:07:17,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3256 transitions. [2022-01-18 23:07:17,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:07:17,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3256 transitions. [2022-01-18 23:07:17,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 93.02857142857142) internal successors, (3256), 35 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:17,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:17,919 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:17,919 INFO L186 Difference]: Start difference. First operand has 792 places, 1327 transitions, 36639 flow. Second operand 35 states and 3256 transitions. [2022-01-18 23:07:17,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 818 places, 1496 transitions, 42420 flow [2022-01-18 23:07:23,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 797 places, 1496 transitions, 41385 flow, removed 200 selfloop flow, removed 21 redundant places. [2022-01-18 23:07:23,484 INFO L242 Difference]: Finished difference. Result has 807 places, 1325 transitions, 36621 flow [2022-01-18 23:07:23,485 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=35727, PETRI_DIFFERENCE_MINUEND_PLACES=763, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=401, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=36621, PETRI_PLACES=807, PETRI_TRANSITIONS=1325} [2022-01-18 23:07:23,485 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 627 predicate places. [2022-01-18 23:07:23,485 INFO L470 AbstractCegarLoop]: Abstraction has has 807 places, 1325 transitions, 36621 flow [2022-01-18 23:07:23,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:23,485 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:07:23,485 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] [2022-01-18 23:07:23,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 23:07:23,485 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:07:23,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:07:23,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1035353937, now seen corresponding path program 12 times [2022-01-18 23:07:23,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:07:23,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031583978] [2022-01-18 23:07:23,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:07:23,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:07:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:07:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:07:24,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:07:24,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031583978] [2022-01-18 23:07:24,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031583978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:07:24,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:07:24,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:07:24,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071102662] [2022-01-18 23:07:24,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:07:24,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:07:24,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:07:24,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:07:24,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=837, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:07:24,321 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:07:24,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 807 places, 1325 transitions, 36621 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:24,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:07:24,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:07:24,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:07:37,070 INFO L129 PetriNetUnfolder]: 6031/18991 cut-off events. [2022-01-18 23:07:37,070 INFO L130 PetriNetUnfolder]: For 509171/509312 co-relation queries the response was YES. [2022-01-18 23:07:37,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129024 conditions, 18991 events. 6031/18991 cut-off events. For 509171/509312 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 224157 event pairs, 2461 based on Foata normal form. 52/18723 useless extension candidates. Maximal degree in co-relation 128767. Up to 10994 conditions per place. [2022-01-18 23:07:37,904 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 926 selfloop transitions, 382 changer transitions 57/1467 dead transitions. [2022-01-18 23:07:37,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 831 places, 1467 transitions, 41568 flow [2022-01-18 23:07:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 23:07:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-18 23:07:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3243 transitions. [2022-01-18 23:07:37,906 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47761413843888073 [2022-01-18 23:07:37,906 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3243 transitions. [2022-01-18 23:07:37,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3243 transitions. [2022-01-18 23:07:37,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:07:37,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3243 transitions. [2022-01-18 23:07:37,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 92.65714285714286) internal successors, (3243), 35 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:37,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:37,912 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:37,912 INFO L186 Difference]: Start difference. First operand has 807 places, 1325 transitions, 36621 flow. Second operand 35 states and 3243 transitions. [2022-01-18 23:07:37,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 831 places, 1467 transitions, 41568 flow [2022-01-18 23:07:43,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 802 places, 1467 transitions, 40675 flow, removed 50 selfloop flow, removed 29 redundant places. [2022-01-18 23:07:43,453 INFO L242 Difference]: Finished difference. Result has 812 places, 1324 transitions, 36581 flow [2022-01-18 23:07:43,454 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=35768, PETRI_DIFFERENCE_MINUEND_PLACES=768, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=379, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=36581, PETRI_PLACES=812, PETRI_TRANSITIONS=1324} [2022-01-18 23:07:43,454 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 632 predicate places. [2022-01-18 23:07:43,454 INFO L470 AbstractCegarLoop]: Abstraction has has 812 places, 1324 transitions, 36581 flow [2022-01-18 23:07:43,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:43,455 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:07:43,455 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] [2022-01-18 23:07:43,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 23:07:43,455 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:07:43,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:07:43,455 INFO L85 PathProgramCache]: Analyzing trace with hash 990792371, now seen corresponding path program 13 times [2022-01-18 23:07:43,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:07:43,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331549104] [2022-01-18 23:07:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:07:43,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:07:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:07:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:07:44,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:07:44,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331549104] [2022-01-18 23:07:44,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331549104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:07:44,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:07:44,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 23:07:44,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348501409] [2022-01-18 23:07:44,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:07:44,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 23:07:44,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:07:44,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 23:07:44,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2022-01-18 23:07:44,365 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 194 [2022-01-18 23:07:44,366 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 812 places, 1324 transitions, 36581 flow. Second operand has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:44,366 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:07:44,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 194 [2022-01-18 23:07:44,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:07:58,035 INFO L129 PetriNetUnfolder]: 6312/19694 cut-off events. [2022-01-18 23:07:58,036 INFO L130 PetriNetUnfolder]: For 533586/533697 co-relation queries the response was YES. [2022-01-18 23:07:58,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135127 conditions, 19694 events. 6312/19694 cut-off events. For 533586/533697 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 234072 event pairs, 2333 based on Foata normal form. 46/19409 useless extension candidates. Maximal degree in co-relation 134867. Up to 10680 conditions per place. [2022-01-18 23:07:58,522 INFO L132 encePairwiseOnDemand]: 155/194 looper letters, 909 selfloop transitions, 491 changer transitions 35/1536 dead transitions. [2022-01-18 23:07:58,522 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 841 places, 1536 transitions, 43471 flow [2022-01-18 23:07:58,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 23:07:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-01-18 23:07:58,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 3840 transitions. [2022-01-18 23:07:58,622 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47128129602356406 [2022-01-18 23:07:58,622 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 3840 transitions. [2022-01-18 23:07:58,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 3840 transitions. [2022-01-18 23:07:58,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:07:58,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 3840 transitions. [2022-01-18 23:07:58,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 91.42857142857143) internal successors, (3840), 42 states have internal predecessors, (3840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:58,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 194.0) internal successors, (8342), 43 states have internal predecessors, (8342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:58,629 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 194.0) internal successors, (8342), 43 states have internal predecessors, (8342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:07:58,629 INFO L186 Difference]: Start difference. First operand has 812 places, 1324 transitions, 36581 flow. Second operand 42 states and 3840 transitions. [2022-01-18 23:07:58,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 841 places, 1536 transitions, 43471 flow [2022-01-18 23:08:04,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 814 places, 1536 transitions, 42665 flow, removed 31 selfloop flow, removed 27 redundant places. [2022-01-18 23:08:05,013 INFO L242 Difference]: Finished difference. Result has 825 places, 1377 transitions, 38374 flow [2022-01-18 23:08:05,014 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=35799, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=451, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=38374, PETRI_PLACES=825, PETRI_TRANSITIONS=1377} [2022-01-18 23:08:05,014 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 645 predicate places. [2022-01-18 23:08:05,014 INFO L470 AbstractCegarLoop]: Abstraction has has 825 places, 1377 transitions, 38374 flow [2022-01-18 23:08:05,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:05,014 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:08:05,015 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] [2022-01-18 23:08:05,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 23:08:05,015 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:08:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:08:05,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1818547083, now seen corresponding path program 14 times [2022-01-18 23:08:05,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:08:05,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170882699] [2022-01-18 23:08:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:08:05,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:08:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:08:05,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:08:05,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:08:05,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170882699] [2022-01-18 23:08:05,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170882699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:08:05,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:08:05,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 23:08:05,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505494044] [2022-01-18 23:08:05,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:08:05,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 23:08:05,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:08:05,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 23:08:05,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 23:08:05,967 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:08:05,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 825 places, 1377 transitions, 38374 flow. Second operand has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:05,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:08:05,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:08:05,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:08:19,710 INFO L129 PetriNetUnfolder]: 6330/19873 cut-off events. [2022-01-18 23:08:19,710 INFO L130 PetriNetUnfolder]: For 552043/552248 co-relation queries the response was YES. [2022-01-18 23:08:20,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137383 conditions, 19873 events. 6330/19873 cut-off events. For 552043/552248 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 236633 event pairs, 2375 based on Foata normal form. 118/19649 useless extension candidates. Maximal degree in co-relation 137120. Up to 10864 conditions per place. [2022-01-18 23:08:20,286 INFO L132 encePairwiseOnDemand]: 160/194 looper letters, 950 selfloop transitions, 431 changer transitions 66/1549 dead transitions. [2022-01-18 23:08:20,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 1549 transitions, 44329 flow [2022-01-18 23:08:20,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 23:08:20,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-18 23:08:20,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3261 transitions. [2022-01-18 23:08:20,288 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48026509572901327 [2022-01-18 23:08:20,288 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3261 transitions. [2022-01-18 23:08:20,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3261 transitions. [2022-01-18 23:08:20,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:08:20,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3261 transitions. [2022-01-18 23:08:20,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 93.17142857142858) internal successors, (3261), 35 states have internal predecessors, (3261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:20,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:20,293 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:20,293 INFO L186 Difference]: Start difference. First operand has 825 places, 1377 transitions, 38374 flow. Second operand 35 states and 3261 transitions. [2022-01-18 23:08:20,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 850 places, 1549 transitions, 44329 flow [2022-01-18 23:08:26,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 818 places, 1549 transitions, 42947 flow, removed 289 selfloop flow, removed 32 redundant places. [2022-01-18 23:08:26,923 INFO L242 Difference]: Finished difference. Result has 827 places, 1376 transitions, 38100 flow [2022-01-18 23:08:26,924 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=37178, PETRI_DIFFERENCE_MINUEND_PLACES=784, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=425, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=38100, PETRI_PLACES=827, PETRI_TRANSITIONS=1376} [2022-01-18 23:08:26,924 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 647 predicate places. [2022-01-18 23:08:26,924 INFO L470 AbstractCegarLoop]: Abstraction has has 827 places, 1376 transitions, 38100 flow [2022-01-18 23:08:26,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:26,925 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:08:26,925 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] [2022-01-18 23:08:26,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 23:08:26,925 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:08:26,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:08:26,925 INFO L85 PathProgramCache]: Analyzing trace with hash -49274785, now seen corresponding path program 15 times [2022-01-18 23:08:26,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:08:26,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270150551] [2022-01-18 23:08:26,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:08:26,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:08:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:08:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:08:27,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:08:27,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270150551] [2022-01-18 23:08:27,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270150551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:08:27,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:08:27,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:08:27,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561422301] [2022-01-18 23:08:27,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:08:27,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:08:27,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:08:27,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:08:27,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=838, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:08:27,728 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:08:27,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 827 places, 1376 transitions, 38100 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:27,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:08:27,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:08:27,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:08:41,325 INFO L129 PetriNetUnfolder]: 6264/19707 cut-off events. [2022-01-18 23:08:41,325 INFO L130 PetriNetUnfolder]: For 549594/549728 co-relation queries the response was YES. [2022-01-18 23:08:41,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136774 conditions, 19707 events. 6264/19707 cut-off events. For 549594/549728 co-relation queries the response was YES. Maximal size of possible extension queue 796. Compared 234444 event pairs, 2490 based on Foata normal form. 43/19395 useless extension candidates. Maximal degree in co-relation 136509. Up to 10838 conditions per place. [2022-01-18 23:08:41,898 INFO L132 encePairwiseOnDemand]: 160/194 looper letters, 938 selfloop transitions, 417 changer transitions 65/1522 dead transitions. [2022-01-18 23:08:41,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 1522 transitions, 43274 flow [2022-01-18 23:08:41,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 23:08:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-18 23:08:41,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3254 transitions. [2022-01-18 23:08:41,900 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4792341678939617 [2022-01-18 23:08:41,900 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3254 transitions. [2022-01-18 23:08:41,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3254 transitions. [2022-01-18 23:08:41,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:08:41,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3254 transitions. [2022-01-18 23:08:41,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 92.97142857142858) internal successors, (3254), 35 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:41,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:41,906 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 194.0) internal successors, (6984), 36 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:41,906 INFO L186 Difference]: Start difference. First operand has 827 places, 1376 transitions, 38100 flow. Second operand 35 states and 3254 transitions. [2022-01-18 23:08:41,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 850 places, 1522 transitions, 43274 flow [2022-01-18 23:08:48,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 819 places, 1522 transitions, 42327 flow, removed 45 selfloop flow, removed 31 redundant places. [2022-01-18 23:08:48,450 INFO L242 Difference]: Finished difference. Result has 831 places, 1366 transitions, 37935 flow [2022-01-18 23:08:48,452 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=37180, PETRI_DIFFERENCE_MINUEND_PLACES=785, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=417, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=37935, PETRI_PLACES=831, PETRI_TRANSITIONS=1366} [2022-01-18 23:08:48,452 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 651 predicate places. [2022-01-18 23:08:48,452 INFO L470 AbstractCegarLoop]: Abstraction has has 831 places, 1366 transitions, 37935 flow [2022-01-18 23:08:48,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:48,452 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:08:48,453 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] [2022-01-18 23:08:48,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 23:08:48,453 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:08:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:08:48,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1368905793, now seen corresponding path program 16 times [2022-01-18 23:08:48,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:08:48,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725963385] [2022-01-18 23:08:48,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:08:48,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:08:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:08:49,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:08:49,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:08:49,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725963385] [2022-01-18 23:08:49,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725963385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:08:49,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:08:49,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 23:08:49,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112997503] [2022-01-18 23:08:49,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:08:49,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 23:08:49,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:08:49,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 23:08:49,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 23:08:49,196 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:08:49,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1366 transitions, 37935 flow. Second operand has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:08:49,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:08:49,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:08:49,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:09:02,592 INFO L129 PetriNetUnfolder]: 6213/19467 cut-off events. [2022-01-18 23:09:02,592 INFO L130 PetriNetUnfolder]: For 543880/543979 co-relation queries the response was YES. [2022-01-18 23:09:03,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136761 conditions, 19467 events. 6213/19467 cut-off events. For 543880/543979 co-relation queries the response was YES. Maximal size of possible extension queue 797. Compared 231674 event pairs, 2156 based on Foata normal form. 25/19155 useless extension candidates. Maximal degree in co-relation 136492. Up to 11343 conditions per place. [2022-01-18 23:09:03,381 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 979 selfloop transitions, 380 changer transitions 61/1522 dead transitions. [2022-01-18 23:09:03,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 852 places, 1522 transitions, 43336 flow [2022-01-18 23:09:03,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 23:09:03,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-18 23:09:03,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3157 transitions. [2022-01-18 23:09:03,383 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4786234081261371 [2022-01-18 23:09:03,383 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3157 transitions. [2022-01-18 23:09:03,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3157 transitions. [2022-01-18 23:09:03,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:09:03,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3157 transitions. [2022-01-18 23:09:03,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 92.8529411764706) internal successors, (3157), 34 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:03,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:03,388 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:03,389 INFO L186 Difference]: Start difference. First operand has 831 places, 1366 transitions, 37935 flow. Second operand 34 states and 3157 transitions. [2022-01-18 23:09:03,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 852 places, 1522 transitions, 43336 flow [2022-01-18 23:09:09,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 821 places, 1522 transitions, 42454 flow, removed 29 selfloop flow, removed 31 redundant places. [2022-01-18 23:09:09,852 INFO L242 Difference]: Finished difference. Result has 831 places, 1373 transitions, 38038 flow [2022-01-18 23:09:09,853 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=37101, PETRI_DIFFERENCE_MINUEND_PLACES=788, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=370, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=988, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=38038, PETRI_PLACES=831, PETRI_TRANSITIONS=1373} [2022-01-18 23:09:09,854 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 651 predicate places. [2022-01-18 23:09:09,854 INFO L470 AbstractCegarLoop]: Abstraction has has 831 places, 1373 transitions, 38038 flow [2022-01-18 23:09:09,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:09,854 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:09:09,854 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] [2022-01-18 23:09:09,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 23:09:09,854 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:09:09,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:09:09,855 INFO L85 PathProgramCache]: Analyzing trace with hash 332856529, now seen corresponding path program 17 times [2022-01-18 23:09:09,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:09:09,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880877716] [2022-01-18 23:09:09,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:09:09,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:09:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:09:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:09:10,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:09:10,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880877716] [2022-01-18 23:09:10,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880877716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:09:10,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:09:10,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:09:10,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29670311] [2022-01-18 23:09:10,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:09:10,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:09:10,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:09:10,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:09:10,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:09:10,697 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:09:10,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1373 transitions, 38038 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:10,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:09:10,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:09:10,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:09:24,098 INFO L129 PetriNetUnfolder]: 6159/19470 cut-off events. [2022-01-18 23:09:24,099 INFO L130 PetriNetUnfolder]: For 553870/554063 co-relation queries the response was YES. [2022-01-18 23:09:25,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135845 conditions, 19470 events. 6159/19470 cut-off events. For 553870/554063 co-relation queries the response was YES. Maximal size of possible extension queue 786. Compared 231428 event pairs, 2497 based on Foata normal form. 123/19239 useless extension candidates. Maximal degree in co-relation 135576. Up to 11247 conditions per place. [2022-01-18 23:09:25,213 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 962 selfloop transitions, 399 changer transitions 62/1525 dead transitions. [2022-01-18 23:09:25,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 853 places, 1525 transitions, 43586 flow [2022-01-18 23:09:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 23:09:25,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-18 23:09:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3155 transitions. [2022-01-18 23:09:25,216 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47832019405700427 [2022-01-18 23:09:25,216 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3155 transitions. [2022-01-18 23:09:25,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3155 transitions. [2022-01-18 23:09:25,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:09:25,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3155 transitions. [2022-01-18 23:09:25,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 92.79411764705883) internal successors, (3155), 34 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:25,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:25,221 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:25,221 INFO L186 Difference]: Start difference. First operand has 831 places, 1373 transitions, 38038 flow. Second operand 34 states and 3155 transitions. [2022-01-18 23:09:25,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 853 places, 1525 transitions, 43586 flow [2022-01-18 23:09:31,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 828 places, 1525 transitions, 42779 flow, removed 39 selfloop flow, removed 25 redundant places. [2022-01-18 23:09:31,759 INFO L242 Difference]: Finished difference. Result has 839 places, 1369 transitions, 38080 flow [2022-01-18 23:09:31,760 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=37264, PETRI_DIFFERENCE_MINUEND_PLACES=795, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=396, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=974, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=38080, PETRI_PLACES=839, PETRI_TRANSITIONS=1369} [2022-01-18 23:09:31,760 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 659 predicate places. [2022-01-18 23:09:31,760 INFO L470 AbstractCegarLoop]: Abstraction has has 839 places, 1369 transitions, 38080 flow [2022-01-18 23:09:31,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:31,761 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:09:31,761 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] [2022-01-18 23:09:31,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 23:09:31,761 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:09:31,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:09:31,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1740334743, now seen corresponding path program 18 times [2022-01-18 23:09:31,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:09:31,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065688386] [2022-01-18 23:09:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:09:31,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:09:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:09:32,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:09:32,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:09:32,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065688386] [2022-01-18 23:09:32,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065688386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:09:32,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:09:32,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 23:09:32,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804016147] [2022-01-18 23:09:32,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:09:32,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 23:09:32,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:09:32,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 23:09:32,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2022-01-18 23:09:32,632 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 194 [2022-01-18 23:09:32,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 839 places, 1369 transitions, 38080 flow. Second operand has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:32,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:09:32,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 194 [2022-01-18 23:09:32,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:09:46,411 INFO L129 PetriNetUnfolder]: 6084/19218 cut-off events. [2022-01-18 23:09:46,411 INFO L130 PetriNetUnfolder]: For 544426/544561 co-relation queries the response was YES. [2022-01-18 23:09:46,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134489 conditions, 19218 events. 6084/19218 cut-off events. For 544426/544561 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 227908 event pairs, 2460 based on Foata normal form. 55/18925 useless extension candidates. Maximal degree in co-relation 134217. Up to 11202 conditions per place. [2022-01-18 23:09:46,932 INFO L132 encePairwiseOnDemand]: 157/194 looper letters, 921 selfloop transitions, 411 changer transitions 59/1492 dead transitions. [2022-01-18 23:09:46,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 866 places, 1492 transitions, 42774 flow [2022-01-18 23:09:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 23:09:46,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-01-18 23:09:46,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 3542 transitions. [2022-01-18 23:09:46,934 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4681469733016125 [2022-01-18 23:09:46,934 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 3542 transitions. [2022-01-18 23:09:46,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 3542 transitions. [2022-01-18 23:09:46,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:09:46,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 3542 transitions. [2022-01-18 23:09:46,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 90.82051282051282) internal successors, (3542), 39 states have internal predecessors, (3542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:46,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 194.0) internal successors, (7760), 40 states have internal predecessors, (7760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:46,940 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 194.0) internal successors, (7760), 40 states have internal predecessors, (7760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:46,941 INFO L186 Difference]: Start difference. First operand has 839 places, 1369 transitions, 38080 flow. Second operand 39 states and 3542 transitions. [2022-01-18 23:09:46,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 866 places, 1492 transitions, 42774 flow [2022-01-18 23:09:53,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 1492 transitions, 41974 flow, removed 35 selfloop flow, removed 26 redundant places. [2022-01-18 23:09:53,463 INFO L242 Difference]: Finished difference. Result has 847 places, 1358 transitions, 37865 flow [2022-01-18 23:09:53,464 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=37296, PETRI_DIFFERENCE_MINUEND_PLACES=802, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=411, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=958, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=37865, PETRI_PLACES=847, PETRI_TRANSITIONS=1358} [2022-01-18 23:09:53,464 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 667 predicate places. [2022-01-18 23:09:53,464 INFO L470 AbstractCegarLoop]: Abstraction has has 847 places, 1358 transitions, 37865 flow [2022-01-18 23:09:53,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:53,464 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:09:53,464 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] [2022-01-18 23:09:53,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 23:09:53,465 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:09:53,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:09:53,465 INFO L85 PathProgramCache]: Analyzing trace with hash 309655793, now seen corresponding path program 19 times [2022-01-18 23:09:53,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:09:53,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392453209] [2022-01-18 23:09:53,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:09:53,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:09:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:09:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:09:54,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:09:54,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392453209] [2022-01-18 23:09:54,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392453209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:09:54,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:09:54,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 23:09:54,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84099016] [2022-01-18 23:09:54,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:09:54,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 23:09:54,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:09:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 23:09:54,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-18 23:09:54,207 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:09:54,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 847 places, 1358 transitions, 37865 flow. Second operand has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:09:54,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:09:54,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:09:54,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:10:07,534 INFO L129 PetriNetUnfolder]: 6036/19128 cut-off events. [2022-01-18 23:10:07,534 INFO L130 PetriNetUnfolder]: For 542641/542798 co-relation queries the response was YES. [2022-01-18 23:10:08,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133744 conditions, 19128 events. 6036/19128 cut-off events. For 542641/542798 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 226493 event pairs, 2505 based on Foata normal form. 111/18895 useless extension candidates. Maximal degree in co-relation 133474. Up to 11102 conditions per place. [2022-01-18 23:10:08,150 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 940 selfloop transitions, 384 changer transitions 62/1488 dead transitions. [2022-01-18 23:10:08,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 862 places, 1488 transitions, 42862 flow [2022-01-18 23:10:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 23:10:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-18 23:10:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3056 transitions. [2022-01-18 23:10:08,152 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4773508278662918 [2022-01-18 23:10:08,152 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3056 transitions. [2022-01-18 23:10:08,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3056 transitions. [2022-01-18 23:10:08,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:10:08,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3056 transitions. [2022-01-18 23:10:08,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 92.60606060606061) internal successors, (3056), 33 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:08,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:08,157 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:08,157 INFO L186 Difference]: Start difference. First operand has 847 places, 1358 transitions, 37865 flow. Second operand 33 states and 3056 transitions. [2022-01-18 23:10:08,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 862 places, 1488 transitions, 42862 flow [2022-01-18 23:10:14,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 828 places, 1488 transitions, 41965 flow, removed 21 selfloop flow, removed 34 redundant places. [2022-01-18 23:10:14,472 INFO L242 Difference]: Finished difference. Result has 836 places, 1347 transitions, 37519 flow [2022-01-18 23:10:14,473 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=36992, PETRI_DIFFERENCE_MINUEND_PLACES=796, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=384, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=974, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=37519, PETRI_PLACES=836, PETRI_TRANSITIONS=1347} [2022-01-18 23:10:14,473 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 656 predicate places. [2022-01-18 23:10:14,473 INFO L470 AbstractCegarLoop]: Abstraction has has 836 places, 1347 transitions, 37519 flow [2022-01-18 23:10:14,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:14,473 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:10:14,474 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] [2022-01-18 23:10:14,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 23:10:14,474 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:10:14,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:10:14,474 INFO L85 PathProgramCache]: Analyzing trace with hash 752060827, now seen corresponding path program 20 times [2022-01-18 23:10:14,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:10:14,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814470155] [2022-01-18 23:10:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:10:14,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:10:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:10:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:10:15,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:10:15,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814470155] [2022-01-18 23:10:15,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814470155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:10:15,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:10:15,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:10:15,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082770634] [2022-01-18 23:10:15,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:10:15,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:10:15,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:10:15,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:10:15,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:10:15,307 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:10:15,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 1347 transitions, 37519 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:15,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:10:15,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:10:15,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:10:28,314 INFO L129 PetriNetUnfolder]: 5940/18691 cut-off events. [2022-01-18 23:10:28,315 INFO L130 PetriNetUnfolder]: For 526094/526187 co-relation queries the response was YES. [2022-01-18 23:10:28,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131679 conditions, 18691 events. 5940/18691 cut-off events. For 526094/526187 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 220701 event pairs, 2003 based on Foata normal form. 35/18415 useless extension candidates. Maximal degree in co-relation 131409. Up to 10474 conditions per place. [2022-01-18 23:10:28,908 INFO L132 encePairwiseOnDemand]: 159/194 looper letters, 922 selfloop transitions, 413 changer transitions 51/1488 dead transitions. [2022-01-18 23:10:28,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 856 places, 1488 transitions, 42299 flow [2022-01-18 23:10:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 23:10:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-01-18 23:10:28,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 3442 transitions. [2022-01-18 23:10:28,910 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47952075787127335 [2022-01-18 23:10:28,910 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 3442 transitions. [2022-01-18 23:10:28,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 3442 transitions. [2022-01-18 23:10:28,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:10:28,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 3442 transitions. [2022-01-18 23:10:28,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 93.02702702702703) internal successors, (3442), 37 states have internal predecessors, (3442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:28,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 194.0) internal successors, (7372), 38 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:28,916 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 194.0) internal successors, (7372), 38 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:28,916 INFO L186 Difference]: Start difference. First operand has 836 places, 1347 transitions, 37519 flow. Second operand 37 states and 3442 transitions. [2022-01-18 23:10:28,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 856 places, 1488 transitions, 42299 flow [2022-01-18 23:10:35,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 826 places, 1488 transitions, 41456 flow, removed 24 selfloop flow, removed 30 redundant places. [2022-01-18 23:10:35,212 INFO L242 Difference]: Finished difference. Result has 831 places, 1335 transitions, 37215 flow [2022-01-18 23:10:35,213 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=36688, PETRI_DIFFERENCE_MINUEND_PLACES=790, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=934, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=37215, PETRI_PLACES=831, PETRI_TRANSITIONS=1335} [2022-01-18 23:10:35,214 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 651 predicate places. [2022-01-18 23:10:35,214 INFO L470 AbstractCegarLoop]: Abstraction has has 831 places, 1335 transitions, 37215 flow [2022-01-18 23:10:35,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:35,214 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:10:35,214 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] [2022-01-18 23:10:35,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 23:10:35,214 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:10:35,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:10:35,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1117323375, now seen corresponding path program 21 times [2022-01-18 23:10:35,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:10:35,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874394540] [2022-01-18 23:10:35,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:10:35,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:10:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:10:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:10:36,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:10:36,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874394540] [2022-01-18 23:10:36,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874394540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:10:36,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:10:36,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 23:10:36,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936562104] [2022-01-18 23:10:36,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:10:36,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 23:10:36,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:10:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 23:10:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1000, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 23:10:36,052 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 194 [2022-01-18 23:10:36,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1335 transitions, 37215 flow. Second operand has 34 states, 34 states have (on average 88.20588235294117) internal successors, (2999), 34 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:36,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:10:36,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 194 [2022-01-18 23:10:36,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:10:48,874 INFO L129 PetriNetUnfolder]: 5885/18583 cut-off events. [2022-01-18 23:10:48,874 INFO L130 PetriNetUnfolder]: For 516069/516138 co-relation queries the response was YES. [2022-01-18 23:10:49,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129519 conditions, 18583 events. 5885/18583 cut-off events. For 516069/516138 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 218669 event pairs, 2184 based on Foata normal form. 19/18283 useless extension candidates. Maximal degree in co-relation 129255. Up to 10623 conditions per place. [2022-01-18 23:10:49,281 INFO L132 encePairwiseOnDemand]: 157/194 looper letters, 938 selfloop transitions, 424 changer transitions 59/1483 dead transitions. [2022-01-18 23:10:49,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 860 places, 1483 transitions, 42244 flow [2022-01-18 23:10:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 23:10:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-01-18 23:10:49,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3665 transitions. [2022-01-18 23:10:49,284 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4722938144329897 [2022-01-18 23:10:49,284 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3665 transitions. [2022-01-18 23:10:49,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3665 transitions. [2022-01-18 23:10:49,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:10:49,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3665 transitions. [2022-01-18 23:10:49,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 91.625) internal successors, (3665), 40 states have internal predecessors, (3665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:49,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 194.0) internal successors, (7954), 41 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:49,290 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 194.0) internal successors, (7954), 41 states have internal predecessors, (7954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:49,290 INFO L186 Difference]: Start difference. First operand has 831 places, 1335 transitions, 37215 flow. Second operand 40 states and 3665 transitions. [2022-01-18 23:10:49,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 860 places, 1483 transitions, 42244 flow [2022-01-18 23:10:55,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 826 places, 1483 transitions, 41356 flow, removed 19 selfloop flow, removed 34 redundant places. [2022-01-18 23:10:55,099 INFO L242 Difference]: Finished difference. Result has 830 places, 1324 transitions, 36913 flow [2022-01-18 23:10:55,100 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=36343, PETRI_DIFFERENCE_MINUEND_PLACES=787, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=424, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=36913, PETRI_PLACES=830, PETRI_TRANSITIONS=1324} [2022-01-18 23:10:55,100 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 650 predicate places. [2022-01-18 23:10:55,100 INFO L470 AbstractCegarLoop]: Abstraction has has 830 places, 1324 transitions, 36913 flow [2022-01-18 23:10:55,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 88.20588235294117) internal successors, (2999), 34 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:55,101 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:10:55,101 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:10:55,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 23:10:55,101 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:10:55,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:10:55,101 INFO L85 PathProgramCache]: Analyzing trace with hash 44321061, now seen corresponding path program 22 times [2022-01-18 23:10:55,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:10:55,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046461945] [2022-01-18 23:10:55,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:10:55,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:10:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:10:55,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:10:55,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:10:55,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046461945] [2022-01-18 23:10:55,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046461945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:10:55,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:10:55,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:10:55,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125543026] [2022-01-18 23:10:55,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:10:55,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:10:55,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:10:55,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:10:55,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=832, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:10:55,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:10:55,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 830 places, 1324 transitions, 36913 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:10:55,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:10:55,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:10:55,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:11:08,463 INFO L129 PetriNetUnfolder]: 5902/18698 cut-off events. [2022-01-18 23:11:08,464 INFO L130 PetriNetUnfolder]: For 506019/506073 co-relation queries the response was YES. [2022-01-18 23:11:08,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129094 conditions, 18698 events. 5902/18698 cut-off events. For 506019/506073 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 221136 event pairs, 2006 based on Foata normal form. 30/18404 useless extension candidates. Maximal degree in co-relation 128833. Up to 10935 conditions per place. [2022-01-18 23:11:09,008 INFO L132 encePairwiseOnDemand]: 159/194 looper letters, 927 selfloop transitions, 401 changer transitions 36/1466 dead transitions. [2022-01-18 23:11:09,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 852 places, 1466 transitions, 41871 flow [2022-01-18 23:11:09,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 23:11:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-18 23:11:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3077 transitions. [2022-01-18 23:11:09,010 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48063105279600127 [2022-01-18 23:11:09,010 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3077 transitions. [2022-01-18 23:11:09,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3077 transitions. [2022-01-18 23:11:09,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:11:09,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3077 transitions. [2022-01-18 23:11:09,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 93.24242424242425) internal successors, (3077), 33 states have internal predecessors, (3077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:09,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:09,015 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:09,015 INFO L186 Difference]: Start difference. First operand has 830 places, 1324 transitions, 36913 flow. Second operand 33 states and 3077 transitions. [2022-01-18 23:11:09,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 852 places, 1466 transitions, 41871 flow [2022-01-18 23:11:14,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 814 places, 1466 transitions, 40814 flow, removed 36 selfloop flow, removed 38 redundant places. [2022-01-18 23:11:14,815 INFO L242 Difference]: Finished difference. Result has 824 places, 1345 transitions, 37266 flow [2022-01-18 23:11:14,816 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=35880, PETRI_DIFFERENCE_MINUEND_PLACES=782, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=382, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=37266, PETRI_PLACES=824, PETRI_TRANSITIONS=1345} [2022-01-18 23:11:14,816 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 644 predicate places. [2022-01-18 23:11:14,816 INFO L470 AbstractCegarLoop]: Abstraction has has 824 places, 1345 transitions, 37266 flow [2022-01-18 23:11:14,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:14,817 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:11:14,817 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] [2022-01-18 23:11:14,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 23:11:14,817 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:11:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:11:14,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1645266765, now seen corresponding path program 23 times [2022-01-18 23:11:14,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:11:14,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286640210] [2022-01-18 23:11:14,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:11:14,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:11:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:11:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:11:15,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:11:15,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286640210] [2022-01-18 23:11:15,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286640210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:11:15,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:11:15,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 23:11:15,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609702554] [2022-01-18 23:11:15,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:11:15,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 23:11:15,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:11:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 23:11:15,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-18 23:11:15,546 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:11:15,547 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 824 places, 1345 transitions, 37266 flow. Second operand has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:15,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:11:15,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:11:15,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:11:27,850 INFO L129 PetriNetUnfolder]: 5907/18737 cut-off events. [2022-01-18 23:11:27,850 INFO L130 PetriNetUnfolder]: For 505861/505916 co-relation queries the response was YES. [2022-01-18 23:11:28,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129592 conditions, 18737 events. 5907/18737 cut-off events. For 505861/505916 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 221831 event pairs, 2082 based on Foata normal form. 25/18427 useless extension candidates. Maximal degree in co-relation 129332. Up to 11533 conditions per place. [2022-01-18 23:11:28,353 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 938 selfloop transitions, 357 changer transitions 57/1454 dead transitions. [2022-01-18 23:11:28,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 847 places, 1454 transitions, 41534 flow [2022-01-18 23:11:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 23:11:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-01-18 23:11:28,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 2969 transitions. [2022-01-18 23:11:28,355 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47825386597938147 [2022-01-18 23:11:28,355 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 2969 transitions. [2022-01-18 23:11:28,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 2969 transitions. [2022-01-18 23:11:28,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:11:28,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 2969 transitions. [2022-01-18 23:11:28,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 92.78125) internal successors, (2969), 32 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:28,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 194.0) internal successors, (6402), 33 states have internal predecessors, (6402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:28,360 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 194.0) internal successors, (6402), 33 states have internal predecessors, (6402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:28,360 INFO L186 Difference]: Start difference. First operand has 824 places, 1345 transitions, 37266 flow. Second operand 32 states and 2969 transitions. [2022-01-18 23:11:28,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 847 places, 1454 transitions, 41534 flow [2022-01-18 23:11:34,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 823 places, 1454 transitions, 40625 flow, removed 131 selfloop flow, removed 24 redundant places. [2022-01-18 23:11:34,063 INFO L242 Difference]: Finished difference. Result has 832 places, 1339 transitions, 37068 flow [2022-01-18 23:11:34,064 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=36426, PETRI_DIFFERENCE_MINUEND_PLACES=792, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=357, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=988, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=37068, PETRI_PLACES=832, PETRI_TRANSITIONS=1339} [2022-01-18 23:11:34,065 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 652 predicate places. [2022-01-18 23:11:34,065 INFO L470 AbstractCegarLoop]: Abstraction has has 832 places, 1339 transitions, 37068 flow [2022-01-18 23:11:34,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:34,065 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:11:34,065 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] [2022-01-18 23:11:34,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 23:11:34,065 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:11:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:11:34,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1039945757, now seen corresponding path program 24 times [2022-01-18 23:11:34,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:11:34,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363054718] [2022-01-18 23:11:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:11:34,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:11:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:11:34,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:11:34,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:11:34,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363054718] [2022-01-18 23:11:34,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363054718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:11:34,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:11:34,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 23:11:34,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615666832] [2022-01-18 23:11:34,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:11:34,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 23:11:34,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:11:34,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 23:11:34,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-18 23:11:34,738 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:11:34,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 832 places, 1339 transitions, 37068 flow. Second operand has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:34,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:11:34,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:11:34,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:11:46,839 INFO L129 PetriNetUnfolder]: 5844/18558 cut-off events. [2022-01-18 23:11:46,840 INFO L130 PetriNetUnfolder]: For 508307/508350 co-relation queries the response was YES. [2022-01-18 23:11:47,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129746 conditions, 18558 events. 5844/18558 cut-off events. For 508307/508350 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 219245 event pairs, 2039 based on Foata normal form. 19/18250 useless extension candidates. Maximal degree in co-relation 129483. Up to 11407 conditions per place. [2022-01-18 23:11:47,334 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 928 selfloop transitions, 359 changer transitions 65/1454 dead transitions. [2022-01-18 23:11:47,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 1454 transitions, 41432 flow [2022-01-18 23:11:47,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 23:11:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-01-18 23:11:47,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2882 transitions. [2022-01-18 23:11:47,336 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47921516461589625 [2022-01-18 23:11:47,336 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2882 transitions. [2022-01-18 23:11:47,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2882 transitions. [2022-01-18 23:11:47,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:11:47,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2882 transitions. [2022-01-18 23:11:47,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 92.96774193548387) internal successors, (2882), 31 states have internal predecessors, (2882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:47,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 194.0) internal successors, (6208), 32 states have internal predecessors, (6208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:47,341 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 194.0) internal successors, (6208), 32 states have internal predecessors, (6208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:47,341 INFO L186 Difference]: Start difference. First operand has 832 places, 1339 transitions, 37068 flow. Second operand 31 states and 2882 transitions. [2022-01-18 23:11:47,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 850 places, 1454 transitions, 41432 flow [2022-01-18 23:11:53,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 823 places, 1454 transitions, 40644 flow, removed 28 selfloop flow, removed 27 redundant places. [2022-01-18 23:11:53,174 INFO L242 Difference]: Finished difference. Result has 834 places, 1335 transitions, 37001 flow [2022-01-18 23:11:53,175 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=36320, PETRI_DIFFERENCE_MINUEND_PLACES=793, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=37001, PETRI_PLACES=834, PETRI_TRANSITIONS=1335} [2022-01-18 23:11:53,175 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 654 predicate places. [2022-01-18 23:11:53,176 INFO L470 AbstractCegarLoop]: Abstraction has has 834 places, 1335 transitions, 37001 flow [2022-01-18 23:11:53,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:53,176 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:11:53,176 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] [2022-01-18 23:11:53,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 23:11:53,176 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:11:53,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:11:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1824071681, now seen corresponding path program 25 times [2022-01-18 23:11:53,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:11:53,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676070007] [2022-01-18 23:11:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:11:53,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:11:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:11:54,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:11:54,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:11:54,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676070007] [2022-01-18 23:11:54,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676070007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:11:54,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:11:54,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:11:54,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313541226] [2022-01-18 23:11:54,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:11:54,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:11:54,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:11:54,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:11:54,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:11:54,039 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:11:54,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 1335 transitions, 37001 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:11:54,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:11:54,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:11:54,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:12:06,597 INFO L129 PetriNetUnfolder]: 5781/18536 cut-off events. [2022-01-18 23:12:06,597 INFO L130 PetriNetUnfolder]: For 514390/514451 co-relation queries the response was YES. [2022-01-18 23:12:06,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128855 conditions, 18536 events. 5781/18536 cut-off events. For 514390/514451 co-relation queries the response was YES. Maximal size of possible extension queue 747. Compared 219055 event pairs, 2120 based on Foata normal form. 25/18232 useless extension candidates. Maximal degree in co-relation 128589. Up to 9610 conditions per place. [2022-01-18 23:12:07,011 INFO L132 encePairwiseOnDemand]: 159/194 looper letters, 913 selfloop transitions, 457 changer transitions 33/1505 dead transitions. [2022-01-18 23:12:07,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 855 places, 1505 transitions, 42803 flow [2022-01-18 23:12:07,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 23:12:07,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-18 23:12:07,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3174 transitions. [2022-01-18 23:12:07,013 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48120072771376593 [2022-01-18 23:12:07,014 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3174 transitions. [2022-01-18 23:12:07,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3174 transitions. [2022-01-18 23:12:07,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:12:07,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3174 transitions. [2022-01-18 23:12:07,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 93.3529411764706) internal successors, (3174), 34 states have internal predecessors, (3174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:07,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:07,019 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:07,019 INFO L186 Difference]: Start difference. First operand has 834 places, 1335 transitions, 37001 flow. Second operand 34 states and 3174 transitions. [2022-01-18 23:12:07,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 855 places, 1505 transitions, 42803 flow [2022-01-18 23:12:12,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 830 places, 1505 transitions, 42053 flow, removed 32 selfloop flow, removed 25 redundant places. [2022-01-18 23:12:12,897 INFO L242 Difference]: Finished difference. Result has 841 places, 1373 transitions, 38415 flow [2022-01-18 23:12:12,898 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=36277, PETRI_DIFFERENCE_MINUEND_PLACES=797, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=424, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=892, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=38415, PETRI_PLACES=841, PETRI_TRANSITIONS=1373} [2022-01-18 23:12:12,898 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 661 predicate places. [2022-01-18 23:12:12,898 INFO L470 AbstractCegarLoop]: Abstraction has has 841 places, 1373 transitions, 38415 flow [2022-01-18 23:12:12,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:12,899 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:12:12,899 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] [2022-01-18 23:12:12,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 23:12:12,899 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:12:12,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:12:12,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1956254323, now seen corresponding path program 26 times [2022-01-18 23:12:12,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:12:12,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52934257] [2022-01-18 23:12:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:12:12,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:12:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:12:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:12:13,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:12:13,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52934257] [2022-01-18 23:12:13,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52934257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:12:13,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:12:13,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:12:13,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195483086] [2022-01-18 23:12:13,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:12:13,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:12:13,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:12:13,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:12:13,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=837, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:12:13,736 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:12:13,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 841 places, 1373 transitions, 38415 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:13,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:12:13,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:12:13,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:12:26,665 INFO L129 PetriNetUnfolder]: 5808/18713 cut-off events. [2022-01-18 23:12:26,665 INFO L130 PetriNetUnfolder]: For 530621/530674 co-relation queries the response was YES. [2022-01-18 23:12:27,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131254 conditions, 18713 events. 5808/18713 cut-off events. For 530621/530674 co-relation queries the response was YES. Maximal size of possible extension queue 773. Compared 221784 event pairs, 2367 based on Foata normal form. 22/18394 useless extension candidates. Maximal degree in co-relation 130986. Up to 10799 conditions per place. [2022-01-18 23:12:27,240 INFO L132 encePairwiseOnDemand]: 160/194 looper letters, 956 selfloop transitions, 389 changer transitions 65/1512 dead transitions. [2022-01-18 23:12:27,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 866 places, 1512 transitions, 43357 flow [2022-01-18 23:12:27,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 23:12:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-18 23:12:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3161 transitions. [2022-01-18 23:12:27,244 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4792298362644027 [2022-01-18 23:12:27,244 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3161 transitions. [2022-01-18 23:12:27,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3161 transitions. [2022-01-18 23:12:27,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:12:27,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3161 transitions. [2022-01-18 23:12:27,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 92.97058823529412) internal successors, (3161), 34 states have internal predecessors, (3161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:27,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:27,249 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 194.0) internal successors, (6790), 35 states have internal predecessors, (6790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:27,249 INFO L186 Difference]: Start difference. First operand has 841 places, 1373 transitions, 38415 flow. Second operand 34 states and 3161 transitions. [2022-01-18 23:12:27,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 866 places, 1512 transitions, 43357 flow [2022-01-18 23:12:33,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 840 places, 1512 transitions, 42183 flow, removed 252 selfloop flow, removed 26 redundant places. [2022-01-18 23:12:33,311 INFO L242 Difference]: Finished difference. Result has 850 places, 1371 transitions, 38117 flow [2022-01-18 23:12:33,312 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=37263, PETRI_DIFFERENCE_MINUEND_PLACES=807, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=387, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=984, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=38117, PETRI_PLACES=850, PETRI_TRANSITIONS=1371} [2022-01-18 23:12:33,312 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 670 predicate places. [2022-01-18 23:12:33,313 INFO L470 AbstractCegarLoop]: Abstraction has has 850 places, 1371 transitions, 38117 flow [2022-01-18 23:12:33,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:33,313 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:12:33,313 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] [2022-01-18 23:12:33,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 23:12:33,313 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:12:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:12:33,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2144186337, now seen corresponding path program 27 times [2022-01-18 23:12:33,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:12:33,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698496768] [2022-01-18 23:12:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:12:33,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:12:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:12:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:12:33,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:12:33,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698496768] [2022-01-18 23:12:33,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698496768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:12:33,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:12:33,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 23:12:33,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719809181] [2022-01-18 23:12:33,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:12:33,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 23:12:33,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:12:33,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 23:12:33,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 23:12:33,996 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:12:33,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 850 places, 1371 transitions, 38117 flow. Second operand has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:33,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:12:33,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:12:33,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:12:46,643 INFO L129 PetriNetUnfolder]: 5732/18485 cut-off events. [2022-01-18 23:12:46,643 INFO L130 PetriNetUnfolder]: For 520785/520828 co-relation queries the response was YES. [2022-01-18 23:12:47,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130390 conditions, 18485 events. 5732/18485 cut-off events. For 520785/520828 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 218852 event pairs, 2101 based on Foata normal form. 20/18187 useless extension candidates. Maximal degree in co-relation 130120. Up to 9728 conditions per place. [2022-01-18 23:12:47,265 INFO L132 encePairwiseOnDemand]: 160/194 looper letters, 908 selfloop transitions, 437 changer transitions 65/1512 dead transitions. [2022-01-18 23:12:47,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 872 places, 1512 transitions, 42958 flow [2022-01-18 23:12:47,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 23:12:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-18 23:12:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3076 transitions. [2022-01-18 23:12:47,268 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4804748516088722 [2022-01-18 23:12:47,268 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3076 transitions. [2022-01-18 23:12:47,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3076 transitions. [2022-01-18 23:12:47,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:12:47,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3076 transitions. [2022-01-18 23:12:47,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 93.21212121212122) internal successors, (3076), 33 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) [2022-01-18 23:12:47,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:47,273 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:47,273 INFO L186 Difference]: Start difference. First operand has 850 places, 1371 transitions, 38117 flow. Second operand 33 states and 3076 transitions. [2022-01-18 23:12:47,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 872 places, 1512 transitions, 42958 flow [2022-01-18 23:12:53,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 1512 transitions, 42130 flow, removed 50 selfloop flow, removed 25 redundant places. [2022-01-18 23:12:53,288 INFO L242 Difference]: Finished difference. Result has 855 places, 1367 transitions, 38046 flow [2022-01-18 23:12:53,289 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=37325, PETRI_DIFFERENCE_MINUEND_PLACES=815, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=38046, PETRI_PLACES=855, PETRI_TRANSITIONS=1367} [2022-01-18 23:12:53,289 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 675 predicate places. [2022-01-18 23:12:53,289 INFO L470 AbstractCegarLoop]: Abstraction has has 855 places, 1367 transitions, 38046 flow [2022-01-18 23:12:53,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 89.64285714285714) internal successors, (2510), 28 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:53,290 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:12:53,290 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] [2022-01-18 23:12:53,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 23:12:53,290 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:12:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:12:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash -825218341, now seen corresponding path program 28 times [2022-01-18 23:12:53,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:12:53,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130104902] [2022-01-18 23:12:53,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:12:53,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:12:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:12:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:12:54,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:12:54,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130104902] [2022-01-18 23:12:54,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130104902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:12:54,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:12:54,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 23:12:54,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264563483] [2022-01-18 23:12:54,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:12:54,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 23:12:54,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:12:54,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 23:12:54,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2022-01-18 23:12:54,195 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 194 [2022-01-18 23:12:54,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 855 places, 1367 transitions, 38046 flow. Second operand has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:12:54,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:12:54,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 194 [2022-01-18 23:12:54,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:13:06,893 INFO L129 PetriNetUnfolder]: 5648/18154 cut-off events. [2022-01-18 23:13:06,894 INFO L130 PetriNetUnfolder]: For 519303/519348 co-relation queries the response was YES. [2022-01-18 23:13:07,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129746 conditions, 18154 events. 5648/18154 cut-off events. For 519303/519348 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 214355 event pairs, 1835 based on Foata normal form. 21/17851 useless extension candidates. Maximal degree in co-relation 129475. Up to 9656 conditions per place. [2022-01-18 23:13:07,282 INFO L132 encePairwiseOnDemand]: 156/194 looper letters, 855 selfloop transitions, 463 changer transitions 67/1486 dead transitions. [2022-01-18 23:13:07,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 883 places, 1486 transitions, 42492 flow [2022-01-18 23:13:07,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 23:13:07,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-01-18 23:13:07,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 3553 transitions. [2022-01-18 23:13:07,285 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4696008458895057 [2022-01-18 23:13:07,285 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 3553 transitions. [2022-01-18 23:13:07,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 3553 transitions. [2022-01-18 23:13:07,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:13:07,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 3553 transitions. [2022-01-18 23:13:07,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 91.1025641025641) internal successors, (3553), 39 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:07,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 194.0) internal successors, (7760), 40 states have internal predecessors, (7760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:07,290 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 194.0) internal successors, (7760), 40 states have internal predecessors, (7760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:07,290 INFO L186 Difference]: Start difference. First operand has 855 places, 1367 transitions, 38046 flow. Second operand 39 states and 3553 transitions. [2022-01-18 23:13:07,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 883 places, 1486 transitions, 42492 flow [2022-01-18 23:13:13,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 853 places, 1486 transitions, 41516 flow, removed 46 selfloop flow, removed 30 redundant places. [2022-01-18 23:13:13,395 INFO L242 Difference]: Finished difference. Result has 863 places, 1352 transitions, 37733 flow [2022-01-18 23:13:13,396 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=37097, PETRI_DIFFERENCE_MINUEND_PLACES=815, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=463, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=904, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=37733, PETRI_PLACES=863, PETRI_TRANSITIONS=1352} [2022-01-18 23:13:13,396 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 683 predicate places. [2022-01-18 23:13:13,396 INFO L470 AbstractCegarLoop]: Abstraction has has 863 places, 1352 transitions, 37733 flow [2022-01-18 23:13:13,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 88.34375) internal successors, (2827), 32 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:13,397 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:13:13,397 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 23:13:13,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 23:13:13,397 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:13:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:13:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash -675909191, now seen corresponding path program 29 times [2022-01-18 23:13:13,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:13:13,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975251852] [2022-01-18 23:13:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:13:13,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:13:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:13:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:13:14,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:13:14,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975251852] [2022-01-18 23:13:14,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975251852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:13:14,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:13:14,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 23:13:14,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306219434] [2022-01-18 23:13:14,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:13:14,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 23:13:14,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:13:14,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 23:13:14,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-18 23:13:14,099 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:13:14,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 863 places, 1352 transitions, 37733 flow. Second operand has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:14,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:13:14,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:13:14,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:13:26,476 INFO L129 PetriNetUnfolder]: 5558/17972 cut-off events. [2022-01-18 23:13:26,476 INFO L130 PetriNetUnfolder]: For 521444/521513 co-relation queries the response was YES. [2022-01-18 23:13:26,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128392 conditions, 17972 events. 5558/17972 cut-off events. For 521444/521513 co-relation queries the response was YES. Maximal size of possible extension queue 710. Compared 211514 event pairs, 2240 based on Foata normal form. 25/17672 useless extension candidates. Maximal degree in co-relation 128120. Up to 10711 conditions per place. [2022-01-18 23:13:26,947 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 933 selfloop transitions, 359 changer transitions 57/1450 dead transitions. [2022-01-18 23:13:26,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 882 places, 1450 transitions, 41525 flow [2022-01-18 23:13:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 23:13:26,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-18 23:13:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3057 transitions. [2022-01-18 23:13:26,949 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4775070290534208 [2022-01-18 23:13:26,949 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3057 transitions. [2022-01-18 23:13:26,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3057 transitions. [2022-01-18 23:13:26,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:13:26,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3057 transitions. [2022-01-18 23:13:26,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 92.63636363636364) internal successors, (3057), 33 states have internal predecessors, (3057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:26,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:26,954 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:26,954 INFO L186 Difference]: Start difference. First operand has 863 places, 1352 transitions, 37733 flow. Second operand 33 states and 3057 transitions. [2022-01-18 23:13:26,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 882 places, 1450 transitions, 41525 flow [2022-01-18 23:13:32,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 847 places, 1450 transitions, 40583 flow, removed 24 selfloop flow, removed 35 redundant places. [2022-01-18 23:13:32,703 INFO L242 Difference]: Finished difference. Result has 853 places, 1334 transitions, 37054 flow [2022-01-18 23:13:32,704 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=36805, PETRI_DIFFERENCE_MINUEND_PLACES=815, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=359, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=37054, PETRI_PLACES=853, PETRI_TRANSITIONS=1334} [2022-01-18 23:13:32,704 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 673 predicate places. [2022-01-18 23:13:32,704 INFO L470 AbstractCegarLoop]: Abstraction has has 853 places, 1334 transitions, 37054 flow [2022-01-18 23:13:32,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:32,704 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:13:32,704 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] [2022-01-18 23:13:32,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 23:13:32,705 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:13:32,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:13:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1563597399, now seen corresponding path program 30 times [2022-01-18 23:13:32,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:13:32,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217496593] [2022-01-18 23:13:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:13:32,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:13:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:13:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:13:33,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:13:33,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217496593] [2022-01-18 23:13:33,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217496593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:13:33,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:13:33,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 23:13:33,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574725703] [2022-01-18 23:13:33,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:13:33,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 23:13:33,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:13:33,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 23:13:33,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-18 23:13:33,408 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:13:33,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 853 places, 1334 transitions, 37054 flow. Second operand has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:33,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:13:33,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:13:33,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:13:45,457 INFO L129 PetriNetUnfolder]: 5520/17869 cut-off events. [2022-01-18 23:13:45,457 INFO L130 PetriNetUnfolder]: For 518721/518765 co-relation queries the response was YES. [2022-01-18 23:13:45,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127488 conditions, 17869 events. 5520/17869 cut-off events. For 518721/518765 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 210265 event pairs, 2196 based on Foata normal form. 20/17571 useless extension candidates. Maximal degree in co-relation 127221. Up to 10516 conditions per place. [2022-01-18 23:13:45,956 INFO L132 encePairwiseOnDemand]: 161/194 looper letters, 944 selfloop transitions, 352 changer transitions 63/1460 dead transitions. [2022-01-18 23:13:45,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 873 places, 1460 transitions, 41737 flow [2022-01-18 23:13:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 23:13:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-18 23:13:45,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 3062 transitions. [2022-01-18 23:13:45,958 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4782880349890659 [2022-01-18 23:13:45,958 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 3062 transitions. [2022-01-18 23:13:45,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 3062 transitions. [2022-01-18 23:13:45,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:13:45,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 3062 transitions. [2022-01-18 23:13:45,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 92.78787878787878) internal successors, (3062), 33 states have internal predecessors, (3062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:45,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:45,963 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 194.0) internal successors, (6596), 34 states have internal predecessors, (6596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:45,963 INFO L186 Difference]: Start difference. First operand has 853 places, 1334 transitions, 37054 flow. Second operand 33 states and 3062 transitions. [2022-01-18 23:13:45,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 873 places, 1460 transitions, 41737 flow [2022-01-18 23:13:51,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 846 places, 1460 transitions, 40953 flow, removed 23 selfloop flow, removed 27 redundant places. [2022-01-18 23:13:51,539 INFO L242 Difference]: Finished difference. Result has 856 places, 1328 transitions, 36953 flow [2022-01-18 23:13:51,540 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=36304, PETRI_DIFFERENCE_MINUEND_PLACES=814, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=351, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=36953, PETRI_PLACES=856, PETRI_TRANSITIONS=1328} [2022-01-18 23:13:51,540 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 676 predicate places. [2022-01-18 23:13:51,540 INFO L470 AbstractCegarLoop]: Abstraction has has 856 places, 1328 transitions, 36953 flow [2022-01-18 23:13:51,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 89.55172413793103) internal successors, (2597), 29 states have internal predecessors, (2597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:51,541 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:13:51,541 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] [2022-01-18 23:13:51,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 23:13:51,541 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 23:13:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:13:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash -556476401, now seen corresponding path program 31 times [2022-01-18 23:13:51,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:13:51,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636933386] [2022-01-18 23:13:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:13:51,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:13:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:13:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 23:13:52,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:13:52,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636933386] [2022-01-18 23:13:52,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636933386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:13:52,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:13:52,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 23:13:52,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925407792] [2022-01-18 23:13:52,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:13:52,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 23:13:52,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:13:52,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 23:13:52,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2022-01-18 23:13:52,403 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 194 [2022-01-18 23:13:52,404 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 856 places, 1328 transitions, 36953 flow. Second operand has 31 states, 31 states have (on average 89.38709677419355) internal successors, (2771), 31 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 23:13:52,404 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:13:52,404 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 194 [2022-01-18 23:13:52,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-01-18 23:13:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 23:13:55,522 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-01-18 23:13:55,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 23:13:55,522 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. [2022-01-18 23:13:55,523 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-01-18 23:13:55,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-01-18 23:13:55,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-01-18 23:13:55,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-01-18 23:13:55,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-01-18 23:13:55,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 8 remaining) [2022-01-18 23:13:55,524 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 8 remaining) [2022-01-18 23:13:55,527 INFO L732 BasicCegarLoop]: Path program histogram: [34, 31, 1, 1, 1, 1, 1] [2022-01-18 23:13:55,528 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 23:13:55,528 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 23:13:55,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:13:55 BasicIcfg [2022-01-18 23:13:55,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 23:13:55,530 INFO L158 Benchmark]: Toolchain (without parser) took 774353.91ms. Allocated memory was 360.7MB in the beginning and 13.8GB in the end (delta: 13.4GB). Free memory was 304.6MB in the beginning and 10.3GB in the end (delta: -10.0GB). Peak memory consumption was 3.4GB. Max. memory is 16.0GB. [2022-01-18 23:13:55,530 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 360.7MB. Free memory was 324.5MB in the beginning and 324.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:13:55,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.90ms. Allocated memory was 360.7MB in the beginning and 446.7MB in the end (delta: 86.0MB). Free memory was 304.3MB in the beginning and 377.4MB in the end (delta: -73.1MB). Peak memory consumption was 17.7MB. Max. memory is 16.0GB. [2022-01-18 23:13:55,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.04ms. Allocated memory is still 446.7MB. Free memory was 377.4MB in the beginning and 374.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 23:13:55,531 INFO L158 Benchmark]: Boogie Preprocessor took 31.60ms. Allocated memory is still 446.7MB. Free memory was 374.0MB in the beginning and 371.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:13:55,531 INFO L158 Benchmark]: RCFGBuilder took 420.97ms. Allocated memory is still 446.7MB. Free memory was 371.2MB in the beginning and 350.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-18 23:13:55,531 INFO L158 Benchmark]: TraceAbstraction took 773268.91ms. Allocated memory was 446.7MB in the beginning and 13.8GB in the end (delta: 13.3GB). Free memory was 350.9MB in the beginning and 10.3GB in the end (delta: -10.0GB). Peak memory consumption was 3.3GB. Max. memory is 16.0GB. [2022-01-18 23:13:55,533 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 360.7MB. Free memory was 324.5MB in the beginning and 324.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 577.90ms. Allocated memory was 360.7MB in the beginning and 446.7MB in the end (delta: 86.0MB). Free memory was 304.3MB in the beginning and 377.4MB in the end (delta: -73.1MB). Peak memory consumption was 17.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.04ms. Allocated memory is still 446.7MB. Free memory was 377.4MB in the beginning and 374.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.60ms. Allocated memory is still 446.7MB. Free memory was 374.0MB in the beginning and 371.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 420.97ms. Allocated memory is still 446.7MB. Free memory was 371.2MB in the beginning and 350.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 773268.91ms. Allocated memory was 446.7MB in the beginning and 13.8GB in the end (delta: 13.3GB). Free memory was 350.9MB in the beginning and 10.3GB in the end (delta: -10.0GB). Peak memory consumption was 3.3GB. 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: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - TimeoutResultAtElement [Line: 1726]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 45 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 202 locations, 8 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: 773.2s, OverallIterations: 70, TraceHistogramMax: 1, PathProgramHistogramMax: 34, EmptinessCheckTime: 0.0s, AutomataDifference: 735.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29094 SdHoareTripleChecker+Valid, 33.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29094 mSDsluCounter, 37800 SdHoareTripleChecker+Invalid, 27.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38478 mSDsCounter, 4855 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68544 IncrementalHoareTripleChecker+Invalid, 73399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4855 mSolverCounterUnsat, 4314 mSDtfsCounter, 68544 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3085 GetRequests, 305 SyntacticMatches, 52 SemanticMatches, 2727 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24907 ImplicationChecksByTransitivity, 80.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38415occurred in iteration=64, InterpolantAutomatonStates: 1709, 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, 34.7s InterpolantComputationTime, 8987 NumberOfCodeBlocks, 8987 NumberOfCodeBlocksAsserted, 70 NumberOfCheckSat, 8917 ConstructedInterpolants, 0 QuantifiedInterpolants, 147844 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 70 InterpolantComputations, 70 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown