/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 11:25:13,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:25:13,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:25:13,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:25:13,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:25:13,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:25:13,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:25:13,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:25:13,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:25:13,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:25:13,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:25:13,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:25:13,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:25:13,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:25:13,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:25:13,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:25:13,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:25:13,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:25:13,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:25:13,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:25:13,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:25:13,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:25:13,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:25:13,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:25:13,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 11:25:14,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:25:14,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:25:14,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:25:14,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-After.epf [2022-01-19 11:25:14,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:25:14,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:25:14,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:25:14,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:25:14,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:25:14,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:25:14,030 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:25:14,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:25:14,030 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:25:14,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:25:14,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:25:14,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:25:14,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:25:14,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:25:14,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:25:14,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:25:14,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:25:14,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:25:14,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:25:14,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:25:14,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:25:14,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:25:14,034 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:25:14,034 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:25:14,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:25:14,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:25:14,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:25:14,200 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:25:14,201 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:25:14,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-01-19 11:25:14,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ba3942d5/5136f087dc6b459f999733ba55798369/FLAG87ec58ddf [2022-01-19 11:25:14,721 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:25:14,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-01-19 11:25:14,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ba3942d5/5136f087dc6b459f999733ba55798369/FLAG87ec58ddf [2022-01-19 11:25:15,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ba3942d5/5136f087dc6b459f999733ba55798369 [2022-01-19 11:25:15,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:25:15,039 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:25:15,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:25:15,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:25:15,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:25:15,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0c7996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15, skipping insertion in model container [2022-01-19 11:25:15,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:25:15,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:25:15,528 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-2_1-container_of.i[76077,76090] [2022-01-19 11:25:15,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:25:15,563 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:25:15,598 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-2_1-container_of.i[76077,76090] [2022-01-19 11:25:15,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:25:15,673 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:25:15,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15 WrapperNode [2022-01-19 11:25:15,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:25:15,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:25:15,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:25:15,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:25:15,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,712 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-01-19 11:25:15,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:25:15,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:25:15,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:25:15,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:25:15,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:25:15,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:25:15,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:25:15,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:25:15,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (1/1) ... [2022-01-19 11:25:15,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:25:15,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:25:15,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 11:25:15,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 11:25:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:25:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 11:25:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 11:25:15,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:25:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-19 11:25:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:25:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:25:15,788 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-01-19 11:25:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-01-19 11:25:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:25:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:25:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:25:15,791 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 11:25:15,986 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:25:15,987 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:25:16,234 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:25:16,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:25:16,240 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 11:25:16,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:25:16 BoogieIcfgContainer [2022-01-19 11:25:16,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:25:16,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:25:16,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:25:16,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:25:16,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:25:15" (1/3) ... [2022-01-19 11:25:16,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f73d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:25:16, skipping insertion in model container [2022-01-19 11:25:16,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:25:15" (2/3) ... [2022-01-19 11:25:16,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f73d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:25:16, skipping insertion in model container [2022-01-19 11:25:16,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:25:16" (3/3) ... [2022-01-19 11:25:16,246 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-01-19 11:25:16,249 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:25:16,249 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-19 11:25:16,249 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:25:16,273 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,273 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,273 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,273 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,276 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,277 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,278 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,278 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,278 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,278 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,278 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,278 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,278 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,279 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,280 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,280 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,280 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,280 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,280 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,280 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,280 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,280 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,281 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,284 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,286 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,287 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,287 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,287 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,287 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,287 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,287 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,287 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,287 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,288 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,288 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,288 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,288 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,288 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,290 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,290 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,290 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,291 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,291 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,291 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,291 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,292 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,292 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,292 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,292 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,292 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,293 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,293 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,293 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,302 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:25:16,304 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 11:25:16,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:25:16,335 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 11:25:16,336 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-01-19 11:25:16,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 195 transitions, 406 flow [2022-01-19 11:25:16,386 INFO L129 PetriNetUnfolder]: 10/240 cut-off events. [2022-01-19 11:25:16,386 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 11:25:16,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 10/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-01-19 11:25:16,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 195 transitions, 406 flow [2022-01-19 11:25:16,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 181 transitions, 374 flow [2022-01-19 11:25:16,397 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2022-01-19 11:25:16,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:25:16,398 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:16,398 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] [2022-01-19 11:25:16,398 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)] === [2022-01-19 11:25:16,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1888391755, now seen corresponding path program 1 times [2022-01-19 11:25:16,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:16,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491166753] [2022-01-19 11:25:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:16,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:16,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:16,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491166753] [2022-01-19 11:25:16,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491166753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:16,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:16,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:25:16,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111960773] [2022-01-19 11:25:16,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:16,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:25:16,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:16,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:25:16,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:25:16,671 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-01-19 11:25:16,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 181 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:16,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:16,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-01-19 11:25:16,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:16,987 INFO L129 PetriNetUnfolder]: 361/1046 cut-off events. [2022-01-19 11:25:16,987 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-01-19 11:25:16,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 1046 events. 361/1046 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6124 event pairs, 216 based on Foata normal form. 20/1012 useless extension candidates. Maximal degree in co-relation 1489. Up to 397 conditions per place. [2022-01-19 11:25:16,997 INFO L132 encePairwiseOnDemand]: 173/195 looper letters, 53 selfloop transitions, 17 changer transitions 1/177 dead transitions. [2022-01-19 11:25:16,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 177 transitions, 508 flow [2022-01-19 11:25:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:25:17,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:25:17,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1138 transitions. [2022-01-19 11:25:17,016 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6484330484330484 [2022-01-19 11:25:17,016 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1138 transitions. [2022-01-19 11:25:17,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1138 transitions. [2022-01-19 11:25:17,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:17,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1138 transitions. [2022-01-19 11:25:17,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 126.44444444444444) internal successors, (1138), 9 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 195.0) internal successors, (1950), 10 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,034 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 195.0) internal successors, (1950), 10 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,035 INFO L186 Difference]: Start difference. First operand has 181 places, 181 transitions, 374 flow. Second operand 9 states and 1138 transitions. [2022-01-19 11:25:17,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 177 transitions, 508 flow [2022-01-19 11:25:17,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 177 transitions, 500 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 11:25:17,046 INFO L242 Difference]: Finished difference. Result has 179 places, 170 transitions, 385 flow [2022-01-19 11:25:17,051 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=385, PETRI_PLACES=179, PETRI_TRANSITIONS=170} [2022-01-19 11:25:17,053 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, -2 predicate places. [2022-01-19 11:25:17,054 INFO L470 AbstractCegarLoop]: Abstraction has has 179 places, 170 transitions, 385 flow [2022-01-19 11:25:17,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,054 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:17,055 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] [2022-01-19 11:25:17,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:25:17,055 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)] === [2022-01-19 11:25:17,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:17,056 INFO L85 PathProgramCache]: Analyzing trace with hash -57843741, now seen corresponding path program 1 times [2022-01-19 11:25:17,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:17,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194229833] [2022-01-19 11:25:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:17,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:17,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:17,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194229833] [2022-01-19 11:25:17,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194229833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:17,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:17,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:25:17,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98041112] [2022-01-19 11:25:17,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:17,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:25:17,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:17,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:25:17,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:25:17,229 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-01-19 11:25:17,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 170 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:17,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-01-19 11:25:17,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:17,425 INFO L129 PetriNetUnfolder]: 361/1016 cut-off events. [2022-01-19 11:25:17,425 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-01-19 11:25:17,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1784 conditions, 1016 events. 361/1016 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5789 event pairs, 120 based on Foata normal form. 1/983 useless extension candidates. Maximal degree in co-relation 882. Up to 262 conditions per place. [2022-01-19 11:25:17,431 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 61 selfloop transitions, 18 changer transitions 1/185 dead transitions. [2022-01-19 11:25:17,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 185 transitions, 577 flow [2022-01-19 11:25:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 11:25:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 11:25:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1261 transitions. [2022-01-19 11:25:17,434 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2022-01-19 11:25:17,434 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1261 transitions. [2022-01-19 11:25:17,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1261 transitions. [2022-01-19 11:25:17,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:17,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1261 transitions. [2022-01-19 11:25:17,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 195.0) internal successors, (2145), 11 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,440 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 195.0) internal successors, (2145), 11 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,440 INFO L186 Difference]: Start difference. First operand has 179 places, 170 transitions, 385 flow. Second operand 10 states and 1261 transitions. [2022-01-19 11:25:17,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 185 transitions, 577 flow [2022-01-19 11:25:17,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 185 transitions, 548 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-01-19 11:25:17,475 INFO L242 Difference]: Finished difference. Result has 180 places, 169 transitions, 396 flow [2022-01-19 11:25:17,476 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=396, PETRI_PLACES=180, PETRI_TRANSITIONS=169} [2022-01-19 11:25:17,476 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, -1 predicate places. [2022-01-19 11:25:17,476 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 169 transitions, 396 flow [2022-01-19 11:25:17,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,477 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:17,477 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] [2022-01-19 11:25:17,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 11:25:17,478 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)] === [2022-01-19 11:25:17,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:17,479 INFO L85 PathProgramCache]: Analyzing trace with hash 5829728, now seen corresponding path program 1 times [2022-01-19 11:25:17,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:17,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494857726] [2022-01-19 11:25:17,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:17,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:17,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:17,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494857726] [2022-01-19 11:25:17,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494857726] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:17,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:17,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:25:17,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155745805] [2022-01-19 11:25:17,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:17,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:25:17,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:17,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:25:17,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:25:17,553 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-01-19 11:25:17,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 169 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:17,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-01-19 11:25:17,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:17,866 INFO L129 PetriNetUnfolder]: 832/2098 cut-off events. [2022-01-19 11:25:17,866 INFO L130 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-01-19 11:25:17,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3841 conditions, 2098 events. 832/2098 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 14158 event pairs, 169 based on Foata normal form. 32/2102 useless extension candidates. Maximal degree in co-relation 1029. Up to 499 conditions per place. [2022-01-19 11:25:17,876 INFO L132 encePairwiseOnDemand]: 174/195 looper letters, 100 selfloop transitions, 49 changer transitions 0/254 dead transitions. [2022-01-19 11:25:17,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 254 transitions, 880 flow [2022-01-19 11:25:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 11:25:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 11:25:17,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1657 transitions. [2022-01-19 11:25:17,879 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6536489151873768 [2022-01-19 11:25:17,879 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1657 transitions. [2022-01-19 11:25:17,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1657 transitions. [2022-01-19 11:25:17,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:17,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1657 transitions. [2022-01-19 11:25:17,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 127.46153846153847) internal successors, (1657), 13 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 195.0) internal successors, (2730), 14 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,885 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 195.0) internal successors, (2730), 14 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,885 INFO L186 Difference]: Start difference. First operand has 180 places, 169 transitions, 396 flow. Second operand 13 states and 1657 transitions. [2022-01-19 11:25:17,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 254 transitions, 880 flow [2022-01-19 11:25:17,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 254 transitions, 834 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-19 11:25:17,890 INFO L242 Difference]: Finished difference. Result has 192 places, 206 transitions, 666 flow [2022-01-19 11:25:17,890 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=666, PETRI_PLACES=192, PETRI_TRANSITIONS=206} [2022-01-19 11:25:17,891 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-01-19 11:25:17,891 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 206 transitions, 666 flow [2022-01-19 11:25:17,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,891 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:17,891 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] [2022-01-19 11:25:17,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 11:25:17,892 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)] === [2022-01-19 11:25:17,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:17,892 INFO L85 PathProgramCache]: Analyzing trace with hash -2139572029, now seen corresponding path program 1 times [2022-01-19 11:25:17,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:17,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407958576] [2022-01-19 11:25:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:17,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:17,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:17,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407958576] [2022-01-19 11:25:17,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407958576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:17,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:17,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:25:17,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129522091] [2022-01-19 11:25:17,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:17,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:25:17,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:17,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:25:17,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:25:17,962 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-01-19 11:25:17,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 206 transitions, 666 flow. Second operand has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:17,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:17,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-01-19 11:25:17,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:18,336 INFO L129 PetriNetUnfolder]: 1084/2667 cut-off events. [2022-01-19 11:25:18,336 INFO L130 PetriNetUnfolder]: For 10874/10936 co-relation queries the response was YES. [2022-01-19 11:25:18,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9161 conditions, 2667 events. 1084/2667 cut-off events. For 10874/10936 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 19229 event pairs, 218 based on Foata normal form. 47/2686 useless extension candidates. Maximal degree in co-relation 7852. Up to 732 conditions per place. [2022-01-19 11:25:18,351 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 74 selfloop transitions, 48 changer transitions 69/295 dead transitions. [2022-01-19 11:25:18,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 295 transitions, 1750 flow [2022-01-19 11:25:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 11:25:18,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 11:25:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1406 transitions. [2022-01-19 11:25:18,354 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6554778554778555 [2022-01-19 11:25:18,354 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1406 transitions. [2022-01-19 11:25:18,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1406 transitions. [2022-01-19 11:25:18,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:18,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1406 transitions. [2022-01-19 11:25:18,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 127.81818181818181) internal successors, (1406), 11 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 195.0) internal successors, (2340), 12 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,359 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 195.0) internal successors, (2340), 12 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,359 INFO L186 Difference]: Start difference. First operand has 192 places, 206 transitions, 666 flow. Second operand 11 states and 1406 transitions. [2022-01-19 11:25:18,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 295 transitions, 1750 flow [2022-01-19 11:25:18,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 295 transitions, 1750 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 11:25:18,371 INFO L242 Difference]: Finished difference. Result has 210 places, 212 transitions, 979 flow [2022-01-19 11:25:18,371 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=979, PETRI_PLACES=210, PETRI_TRANSITIONS=212} [2022-01-19 11:25:18,373 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-01-19 11:25:18,373 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 212 transitions, 979 flow [2022-01-19 11:25:18,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,373 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:18,373 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] [2022-01-19 11:25:18,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 11:25:18,373 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)] === [2022-01-19 11:25:18,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:18,374 INFO L85 PathProgramCache]: Analyzing trace with hash 881004710, now seen corresponding path program 1 times [2022-01-19 11:25:18,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:18,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022525413] [2022-01-19 11:25:18,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:18,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:18,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:18,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022525413] [2022-01-19 11:25:18,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022525413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:18,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:18,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 11:25:18,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780725534] [2022-01-19 11:25:18,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:18,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 11:25:18,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:18,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 11:25:18,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 11:25:18,470 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 195 [2022-01-19 11:25:18,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 212 transitions, 979 flow. Second operand has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:18,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 195 [2022-01-19 11:25:18,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:18,508 INFO L129 PetriNetUnfolder]: 4/168 cut-off events. [2022-01-19 11:25:18,508 INFO L130 PetriNetUnfolder]: For 459/531 co-relation queries the response was YES. [2022-01-19 11:25:18,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 168 events. 4/168 cut-off events. For 459/531 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 194 event pairs, 4 based on Foata normal form. 8/174 useless extension candidates. Maximal degree in co-relation 337. Up to 13 conditions per place. [2022-01-19 11:25:18,509 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 9 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2022-01-19 11:25:18,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 140 transitions, 438 flow [2022-01-19 11:25:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 11:25:18,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 11:25:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1022 transitions. [2022-01-19 11:25:18,511 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8735042735042735 [2022-01-19 11:25:18,511 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1022 transitions. [2022-01-19 11:25:18,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1022 transitions. [2022-01-19 11:25:18,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:18,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1022 transitions. [2022-01-19 11:25:18,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,515 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,515 INFO L186 Difference]: Start difference. First operand has 210 places, 212 transitions, 979 flow. Second operand 6 states and 1022 transitions. [2022-01-19 11:25:18,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 140 transitions, 438 flow [2022-01-19 11:25:18,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 140 transitions, 318 flow, removed 40 selfloop flow, removed 19 redundant places. [2022-01-19 11:25:18,517 INFO L242 Difference]: Finished difference. Result has 153 places, 140 transitions, 300 flow [2022-01-19 11:25:18,517 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=300, PETRI_PLACES=153, PETRI_TRANSITIONS=140} [2022-01-19 11:25:18,520 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, -28 predicate places. [2022-01-19 11:25:18,520 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 140 transitions, 300 flow [2022-01-19 11:25:18,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:18,521 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:18,521 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] [2022-01-19 11:25:18,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 11:25:18,521 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)] === [2022-01-19 11:25:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:18,522 INFO L85 PathProgramCache]: Analyzing trace with hash -971686872, now seen corresponding path program 1 times [2022-01-19 11:25:18,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:18,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263562680] [2022-01-19 11:25:18,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:18,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:19,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:19,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:19,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263562680] [2022-01-19 11:25:19,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263562680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:19,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:19,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-19 11:25:19,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449377183] [2022-01-19 11:25:19,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:19,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 11:25:19,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 11:25:19,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-19 11:25:19,303 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-01-19 11:25:19,305 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 140 transitions, 300 flow. Second operand has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:19,305 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:19,305 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-01-19 11:25:19,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:20,935 INFO L129 PetriNetUnfolder]: 698/1674 cut-off events. [2022-01-19 11:25:20,936 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-01-19 11:25:20,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3160 conditions, 1674 events. 698/1674 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10908 event pairs, 18 based on Foata normal form. 12/1618 useless extension candidates. Maximal degree in co-relation 3152. Up to 340 conditions per place. [2022-01-19 11:25:20,943 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 154 selfloop transitions, 29 changer transitions 0/257 dead transitions. [2022-01-19 11:25:20,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 257 transitions, 949 flow [2022-01-19 11:25:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 11:25:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 11:25:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2461 transitions. [2022-01-19 11:25:20,947 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5487179487179488 [2022-01-19 11:25:20,948 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2461 transitions. [2022-01-19 11:25:20,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2461 transitions. [2022-01-19 11:25:20,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:20,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2461 transitions. [2022-01-19 11:25:20,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 107.0) internal successors, (2461), 23 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:20,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:20,957 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:20,957 INFO L186 Difference]: Start difference. First operand has 153 places, 140 transitions, 300 flow. Second operand 23 states and 2461 transitions. [2022-01-19 11:25:20,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 257 transitions, 949 flow [2022-01-19 11:25:20,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 257 transitions, 942 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 11:25:20,961 INFO L242 Difference]: Finished difference. Result has 176 places, 150 transitions, 400 flow [2022-01-19 11:25:20,961 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=400, PETRI_PLACES=176, PETRI_TRANSITIONS=150} [2022-01-19 11:25:20,962 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, -5 predicate places. [2022-01-19 11:25:20,962 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 150 transitions, 400 flow [2022-01-19 11:25:20,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:20,963 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:20,964 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] [2022-01-19 11:25:20,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 11:25:20,964 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)] === [2022-01-19 11:25:20,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:20,965 INFO L85 PathProgramCache]: Analyzing trace with hash -118839364, now seen corresponding path program 2 times [2022-01-19 11:25:20,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:20,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138744714] [2022-01-19 11:25:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:20,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:21,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:21,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138744714] [2022-01-19 11:25:21,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138744714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:21,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:21,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-19 11:25:21,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780268311] [2022-01-19 11:25:21,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:21,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-19 11:25:21,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:21,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-19 11:25:21,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2022-01-19 11:25:21,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-01-19 11:25:21,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 150 transitions, 400 flow. Second operand has 27 states, 27 states have (on average 91.51851851851852) internal successors, (2471), 27 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:21,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:21,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-01-19 11:25:21,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:25,436 INFO L129 PetriNetUnfolder]: 2174/4614 cut-off events. [2022-01-19 11:25:25,436 INFO L130 PetriNetUnfolder]: For 1757/1762 co-relation queries the response was YES. [2022-01-19 11:25:25,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10626 conditions, 4614 events. 2174/4614 cut-off events. For 1757/1762 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 33854 event pairs, 484 based on Foata normal form. 2/4476 useless extension candidates. Maximal degree in co-relation 10613. Up to 1127 conditions per place. [2022-01-19 11:25:25,464 INFO L132 encePairwiseOnDemand]: 162/195 looper letters, 246 selfloop transitions, 52 changer transitions 0/363 dead transitions. [2022-01-19 11:25:25,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 363 transitions, 1655 flow [2022-01-19 11:25:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-19 11:25:25,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-01-19 11:25:25,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 3130 transitions. [2022-01-19 11:25:25,471 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5016025641025641 [2022-01-19 11:25:25,471 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 3130 transitions. [2022-01-19 11:25:25,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 3130 transitions. [2022-01-19 11:25:25,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:25,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 3130 transitions. [2022-01-19 11:25:25,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 97.8125) internal successors, (3130), 32 states have internal predecessors, (3130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:25,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 195.0) internal successors, (6435), 33 states have internal predecessors, (6435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:25,484 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 195.0) internal successors, (6435), 33 states have internal predecessors, (6435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:25,484 INFO L186 Difference]: Start difference. First operand has 176 places, 150 transitions, 400 flow. Second operand 32 states and 3130 transitions. [2022-01-19 11:25:25,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 363 transitions, 1655 flow [2022-01-19 11:25:25,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 363 transitions, 1551 flow, removed 0 selfloop flow, removed 16 redundant places. [2022-01-19 11:25:25,491 INFO L242 Difference]: Finished difference. Result has 203 places, 183 transitions, 650 flow [2022-01-19 11:25:25,492 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=650, PETRI_PLACES=203, PETRI_TRANSITIONS=183} [2022-01-19 11:25:25,492 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 22 predicate places. [2022-01-19 11:25:25,492 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 183 transitions, 650 flow [2022-01-19 11:25:25,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 91.51851851851852) internal successors, (2471), 27 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:25,493 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:25,493 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] [2022-01-19 11:25:25,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 11:25:25,494 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)] === [2022-01-19 11:25:25,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:25,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1959895502, now seen corresponding path program 3 times [2022-01-19 11:25:25,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:25,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258525427] [2022-01-19 11:25:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:25,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:25,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:25,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258525427] [2022-01-19 11:25:25,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258525427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:25,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:25,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 11:25:25,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399115836] [2022-01-19 11:25:25,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:25,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 11:25:25,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:25,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 11:25:25,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-01-19 11:25:25,943 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-01-19 11:25:25,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 183 transitions, 650 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:25,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:25,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-01-19 11:25:25,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:27,229 INFO L129 PetriNetUnfolder]: 1254/3467 cut-off events. [2022-01-19 11:25:27,229 INFO L130 PetriNetUnfolder]: For 4552/4647 co-relation queries the response was YES. [2022-01-19 11:25:27,240 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9157 conditions, 3467 events. 1254/3467 cut-off events. For 4552/4647 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27694 event pairs, 420 based on Foata normal form. 5/3345 useless extension candidates. Maximal degree in co-relation 9133. Up to 1042 conditions per place. [2022-01-19 11:25:27,254 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 158 selfloop transitions, 47 changer transitions 0/287 dead transitions. [2022-01-19 11:25:27,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 287 transitions, 1520 flow [2022-01-19 11:25:27,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 11:25:27,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 11:25:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2276 transitions. [2022-01-19 11:25:27,262 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5305361305361306 [2022-01-19 11:25:27,263 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2276 transitions. [2022-01-19 11:25:27,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2276 transitions. [2022-01-19 11:25:27,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:27,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2276 transitions. [2022-01-19 11:25:27,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 103.45454545454545) internal successors, (2276), 22 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:27,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:27,281 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:27,281 INFO L186 Difference]: Start difference. First operand has 203 places, 183 transitions, 650 flow. Second operand 22 states and 2276 transitions. [2022-01-19 11:25:27,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 287 transitions, 1520 flow [2022-01-19 11:25:27,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 287 transitions, 1483 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-01-19 11:25:27,293 INFO L242 Difference]: Finished difference. Result has 225 places, 206 transitions, 932 flow [2022-01-19 11:25:27,293 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=932, PETRI_PLACES=225, PETRI_TRANSITIONS=206} [2022-01-19 11:25:27,294 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 44 predicate places. [2022-01-19 11:25:27,294 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 206 transitions, 932 flow [2022-01-19 11:25:27,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:27,294 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:27,294 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] [2022-01-19 11:25:27,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 11:25:27,295 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)] === [2022-01-19 11:25:27,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:27,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1971357370, now seen corresponding path program 4 times [2022-01-19 11:25:27,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:27,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128622206] [2022-01-19 11:25:27,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:27,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:28,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:28,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128622206] [2022-01-19 11:25:28,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128622206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:28,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:28,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-19 11:25:28,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093837556] [2022-01-19 11:25:28,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:28,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-19 11:25:28,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:28,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-19 11:25:28,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2022-01-19 11:25:28,035 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 195 [2022-01-19 11:25:28,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 206 transitions, 932 flow. Second operand has 30 states, 30 states have (on average 90.3) internal successors, (2709), 30 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:28,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:28,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 195 [2022-01-19 11:25:28,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:35,346 INFO L129 PetriNetUnfolder]: 3341/7436 cut-off events. [2022-01-19 11:25:35,346 INFO L130 PetriNetUnfolder]: For 13625/13662 co-relation queries the response was YES. [2022-01-19 11:25:35,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21845 conditions, 7436 events. 3341/7436 cut-off events. For 13625/13662 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 59997 event pairs, 283 based on Foata normal form. 19/7372 useless extension candidates. Maximal degree in co-relation 21810. Up to 1448 conditions per place. [2022-01-19 11:25:35,385 INFO L132 encePairwiseOnDemand]: 157/195 looper letters, 344 selfloop transitions, 167 changer transitions 0/575 dead transitions. [2022-01-19 11:25:35,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 575 transitions, 3998 flow [2022-01-19 11:25:35,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-19 11:25:35,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2022-01-19 11:25:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 5825 transitions. [2022-01-19 11:25:35,391 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48180314309346567 [2022-01-19 11:25:35,391 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 5825 transitions. [2022-01-19 11:25:35,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 5825 transitions. [2022-01-19 11:25:35,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:35,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 5825 transitions. [2022-01-19 11:25:35,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 93.95161290322581) internal successors, (5825), 62 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:35,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 195.0) internal successors, (12285), 63 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:35,409 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 195.0) internal successors, (12285), 63 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:35,409 INFO L186 Difference]: Start difference. First operand has 225 places, 206 transitions, 932 flow. Second operand 62 states and 5825 transitions. [2022-01-19 11:25:35,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 575 transitions, 3998 flow [2022-01-19 11:25:35,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 575 transitions, 3922 flow, removed 14 selfloop flow, removed 7 redundant places. [2022-01-19 11:25:35,447 INFO L242 Difference]: Finished difference. Result has 291 places, 319 transitions, 2178 flow [2022-01-19 11:25:35,447 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=2178, PETRI_PLACES=291, PETRI_TRANSITIONS=319} [2022-01-19 11:25:35,447 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 110 predicate places. [2022-01-19 11:25:35,448 INFO L470 AbstractCegarLoop]: Abstraction has has 291 places, 319 transitions, 2178 flow [2022-01-19 11:25:35,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 90.3) internal successors, (2709), 30 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:35,448 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:35,448 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] [2022-01-19 11:25:35,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 11:25:35,448 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)] === [2022-01-19 11:25:35,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:35,449 INFO L85 PathProgramCache]: Analyzing trace with hash 266412222, now seen corresponding path program 5 times [2022-01-19 11:25:35,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:35,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245505770] [2022-01-19 11:25:35,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:35,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:35,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:35,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:35,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245505770] [2022-01-19 11:25:35,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245505770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:35,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:35,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 11:25:35,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335032553] [2022-01-19 11:25:35,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:35,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 11:25:35,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:35,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 11:25:35,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-19 11:25:35,811 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-01-19 11:25:35,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 319 transitions, 2178 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:35,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:35,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-01-19 11:25:35,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:37,810 INFO L129 PetriNetUnfolder]: 2894/8110 cut-off events. [2022-01-19 11:25:37,810 INFO L130 PetriNetUnfolder]: For 18095/18226 co-relation queries the response was YES. [2022-01-19 11:25:37,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24201 conditions, 8110 events. 2894/8110 cut-off events. For 18095/18226 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 78360 event pairs, 242 based on Foata normal form. 23/7959 useless extension candidates. Maximal degree in co-relation 24154. Up to 1355 conditions per place. [2022-01-19 11:25:37,865 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 253 selfloop transitions, 132 changer transitions 0/518 dead transitions. [2022-01-19 11:25:37,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 518 transitions, 4443 flow [2022-01-19 11:25:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 11:25:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 11:25:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2292 transitions. [2022-01-19 11:25:37,868 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5342657342657343 [2022-01-19 11:25:37,868 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2292 transitions. [2022-01-19 11:25:37,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2292 transitions. [2022-01-19 11:25:37,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:37,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2292 transitions. [2022-01-19 11:25:37,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 104.18181818181819) internal successors, (2292), 22 states have internal predecessors, (2292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:37,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:37,875 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:37,875 INFO L186 Difference]: Start difference. First operand has 291 places, 319 transitions, 2178 flow. Second operand 22 states and 2292 transitions. [2022-01-19 11:25:37,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 518 transitions, 4443 flow [2022-01-19 11:25:37,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 518 transitions, 4179 flow, removed 62 selfloop flow, removed 18 redundant places. [2022-01-19 11:25:37,933 INFO L242 Difference]: Finished difference. Result has 303 places, 374 transitions, 2945 flow [2022-01-19 11:25:37,934 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=1924, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2945, PETRI_PLACES=303, PETRI_TRANSITIONS=374} [2022-01-19 11:25:37,935 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 122 predicate places. [2022-01-19 11:25:37,935 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 374 transitions, 2945 flow [2022-01-19 11:25:37,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:37,935 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:37,936 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] [2022-01-19 11:25:37,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 11:25:37,936 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)] === [2022-01-19 11:25:37,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:37,936 INFO L85 PathProgramCache]: Analyzing trace with hash 418435402, now seen corresponding path program 6 times [2022-01-19 11:25:37,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:37,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855383042] [2022-01-19 11:25:37,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:37,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:38,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:38,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:38,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855383042] [2022-01-19 11:25:38,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855383042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:38,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:38,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 11:25:38,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750865965] [2022-01-19 11:25:38,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:38,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 11:25:38,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:38,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 11:25:38,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-01-19 11:25:38,325 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-01-19 11:25:38,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 374 transitions, 2945 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:38,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:38,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-01-19 11:25:38,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:40,667 INFO L129 PetriNetUnfolder]: 3912/11213 cut-off events. [2022-01-19 11:25:40,667 INFO L130 PetriNetUnfolder]: For 32138/32200 co-relation queries the response was YES. [2022-01-19 11:25:40,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35224 conditions, 11213 events. 3912/11213 cut-off events. For 32138/32200 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 115907 event pairs, 1571 based on Foata normal form. 16/10953 useless extension candidates. Maximal degree in co-relation 35167. Up to 4387 conditions per place. [2022-01-19 11:25:40,734 INFO L132 encePairwiseOnDemand]: 170/195 looper letters, 271 selfloop transitions, 147 changer transitions 0/551 dead transitions. [2022-01-19 11:25:40,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 551 transitions, 5082 flow [2022-01-19 11:25:40,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 11:25:40,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 11:25:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-01-19 11:25:40,737 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5291819291819292 [2022-01-19 11:25:40,737 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-01-19 11:25:40,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-01-19 11:25:40,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:40,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-01-19 11:25:40,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 103.19047619047619) internal successors, (2167), 21 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:40,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 195.0) internal successors, (4290), 22 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:40,745 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 195.0) internal successors, (4290), 22 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:40,745 INFO L186 Difference]: Start difference. First operand has 303 places, 374 transitions, 2945 flow. Second operand 21 states and 2167 transitions. [2022-01-19 11:25:40,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 551 transitions, 5082 flow [2022-01-19 11:25:40,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 551 transitions, 4904 flow, removed 22 selfloop flow, removed 9 redundant places. [2022-01-19 11:25:40,868 INFO L242 Difference]: Finished difference. Result has 326 places, 431 transitions, 3848 flow [2022-01-19 11:25:40,868 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=2832, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3848, PETRI_PLACES=326, PETRI_TRANSITIONS=431} [2022-01-19 11:25:40,869 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 145 predicate places. [2022-01-19 11:25:40,869 INFO L470 AbstractCegarLoop]: Abstraction has has 326 places, 431 transitions, 3848 flow [2022-01-19 11:25:40,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:40,870 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:40,870 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] [2022-01-19 11:25:40,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 11:25:40,870 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)] === [2022-01-19 11:25:40,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:40,870 INFO L85 PathProgramCache]: Analyzing trace with hash 616137398, now seen corresponding path program 7 times [2022-01-19 11:25:40,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:40,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101985914] [2022-01-19 11:25:40,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:40,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:41,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:41,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101985914] [2022-01-19 11:25:41,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101985914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:41,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:41,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 11:25:41,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355345605] [2022-01-19 11:25:41,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:41,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 11:25:41,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:41,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 11:25:41,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-01-19 11:25:41,353 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-01-19 11:25:41,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 431 transitions, 3848 flow. Second operand has 19 states, 19 states have (on average 134.31578947368422) internal successors, (2552), 19 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:41,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:41,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-01-19 11:25:41,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:44,340 INFO L129 PetriNetUnfolder]: 3485/11010 cut-off events. [2022-01-19 11:25:44,340 INFO L130 PetriNetUnfolder]: For 49551/49726 co-relation queries the response was YES. [2022-01-19 11:25:44,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38586 conditions, 11010 events. 3485/11010 cut-off events. For 49551/49726 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 120570 event pairs, 1641 based on Foata normal form. 53/10740 useless extension candidates. Maximal degree in co-relation 38516. Up to 2670 conditions per place. [2022-01-19 11:25:44,416 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 268 selfloop transitions, 100 changer transitions 0/581 dead transitions. [2022-01-19 11:25:44,416 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 581 transitions, 6037 flow [2022-01-19 11:25:44,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 11:25:44,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 11:25:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2804 transitions. [2022-01-19 11:25:44,419 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.718974358974359 [2022-01-19 11:25:44,419 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2804 transitions. [2022-01-19 11:25:44,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2804 transitions. [2022-01-19 11:25:44,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:44,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2804 transitions. [2022-01-19 11:25:44,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.2) internal successors, (2804), 20 states have internal predecessors, (2804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:44,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 195.0) internal successors, (4095), 21 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:44,425 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 195.0) internal successors, (4095), 21 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:44,425 INFO L186 Difference]: Start difference. First operand has 326 places, 431 transitions, 3848 flow. Second operand 20 states and 2804 transitions. [2022-01-19 11:25:44,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 581 transitions, 6037 flow [2022-01-19 11:25:44,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 581 transitions, 5945 flow, removed 36 selfloop flow, removed 6 redundant places. [2022-01-19 11:25:44,589 INFO L242 Difference]: Finished difference. Result has 345 places, 452 transitions, 4185 flow [2022-01-19 11:25:44,590 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=3770, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4185, PETRI_PLACES=345, PETRI_TRANSITIONS=452} [2022-01-19 11:25:44,591 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 164 predicate places. [2022-01-19 11:25:44,591 INFO L470 AbstractCegarLoop]: Abstraction has has 345 places, 452 transitions, 4185 flow [2022-01-19 11:25:44,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 134.31578947368422) internal successors, (2552), 19 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:44,592 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:44,592 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] [2022-01-19 11:25:44,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 11:25:44,593 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)] === [2022-01-19 11:25:44,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:44,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1357591996, now seen corresponding path program 8 times [2022-01-19 11:25:44,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:44,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417724949] [2022-01-19 11:25:44,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:44,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:45,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:45,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417724949] [2022-01-19 11:25:45,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417724949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:45,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:45,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 11:25:45,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185475769] [2022-01-19 11:25:45,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:45,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 11:25:45,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:45,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 11:25:45,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-19 11:25:45,053 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-01-19 11:25:45,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 452 transitions, 4185 flow. Second operand has 20 states, 20 states have (on average 99.05) internal successors, (1981), 20 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:45,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:45,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-01-19 11:25:45,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:49,639 INFO L129 PetriNetUnfolder]: 7462/20353 cut-off events. [2022-01-19 11:25:49,639 INFO L130 PetriNetUnfolder]: For 79371/79549 co-relation queries the response was YES. [2022-01-19 11:25:49,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70829 conditions, 20353 events. 7462/20353 cut-off events. For 79371/79549 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 229254 event pairs, 2497 based on Foata normal form. 24/19935 useless extension candidates. Maximal degree in co-relation 70753. Up to 6040 conditions per place. [2022-01-19 11:25:49,861 INFO L132 encePairwiseOnDemand]: 168/195 looper letters, 338 selfloop transitions, 201 changer transitions 0/680 dead transitions. [2022-01-19 11:25:49,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 680 transitions, 7313 flow [2022-01-19 11:25:49,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-19 11:25:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-01-19 11:25:49,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2764 transitions. [2022-01-19 11:25:49,870 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5249762583095916 [2022-01-19 11:25:49,870 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2764 transitions. [2022-01-19 11:25:49,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2764 transitions. [2022-01-19 11:25:49,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:49,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2764 transitions. [2022-01-19 11:25:49,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 102.37037037037037) internal successors, (2764), 27 states have internal predecessors, (2764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:49,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 195.0) internal successors, (5460), 28 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:49,883 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 195.0) internal successors, (5460), 28 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:49,883 INFO L186 Difference]: Start difference. First operand has 345 places, 452 transitions, 4185 flow. Second operand 27 states and 2764 transitions. [2022-01-19 11:25:49,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 680 transitions, 7313 flow [2022-01-19 11:25:50,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 680 transitions, 7160 flow, removed 17 selfloop flow, removed 10 redundant places. [2022-01-19 11:25:50,308 INFO L242 Difference]: Finished difference. Result has 372 places, 529 transitions, 5650 flow [2022-01-19 11:25:50,308 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=4042, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5650, PETRI_PLACES=372, PETRI_TRANSITIONS=529} [2022-01-19 11:25:50,312 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 191 predicate places. [2022-01-19 11:25:50,313 INFO L470 AbstractCegarLoop]: Abstraction has has 372 places, 529 transitions, 5650 flow [2022-01-19 11:25:50,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 99.05) internal successors, (1981), 20 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:50,313 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:25:50,313 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] [2022-01-19 11:25:50,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 11:25:50,313 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)] === [2022-01-19 11:25:50,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:25:50,314 INFO L85 PathProgramCache]: Analyzing trace with hash -79023016, now seen corresponding path program 9 times [2022-01-19 11:25:50,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:25:50,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519251333] [2022-01-19 11:25:50,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:25:50,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:25:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:25:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:25:51,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:25:51,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519251333] [2022-01-19 11:25:51,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519251333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:25:51,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:25:51,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-19 11:25:51,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982708689] [2022-01-19 11:25:51,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:25:51,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-19 11:25:51,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:25:51,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-19 11:25:51,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=734, Unknown=0, NotChecked=0, Total=812 [2022-01-19 11:25:51,288 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 195 [2022-01-19 11:25:51,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 529 transitions, 5650 flow. Second operand has 29 states, 29 states have (on average 90.37931034482759) internal successors, (2621), 29 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:51,289 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:25:51,289 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 195 [2022-01-19 11:25:51,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:25:59,282 INFO L129 PetriNetUnfolder]: 10357/24369 cut-off events. [2022-01-19 11:25:59,282 INFO L130 PetriNetUnfolder]: For 120374/120552 co-relation queries the response was YES. [2022-01-19 11:25:59,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92147 conditions, 24369 events. 10357/24369 cut-off events. For 120374/120552 co-relation queries the response was YES. Maximal size of possible extension queue 1003. Compared 257965 event pairs, 2960 based on Foata normal form. 76/24171 useless extension candidates. Maximal degree in co-relation 92060. Up to 7939 conditions per place. [2022-01-19 11:25:59,483 INFO L132 encePairwiseOnDemand]: 157/195 looper letters, 470 selfloop transitions, 260 changer transitions 0/794 dead transitions. [2022-01-19 11:25:59,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 794 transitions, 9573 flow [2022-01-19 11:25:59,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-19 11:25:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-19 11:25:59,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 3349 transitions. [2022-01-19 11:25:59,486 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4906959706959707 [2022-01-19 11:25:59,486 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 3349 transitions. [2022-01-19 11:25:59,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 3349 transitions. [2022-01-19 11:25:59,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:25:59,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 3349 transitions. [2022-01-19 11:25:59,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 95.68571428571428) internal successors, (3349), 35 states have internal predecessors, (3349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:59,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 195.0) internal successors, (7020), 36 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:59,494 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 195.0) internal successors, (7020), 36 states have internal predecessors, (7020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:25:59,494 INFO L186 Difference]: Start difference. First operand has 372 places, 529 transitions, 5650 flow. Second operand 35 states and 3349 transitions. [2022-01-19 11:25:59,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 794 transitions, 9573 flow [2022-01-19 11:26:00,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 794 transitions, 9372 flow, removed 79 selfloop flow, removed 7 redundant places. [2022-01-19 11:26:00,248 INFO L242 Difference]: Finished difference. Result has 412 places, 600 transitions, 7404 flow [2022-01-19 11:26:00,249 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=5473, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=7404, PETRI_PLACES=412, PETRI_TRANSITIONS=600} [2022-01-19 11:26:00,249 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 231 predicate places. [2022-01-19 11:26:00,249 INFO L470 AbstractCegarLoop]: Abstraction has has 412 places, 600 transitions, 7404 flow [2022-01-19 11:26:00,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 90.37931034482759) internal successors, (2621), 29 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:00,250 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:00,250 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] [2022-01-19 11:26:00,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 11:26:00,250 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)] === [2022-01-19 11:26:00,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:00,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1437984306, now seen corresponding path program 10 times [2022-01-19 11:26:00,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:00,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559868264] [2022-01-19 11:26:00,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:00,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:00,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:00,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:00,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559868264] [2022-01-19 11:26:00,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559868264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:00,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:00,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 11:26:00,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900770831] [2022-01-19 11:26:00,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:00,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 11:26:00,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:00,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 11:26:00,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-01-19 11:26:00,597 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-01-19 11:26:00,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 600 transitions, 7404 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:00,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:00,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-01-19 11:26:00,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:26:06,215 INFO L129 PetriNetUnfolder]: 8557/23494 cut-off events. [2022-01-19 11:26:06,216 INFO L130 PetriNetUnfolder]: For 135485/135730 co-relation queries the response was YES. [2022-01-19 11:26:06,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89452 conditions, 23494 events. 8557/23494 cut-off events. For 135485/135730 co-relation queries the response was YES. Maximal size of possible extension queue 1046. Compared 272506 event pairs, 2565 based on Foata normal form. 27/23046 useless extension candidates. Maximal degree in co-relation 89352. Up to 7573 conditions per place. [2022-01-19 11:26:06,461 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 429 selfloop transitions, 243 changer transitions 0/813 dead transitions. [2022-01-19 11:26:06,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 813 transitions, 11026 flow [2022-01-19 11:26:06,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 11:26:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 11:26:06,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-01-19 11:26:06,464 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-01-19 11:26:06,464 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-01-19 11:26:06,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-01-19 11:26:06,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:26:06,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-01-19 11:26:06,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 103.81818181818181) internal successors, (2284), 22 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:06,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:06,469 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:06,469 INFO L186 Difference]: Start difference. First operand has 412 places, 600 transitions, 7404 flow. Second operand 22 states and 2284 transitions. [2022-01-19 11:26:06,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 813 transitions, 11026 flow [2022-01-19 11:26:07,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 813 transitions, 10768 flow, removed 42 selfloop flow, removed 17 redundant places. [2022-01-19 11:26:07,566 INFO L242 Difference]: Finished difference. Result has 426 places, 652 transitions, 8819 flow [2022-01-19 11:26:07,567 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=7162, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8819, PETRI_PLACES=426, PETRI_TRANSITIONS=652} [2022-01-19 11:26:07,567 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 245 predicate places. [2022-01-19 11:26:07,567 INFO L470 AbstractCegarLoop]: Abstraction has has 426 places, 652 transitions, 8819 flow [2022-01-19 11:26:07,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:07,568 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:07,568 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, 1] [2022-01-19 11:26:07,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 11:26:07,568 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)] === [2022-01-19 11:26:07,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:07,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1888132436, now seen corresponding path program 11 times [2022-01-19 11:26:07,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:07,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810489088] [2022-01-19 11:26:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:07,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:07,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:07,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810489088] [2022-01-19 11:26:07,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810489088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:07,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:07,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:26:07,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830774465] [2022-01-19 11:26:07,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:07,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:26:07,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:26:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:26:07,934 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:26:07,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 652 transitions, 8819 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:07,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:07,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:26:07,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:26:11,306 INFO L129 PetriNetUnfolder]: 3474/12592 cut-off events. [2022-01-19 11:26:11,306 INFO L130 PetriNetUnfolder]: For 90970/91379 co-relation queries the response was YES. [2022-01-19 11:26:11,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51075 conditions, 12592 events. 3474/12592 cut-off events. For 90970/91379 co-relation queries the response was YES. Maximal size of possible extension queue 671. Compared 149237 event pairs, 934 based on Foata normal form. 152/12376 useless extension candidates. Maximal degree in co-relation 50964. Up to 3753 conditions per place. [2022-01-19 11:26:11,424 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 286 selfloop transitions, 109 changer transitions 0/762 dead transitions. [2022-01-19 11:26:11,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 762 transitions, 10747 flow [2022-01-19 11:26:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:26:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:26:11,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2513 transitions. [2022-01-19 11:26:11,426 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7580693815987933 [2022-01-19 11:26:11,426 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2513 transitions. [2022-01-19 11:26:11,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2513 transitions. [2022-01-19 11:26:11,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:26:11,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2513 transitions. [2022-01-19 11:26:11,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 147.8235294117647) internal successors, (2513), 17 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:11,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:11,446 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:11,446 INFO L186 Difference]: Start difference. First operand has 426 places, 652 transitions, 8819 flow. Second operand 17 states and 2513 transitions. [2022-01-19 11:26:11,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 762 transitions, 10747 flow [2022-01-19 11:26:12,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 762 transitions, 10416 flow, removed 112 selfloop flow, removed 7 redundant places. [2022-01-19 11:26:12,092 INFO L242 Difference]: Finished difference. Result has 441 places, 667 transitions, 9046 flow [2022-01-19 11:26:12,092 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=8297, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9046, PETRI_PLACES=441, PETRI_TRANSITIONS=667} [2022-01-19 11:26:12,093 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 260 predicate places. [2022-01-19 11:26:12,093 INFO L470 AbstractCegarLoop]: Abstraction has has 441 places, 667 transitions, 9046 flow [2022-01-19 11:26:12,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:12,093 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:12,093 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] [2022-01-19 11:26:12,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 11:26:12,094 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)] === [2022-01-19 11:26:12,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:12,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1850578232, now seen corresponding path program 12 times [2022-01-19 11:26:12,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:12,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225698199] [2022-01-19 11:26:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:12,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:12,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:12,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225698199] [2022-01-19 11:26:12,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225698199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:12,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:12,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 11:26:12,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88225971] [2022-01-19 11:26:12,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:12,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 11:26:12,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:12,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 11:26:12,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-01-19 11:26:12,696 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 195 [2022-01-19 11:26:12,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 667 transitions, 9046 flow. Second operand has 24 states, 24 states have (on average 97.58333333333333) internal successors, (2342), 24 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:12,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:12,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 195 [2022-01-19 11:26:12,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:26:19,352 INFO L129 PetriNetUnfolder]: 7475/21089 cut-off events. [2022-01-19 11:26:19,352 INFO L130 PetriNetUnfolder]: For 139182/139661 co-relation queries the response was YES. [2022-01-19 11:26:19,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85586 conditions, 21089 events. 7475/21089 cut-off events. For 139182/139661 co-relation queries the response was YES. Maximal size of possible extension queue 967. Compared 244306 event pairs, 1459 based on Foata normal form. 197/20905 useless extension candidates. Maximal degree in co-relation 85468. Up to 7210 conditions per place. [2022-01-19 11:26:19,571 INFO L132 encePairwiseOnDemand]: 163/195 looper letters, 409 selfloop transitions, 296 changer transitions 0/851 dead transitions. [2022-01-19 11:26:19,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 851 transitions, 12464 flow [2022-01-19 11:26:19,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-19 11:26:19,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-01-19 11:26:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3118 transitions. [2022-01-19 11:26:19,575 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5157981803143094 [2022-01-19 11:26:19,575 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3118 transitions. [2022-01-19 11:26:19,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3118 transitions. [2022-01-19 11:26:19,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:26:19,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3118 transitions. [2022-01-19 11:26:19,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 100.58064516129032) internal successors, (3118), 31 states have internal predecessors, (3118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:19,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 195.0) internal successors, (6240), 32 states have internal predecessors, (6240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:19,582 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 195.0) internal successors, (6240), 32 states have internal predecessors, (6240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:19,582 INFO L186 Difference]: Start difference. First operand has 441 places, 667 transitions, 9046 flow. Second operand 31 states and 3118 transitions. [2022-01-19 11:26:19,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 851 transitions, 12464 flow [2022-01-19 11:26:20,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 851 transitions, 12299 flow, removed 24 selfloop flow, removed 9 redundant places. [2022-01-19 11:26:20,966 INFO L242 Difference]: Finished difference. Result has 471 places, 712 transitions, 10691 flow [2022-01-19 11:26:20,966 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=8883, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=10691, PETRI_PLACES=471, PETRI_TRANSITIONS=712} [2022-01-19 11:26:20,966 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 290 predicate places. [2022-01-19 11:26:20,966 INFO L470 AbstractCegarLoop]: Abstraction has has 471 places, 712 transitions, 10691 flow [2022-01-19 11:26:20,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 97.58333333333333) internal successors, (2342), 24 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:20,967 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:20,967 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] [2022-01-19 11:26:20,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 11:26:20,967 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)] === [2022-01-19 11:26:20,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1619467104, now seen corresponding path program 13 times [2022-01-19 11:26:20,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:20,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648649897] [2022-01-19 11:26:20,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:20,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:21,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:21,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648649897] [2022-01-19 11:26:21,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648649897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:21,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:21,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-19 11:26:21,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131265340] [2022-01-19 11:26:21,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:21,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 11:26:21,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:21,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 11:26:21,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2022-01-19 11:26:21,409 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-01-19 11:26:21,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 712 transitions, 10691 flow. Second operand has 20 states, 20 states have (on average 134.2) internal successors, (2684), 20 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:21,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:21,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-01-19 11:26:21,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:26:25,836 INFO L129 PetriNetUnfolder]: 3858/13505 cut-off events. [2022-01-19 11:26:25,837 INFO L130 PetriNetUnfolder]: For 136904/137376 co-relation queries the response was YES. [2022-01-19 11:26:25,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61071 conditions, 13505 events. 3858/13505 cut-off events. For 136904/137376 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 158697 event pairs, 1614 based on Foata normal form. 111/13294 useless extension candidates. Maximal degree in co-relation 60944. Up to 3922 conditions per place. [2022-01-19 11:26:26,094 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 410 selfloop transitions, 128 changer transitions 0/869 dead transitions. [2022-01-19 11:26:26,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 869 transitions, 14232 flow [2022-01-19 11:26:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 11:26:26,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 11:26:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2804 transitions. [2022-01-19 11:26:26,096 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.718974358974359 [2022-01-19 11:26:26,096 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2804 transitions. [2022-01-19 11:26:26,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2804 transitions. [2022-01-19 11:26:26,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:26:26,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2804 transitions. [2022-01-19 11:26:26,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 140.2) internal successors, (2804), 20 states have internal predecessors, (2804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:26,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 195.0) internal successors, (4095), 21 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:26,103 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 195.0) internal successors, (4095), 21 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:26,103 INFO L186 Difference]: Start difference. First operand has 471 places, 712 transitions, 10691 flow. Second operand 20 states and 2804 transitions. [2022-01-19 11:26:26,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 869 transitions, 14232 flow [2022-01-19 11:26:27,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 869 transitions, 13766 flow, removed 119 selfloop flow, removed 16 redundant places. [2022-01-19 11:26:27,025 INFO L242 Difference]: Finished difference. Result has 479 places, 729 transitions, 10936 flow [2022-01-19 11:26:27,025 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=10301, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10936, PETRI_PLACES=479, PETRI_TRANSITIONS=729} [2022-01-19 11:26:27,026 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 298 predicate places. [2022-01-19 11:26:27,026 INFO L470 AbstractCegarLoop]: Abstraction has has 479 places, 729 transitions, 10936 flow [2022-01-19 11:26:27,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 134.2) internal successors, (2684), 20 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:27,026 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:27,026 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] [2022-01-19 11:26:27,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 11:26:27,027 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)] === [2022-01-19 11:26:27,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:27,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1045103306, now seen corresponding path program 14 times [2022-01-19 11:26:27,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:27,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085633464] [2022-01-19 11:26:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:27,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:27,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:27,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085633464] [2022-01-19 11:26:27,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085633464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:27,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:27,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-19 11:26:27,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458165899] [2022-01-19 11:26:27,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:27,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 11:26:27,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:27,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 11:26:27,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-01-19 11:26:27,482 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-01-19 11:26:27,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 729 transitions, 10936 flow. Second operand has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:27,483 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:27,483 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-01-19 11:26:27,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:26:34,933 INFO L129 PetriNetUnfolder]: 9477/24448 cut-off events. [2022-01-19 11:26:34,933 INFO L130 PetriNetUnfolder]: For 172436/172757 co-relation queries the response was YES. [2022-01-19 11:26:35,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103076 conditions, 24448 events. 9477/24448 cut-off events. For 172436/172757 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 274276 event pairs, 3358 based on Foata normal form. 154/24138 useless extension candidates. Maximal degree in co-relation 102944. Up to 9462 conditions per place. [2022-01-19 11:26:35,342 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 556 selfloop transitions, 157 changer transitions 0/909 dead transitions. [2022-01-19 11:26:35,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 909 transitions, 14196 flow [2022-01-19 11:26:35,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 11:26:35,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 11:26:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2487 transitions. [2022-01-19 11:26:35,344 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5545150501672241 [2022-01-19 11:26:35,344 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2487 transitions. [2022-01-19 11:26:35,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2487 transitions. [2022-01-19 11:26:35,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:26:35,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2487 transitions. [2022-01-19 11:26:35,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 108.1304347826087) internal successors, (2487), 23 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:35,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:35,349 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:35,349 INFO L186 Difference]: Start difference. First operand has 479 places, 729 transitions, 10936 flow. Second operand 23 states and 2487 transitions. [2022-01-19 11:26:35,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 909 transitions, 14196 flow [2022-01-19 11:26:37,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 909 transitions, 13955 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-01-19 11:26:37,279 INFO L242 Difference]: Finished difference. Result has 491 places, 733 transitions, 11105 flow [2022-01-19 11:26:37,279 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=10695, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=11105, PETRI_PLACES=491, PETRI_TRANSITIONS=733} [2022-01-19 11:26:37,280 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 310 predicate places. [2022-01-19 11:26:37,280 INFO L470 AbstractCegarLoop]: Abstraction has has 491 places, 733 transitions, 11105 flow [2022-01-19 11:26:37,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:37,280 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:37,280 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 11:26:37,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 11:26:37,280 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)] === [2022-01-19 11:26:37,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:37,281 INFO L85 PathProgramCache]: Analyzing trace with hash 394858578, now seen corresponding path program 15 times [2022-01-19 11:26:37,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:37,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741807083] [2022-01-19 11:26:37,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:37,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:37,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:37,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741807083] [2022-01-19 11:26:37,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741807083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:37,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:37,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:26:37,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896086435] [2022-01-19 11:26:37,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:37,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:26:37,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:37,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:26:37,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:26:37,716 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:26:37,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 733 transitions, 11105 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:37,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:37,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:26:37,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:26:41,658 INFO L129 PetriNetUnfolder]: 3522/12922 cut-off events. [2022-01-19 11:26:41,658 INFO L130 PetriNetUnfolder]: For 124065/124477 co-relation queries the response was YES. [2022-01-19 11:26:41,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59620 conditions, 12922 events. 3522/12922 cut-off events. For 124065/124477 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 153718 event pairs, 1325 based on Foata normal form. 96/12653 useless extension candidates. Maximal degree in co-relation 59486. Up to 3802 conditions per place. [2022-01-19 11:26:41,901 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 327 selfloop transitions, 116 changer transitions 0/839 dead transitions. [2022-01-19 11:26:41,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 839 transitions, 13141 flow [2022-01-19 11:26:41,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:26:41,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:26:41,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2525 transitions. [2022-01-19 11:26:41,904 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7616892911010558 [2022-01-19 11:26:41,904 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2525 transitions. [2022-01-19 11:26:41,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2525 transitions. [2022-01-19 11:26:41,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:26:41,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2525 transitions. [2022-01-19 11:26:41,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.52941176470588) internal successors, (2525), 17 states have internal predecessors, (2525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:41,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:41,907 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:41,908 INFO L186 Difference]: Start difference. First operand has 491 places, 733 transitions, 11105 flow. Second operand 17 states and 2525 transitions. [2022-01-19 11:26:41,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 839 transitions, 13141 flow [2022-01-19 11:26:42,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 839 transitions, 12855 flow, removed 15 selfloop flow, removed 19 redundant places. [2022-01-19 11:26:42,783 INFO L242 Difference]: Finished difference. Result has 492 places, 746 transitions, 11444 flow [2022-01-19 11:26:42,784 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=10857, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11444, PETRI_PLACES=492, PETRI_TRANSITIONS=746} [2022-01-19 11:26:42,784 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 311 predicate places. [2022-01-19 11:26:42,784 INFO L470 AbstractCegarLoop]: Abstraction has has 492 places, 746 transitions, 11444 flow [2022-01-19 11:26:42,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:42,785 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:42,785 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] [2022-01-19 11:26:42,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 11:26:42,785 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)] === [2022-01-19 11:26:42,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:42,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1358372034, now seen corresponding path program 16 times [2022-01-19 11:26:42,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:42,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8825581] [2022-01-19 11:26:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:42,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:43,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:43,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:43,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8825581] [2022-01-19 11:26:43,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8825581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:43,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:43,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:26:43,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771629117] [2022-01-19 11:26:43,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:43,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:26:43,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:43,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:26:43,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:26:43,190 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:26:43,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 746 transitions, 11444 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:43,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:43,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:26:43,191 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:26:47,251 INFO L129 PetriNetUnfolder]: 3155/11813 cut-off events. [2022-01-19 11:26:47,251 INFO L130 PetriNetUnfolder]: For 114094/114452 co-relation queries the response was YES. [2022-01-19 11:26:47,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54032 conditions, 11813 events. 3155/11813 cut-off events. For 114094/114452 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 137515 event pairs, 1195 based on Foata normal form. 89/11563 useless extension candidates. Maximal degree in co-relation 53894. Up to 3802 conditions per place. [2022-01-19 11:26:47,375 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 292 selfloop transitions, 133 changer transitions 0/819 dead transitions. [2022-01-19 11:26:47,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 819 transitions, 12850 flow [2022-01-19 11:26:47,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:26:47,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:26:47,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2519 transitions. [2022-01-19 11:26:47,377 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7598793363499246 [2022-01-19 11:26:47,377 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2519 transitions. [2022-01-19 11:26:47,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2519 transitions. [2022-01-19 11:26:47,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:26:47,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2519 transitions. [2022-01-19 11:26:47,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.1764705882353) internal successors, (2519), 17 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:47,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:47,381 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:47,381 INFO L186 Difference]: Start difference. First operand has 492 places, 746 transitions, 11444 flow. Second operand 17 states and 2519 transitions. [2022-01-19 11:26:47,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 819 transitions, 12850 flow [2022-01-19 11:26:48,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 819 transitions, 12512 flow, removed 53 selfloop flow, removed 13 redundant places. [2022-01-19 11:26:48,269 INFO L242 Difference]: Finished difference. Result has 498 places, 749 transitions, 11532 flow [2022-01-19 11:26:48,269 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=11015, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11532, PETRI_PLACES=498, PETRI_TRANSITIONS=749} [2022-01-19 11:26:48,270 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 317 predicate places. [2022-01-19 11:26:48,270 INFO L470 AbstractCegarLoop]: Abstraction has has 498 places, 749 transitions, 11532 flow [2022-01-19 11:26:48,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:48,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:48,270 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] [2022-01-19 11:26:48,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 11:26:48,270 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)] === [2022-01-19 11:26:48,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:48,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1476288734, now seen corresponding path program 17 times [2022-01-19 11:26:48,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:48,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49685089] [2022-01-19 11:26:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:48,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:48,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:48,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49685089] [2022-01-19 11:26:48,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49685089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:48,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:48,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-19 11:26:48,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32558909] [2022-01-19 11:26:48,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:48,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-19 11:26:48,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-19 11:26:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-19 11:26:48,662 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-01-19 11:26:48,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 749 transitions, 11532 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:48,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:48,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-01-19 11:26:48,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:26:54,175 INFO L129 PetriNetUnfolder]: 5741/18908 cut-off events. [2022-01-19 11:26:54,175 INFO L130 PetriNetUnfolder]: For 170093/171838 co-relation queries the response was YES. [2022-01-19 11:26:54,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77581 conditions, 18908 events. 5741/18908 cut-off events. For 170093/171838 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 227933 event pairs, 1192 based on Foata normal form. 328/18709 useless extension candidates. Maximal degree in co-relation 77440. Up to 3010 conditions per place. [2022-01-19 11:26:54,495 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 484 selfloop transitions, 333 changer transitions 0/1047 dead transitions. [2022-01-19 11:26:54,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 1047 transitions, 17653 flow [2022-01-19 11:26:54,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 11:26:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 11:26:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-01-19 11:26:54,498 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-01-19 11:26:54,498 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-01-19 11:26:54,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-01-19 11:26:54,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:26:54,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-01-19 11:26:54,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 103.81818181818181) internal successors, (2284), 22 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:54,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:54,502 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:54,502 INFO L186 Difference]: Start difference. First operand has 498 places, 749 transitions, 11532 flow. Second operand 22 states and 2284 transitions. [2022-01-19 11:26:54,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 1047 transitions, 17653 flow [2022-01-19 11:26:55,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 1047 transitions, 17341 flow, removed 25 selfloop flow, removed 14 redundant places. [2022-01-19 11:26:55,468 INFO L242 Difference]: Finished difference. Result has 513 places, 845 transitions, 14528 flow [2022-01-19 11:26:55,468 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=11222, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=249, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=14528, PETRI_PLACES=513, PETRI_TRANSITIONS=845} [2022-01-19 11:26:55,469 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 332 predicate places. [2022-01-19 11:26:55,469 INFO L470 AbstractCegarLoop]: Abstraction has has 513 places, 845 transitions, 14528 flow [2022-01-19 11:26:55,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:55,469 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:26:55,469 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] [2022-01-19 11:26:55,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 11:26:55,469 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)] === [2022-01-19 11:26:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:26:55,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1538682734, now seen corresponding path program 18 times [2022-01-19 11:26:55,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:26:55,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925565579] [2022-01-19 11:26:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:26:55,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:26:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:26:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:26:55,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:26:55,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925565579] [2022-01-19 11:26:55,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925565579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:26:55,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:26:55,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:26:55,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562149658] [2022-01-19 11:26:55,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:26:55,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:26:55,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:26:55,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:26:55,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:26:55,846 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:26:55,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 845 transitions, 14528 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:26:55,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:26:55,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:26:55,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:27:02,887 INFO L129 PetriNetUnfolder]: 5609/22575 cut-off events. [2022-01-19 11:27:02,887 INFO L130 PetriNetUnfolder]: For 223709/224388 co-relation queries the response was YES. [2022-01-19 11:27:03,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100523 conditions, 22575 events. 5609/22575 cut-off events. For 223709/224388 co-relation queries the response was YES. Maximal size of possible extension queue 1125. Compared 303415 event pairs, 2937 based on Foata normal form. 123/22117 useless extension candidates. Maximal degree in co-relation 100374. Up to 5105 conditions per place. [2022-01-19 11:27:03,310 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 525 selfloop transitions, 79 changer transitions 0/1089 dead transitions. [2022-01-19 11:27:03,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 1089 transitions, 18322 flow [2022-01-19 11:27:03,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:27:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:27:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2545 transitions. [2022-01-19 11:27:03,312 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7677224736048266 [2022-01-19 11:27:03,312 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2545 transitions. [2022-01-19 11:27:03,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2545 transitions. [2022-01-19 11:27:03,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:27:03,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2545 transitions. [2022-01-19 11:27:03,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.7058823529412) internal successors, (2545), 17 states have internal predecessors, (2545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:03,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:03,316 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:03,316 INFO L186 Difference]: Start difference. First operand has 513 places, 845 transitions, 14528 flow. Second operand 17 states and 2545 transitions. [2022-01-19 11:27:03,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 1089 transitions, 18322 flow [2022-01-19 11:27:05,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 1089 transitions, 17983 flow, removed 101 selfloop flow, removed 10 redundant places. [2022-01-19 11:27:05,486 INFO L242 Difference]: Finished difference. Result has 526 places, 871 transitions, 14843 flow [2022-01-19 11:27:05,487 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=14278, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=845, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=767, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14843, PETRI_PLACES=526, PETRI_TRANSITIONS=871} [2022-01-19 11:27:05,487 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 345 predicate places. [2022-01-19 11:27:05,487 INFO L470 AbstractCegarLoop]: Abstraction has has 526 places, 871 transitions, 14843 flow [2022-01-19 11:27:05,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:05,488 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:27:05,488 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] [2022-01-19 11:27:05,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 11:27:05,488 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)] === [2022-01-19 11:27:05,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:27:05,488 INFO L85 PathProgramCache]: Analyzing trace with hash 576257270, now seen corresponding path program 19 times [2022-01-19 11:27:05,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:27:05,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744132007] [2022-01-19 11:27:05,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:27:05,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:27:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:27:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:27:05,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:27:05,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744132007] [2022-01-19 11:27:05,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744132007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:27:05,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:27:05,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:27:05,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293821995] [2022-01-19 11:27:05,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:27:05,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:27:05,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:27:05,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:27:05,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:27:05,915 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:27:05,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 871 transitions, 14843 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:05,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:27:05,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:27:05,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:27:13,038 INFO L129 PetriNetUnfolder]: 5701/22644 cut-off events. [2022-01-19 11:27:13,038 INFO L130 PetriNetUnfolder]: For 223907/224533 co-relation queries the response was YES. [2022-01-19 11:27:13,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103166 conditions, 22644 events. 5701/22644 cut-off events. For 223907/224533 co-relation queries the response was YES. Maximal size of possible extension queue 1126. Compared 303503 event pairs, 2578 based on Foata normal form. 117/22171 useless extension candidates. Maximal degree in co-relation 103010. Up to 5105 conditions per place. [2022-01-19 11:27:13,311 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 512 selfloop transitions, 92 changer transitions 0/1089 dead transitions. [2022-01-19 11:27:13,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1089 transitions, 18447 flow [2022-01-19 11:27:13,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:27:13,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:27:13,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2535 transitions. [2022-01-19 11:27:13,314 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2022-01-19 11:27:13,314 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2535 transitions. [2022-01-19 11:27:13,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2535 transitions. [2022-01-19 11:27:13,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:27:13,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2535 transitions. [2022-01-19 11:27:13,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.11764705882354) internal successors, (2535), 17 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:13,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:13,317 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:13,317 INFO L186 Difference]: Start difference. First operand has 526 places, 871 transitions, 14843 flow. Second operand 17 states and 2535 transitions. [2022-01-19 11:27:13,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 1089 transitions, 18447 flow [2022-01-19 11:27:15,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 1089 transitions, 18278 flow, removed 34 selfloop flow, removed 9 redundant places. [2022-01-19 11:27:15,415 INFO L242 Difference]: Finished difference. Result has 539 places, 894 transitions, 15257 flow [2022-01-19 11:27:15,415 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=14674, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=871, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=782, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15257, PETRI_PLACES=539, PETRI_TRANSITIONS=894} [2022-01-19 11:27:15,416 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 358 predicate places. [2022-01-19 11:27:15,416 INFO L470 AbstractCegarLoop]: Abstraction has has 539 places, 894 transitions, 15257 flow [2022-01-19 11:27:15,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:15,416 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:27:15,416 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] [2022-01-19 11:27:15,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 11:27:15,416 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)] === [2022-01-19 11:27:15,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:27:15,416 INFO L85 PathProgramCache]: Analyzing trace with hash 182568224, now seen corresponding path program 20 times [2022-01-19 11:27:15,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:27:15,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735850912] [2022-01-19 11:27:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:27:15,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:27:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:27:15,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:27:15,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:27:15,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735850912] [2022-01-19 11:27:15,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735850912] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:27:15,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:27:15,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:27:15,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313492258] [2022-01-19 11:27:15,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:27:15,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:27:15,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:27:15,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:27:15,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:27:15,751 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:27:15,752 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 894 transitions, 15257 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:15,752 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:27:15,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:27:15,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:27:24,295 INFO L129 PetriNetUnfolder]: 6258/25509 cut-off events. [2022-01-19 11:27:24,295 INFO L130 PetriNetUnfolder]: For 268849/269613 co-relation queries the response was YES. [2022-01-19 11:27:24,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118332 conditions, 25509 events. 6258/25509 cut-off events. For 268849/269613 co-relation queries the response was YES. Maximal size of possible extension queue 1283. Compared 351360 event pairs, 2614 based on Foata normal form. 150/25029 useless extension candidates. Maximal degree in co-relation 118170. Up to 5105 conditions per place. [2022-01-19 11:27:24,630 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 549 selfloop transitions, 103 changer transitions 0/1137 dead transitions. [2022-01-19 11:27:24,630 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 1137 transitions, 19308 flow [2022-01-19 11:27:24,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:27:24,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:27:24,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2546 transitions. [2022-01-19 11:27:24,647 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7680241327300151 [2022-01-19 11:27:24,647 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2546 transitions. [2022-01-19 11:27:24,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2546 transitions. [2022-01-19 11:27:24,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:27:24,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2546 transitions. [2022-01-19 11:27:24,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.76470588235293) internal successors, (2546), 17 states have internal predecessors, (2546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:24,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:24,657 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:24,657 INFO L186 Difference]: Start difference. First operand has 539 places, 894 transitions, 15257 flow. Second operand 17 states and 2546 transitions. [2022-01-19 11:27:24,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 1137 transitions, 19308 flow [2022-01-19 11:27:27,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 1137 transitions, 19121 flow, removed 56 selfloop flow, removed 8 redundant places. [2022-01-19 11:27:27,481 INFO L242 Difference]: Finished difference. Result has 552 places, 912 transitions, 15680 flow [2022-01-19 11:27:27,482 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=15096, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=791, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15680, PETRI_PLACES=552, PETRI_TRANSITIONS=912} [2022-01-19 11:27:27,482 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 371 predicate places. [2022-01-19 11:27:27,482 INFO L470 AbstractCegarLoop]: Abstraction has has 552 places, 912 transitions, 15680 flow [2022-01-19 11:27:27,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:27,483 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:27:27,483 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] [2022-01-19 11:27:27,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 11:27:27,483 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)] === [2022-01-19 11:27:27,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:27:27,483 INFO L85 PathProgramCache]: Analyzing trace with hash 166678962, now seen corresponding path program 21 times [2022-01-19 11:27:27,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:27:27,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883667398] [2022-01-19 11:27:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:27:27,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:27:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:27:28,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:27:28,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:27:28,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883667398] [2022-01-19 11:27:28,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883667398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:27:28,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:27:28,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-19 11:27:28,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552245693] [2022-01-19 11:27:28,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:27:28,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-19 11:27:28,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:27:28,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-19 11:27:28,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-19 11:27:28,071 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-01-19 11:27:28,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 912 transitions, 15680 flow. Second operand has 25 states, 25 states have (on average 91.72) internal successors, (2293), 25 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:28,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:27:28,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-01-19 11:27:28,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:27:47,222 INFO L129 PetriNetUnfolder]: 19105/50283 cut-off events. [2022-01-19 11:27:47,222 INFO L130 PetriNetUnfolder]: For 507802/507890 co-relation queries the response was YES. [2022-01-19 11:27:48,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231794 conditions, 50283 events. 19105/50283 cut-off events. For 507802/507890 co-relation queries the response was YES. Maximal size of possible extension queue 2148. Compared 631754 event pairs, 10498 based on Foata normal form. 25/49708 useless extension candidates. Maximal degree in co-relation 231627. Up to 12851 conditions per place. [2022-01-19 11:27:48,681 INFO L132 encePairwiseOnDemand]: 163/195 looper letters, 900 selfloop transitions, 371 changer transitions 0/1336 dead transitions. [2022-01-19 11:27:48,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 1336 transitions, 24442 flow [2022-01-19 11:27:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-19 11:27:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-19 11:27:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2604 transitions. [2022-01-19 11:27:48,683 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5136094674556213 [2022-01-19 11:27:48,683 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2604 transitions. [2022-01-19 11:27:48,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2604 transitions. [2022-01-19 11:27:48,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:27:48,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2604 transitions. [2022-01-19 11:27:48,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 100.15384615384616) internal successors, (2604), 26 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:48,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 195.0) internal successors, (5265), 27 states have internal predecessors, (5265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:48,688 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 195.0) internal successors, (5265), 27 states have internal predecessors, (5265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:48,688 INFO L186 Difference]: Start difference. First operand has 552 places, 912 transitions, 15680 flow. Second operand 26 states and 2604 transitions. [2022-01-19 11:27:48,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 1336 transitions, 24442 flow [2022-01-19 11:27:55,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 1336 transitions, 24188 flow, removed 57 selfloop flow, removed 11 redundant places. [2022-01-19 11:27:55,536 INFO L242 Difference]: Finished difference. Result has 576 places, 1022 transitions, 19178 flow [2022-01-19 11:27:55,537 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=15468, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=912, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=19178, PETRI_PLACES=576, PETRI_TRANSITIONS=1022} [2022-01-19 11:27:55,537 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 395 predicate places. [2022-01-19 11:27:55,537 INFO L470 AbstractCegarLoop]: Abstraction has has 576 places, 1022 transitions, 19178 flow [2022-01-19 11:27:55,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 91.72) internal successors, (2293), 25 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:55,538 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:27:55,538 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] [2022-01-19 11:27:55,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 11:27:55,542 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)] === [2022-01-19 11:27:55,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:27:55,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1977861114, now seen corresponding path program 22 times [2022-01-19 11:27:55,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:27:55,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670438278] [2022-01-19 11:27:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:27:55,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:27:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:27:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:27:55,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:27:55,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670438278] [2022-01-19 11:27:55,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670438278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:27:55,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:27:55,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:27:55,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608403678] [2022-01-19 11:27:55,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:27:55,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:27:55,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:27:55,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:27:55,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:27:55,906 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:27:55,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 1022 transitions, 19178 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:27:55,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:27:55,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:27:55,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:28:05,452 INFO L129 PetriNetUnfolder]: 6388/25494 cut-off events. [2022-01-19 11:28:05,453 INFO L130 PetriNetUnfolder]: For 303347/304223 co-relation queries the response was YES. [2022-01-19 11:28:05,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123396 conditions, 25494 events. 6388/25494 cut-off events. For 303347/304223 co-relation queries the response was YES. Maximal size of possible extension queue 1324. Compared 349234 event pairs, 2920 based on Foata normal form. 201/24989 useless extension candidates. Maximal degree in co-relation 123220. Up to 5105 conditions per place. [2022-01-19 11:28:05,812 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 563 selfloop transitions, 99 changer transitions 0/1239 dead transitions. [2022-01-19 11:28:05,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 1239 transitions, 23224 flow [2022-01-19 11:28:05,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:28:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:28:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2535 transitions. [2022-01-19 11:28:05,814 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2022-01-19 11:28:05,814 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2535 transitions. [2022-01-19 11:28:05,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2535 transitions. [2022-01-19 11:28:05,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:28:05,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2535 transitions. [2022-01-19 11:28:05,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.11764705882354) internal successors, (2535), 17 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:05,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:05,817 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:05,817 INFO L186 Difference]: Start difference. First operand has 576 places, 1022 transitions, 19178 flow. Second operand 17 states and 2535 transitions. [2022-01-19 11:28:05,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 1239 transitions, 23224 flow [2022-01-19 11:28:09,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 1239 transitions, 22823 flow, removed 132 selfloop flow, removed 12 redundant places. [2022-01-19 11:28:09,080 INFO L242 Difference]: Finished difference. Result has 586 places, 1043 transitions, 19482 flow [2022-01-19 11:28:09,081 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=18853, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1022, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=19482, PETRI_PLACES=586, PETRI_TRANSITIONS=1043} [2022-01-19 11:28:09,081 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 405 predicate places. [2022-01-19 11:28:09,081 INFO L470 AbstractCegarLoop]: Abstraction has has 586 places, 1043 transitions, 19482 flow [2022-01-19 11:28:09,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:09,082 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:28:09,082 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] [2022-01-19 11:28:09,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 11:28:09,082 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)] === [2022-01-19 11:28:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:28:09,082 INFO L85 PathProgramCache]: Analyzing trace with hash -429044856, now seen corresponding path program 23 times [2022-01-19 11:28:09,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:28:09,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920397366] [2022-01-19 11:28:09,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:28:09,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:28:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:28:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:28:09,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:28:09,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920397366] [2022-01-19 11:28:09,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920397366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:28:09,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:28:09,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-19 11:28:09,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970313601] [2022-01-19 11:28:09,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:28:09,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 11:28:09,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:28:09,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 11:28:09,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-01-19 11:28:09,509 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-01-19 11:28:09,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 1043 transitions, 19482 flow. Second operand has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:09,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:28:09,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-01-19 11:28:09,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:28:27,825 INFO L129 PetriNetUnfolder]: 18008/48591 cut-off events. [2022-01-19 11:28:27,825 INFO L130 PetriNetUnfolder]: For 506351/506955 co-relation queries the response was YES. [2022-01-19 11:28:29,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227835 conditions, 48591 events. 18008/48591 cut-off events. For 506351/506955 co-relation queries the response was YES. Maximal size of possible extension queue 2091. Compared 619679 event pairs, 9953 based on Foata normal form. 191/47732 useless extension candidates. Maximal degree in co-relation 227652. Up to 12838 conditions per place. [2022-01-19 11:28:29,559 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 1145 selfloop transitions, 96 changer transitions 0/1510 dead transitions. [2022-01-19 11:28:29,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 1510 transitions, 30077 flow [2022-01-19 11:28:29,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-19 11:28:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-01-19 11:28:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2521 transitions. [2022-01-19 11:28:29,562 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5620958751393534 [2022-01-19 11:28:29,562 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2521 transitions. [2022-01-19 11:28:29,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2521 transitions. [2022-01-19 11:28:29,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:28:29,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2521 transitions. [2022-01-19 11:28:29,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 109.6086956521739) internal successors, (2521), 23 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:29,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:29,566 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:29,566 INFO L186 Difference]: Start difference. First operand has 586 places, 1043 transitions, 19482 flow. Second operand 23 states and 2521 transitions. [2022-01-19 11:28:29,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 1510 transitions, 30077 flow [2022-01-19 11:28:37,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 1510 transitions, 29888 flow, removed 38 selfloop flow, removed 10 redundant places. [2022-01-19 11:28:37,061 INFO L242 Difference]: Finished difference. Result has 602 places, 1057 transitions, 19814 flow [2022-01-19 11:28:37,062 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=19309, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1043, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=949, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=19814, PETRI_PLACES=602, PETRI_TRANSITIONS=1057} [2022-01-19 11:28:37,062 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 421 predicate places. [2022-01-19 11:28:37,062 INFO L470 AbstractCegarLoop]: Abstraction has has 602 places, 1057 transitions, 19814 flow [2022-01-19 11:28:37,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:37,063 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:28:37,063 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] [2022-01-19 11:28:37,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 11:28:37,063 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)] === [2022-01-19 11:28:37,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:28:37,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1610688556, now seen corresponding path program 24 times [2022-01-19 11:28:37,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:28:37,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797309380] [2022-01-19 11:28:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:28:37,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:28:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:28:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:28:37,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:28:37,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797309380] [2022-01-19 11:28:37,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797309380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:28:37,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:28:37,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:28:37,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980458484] [2022-01-19 11:28:37,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:28:37,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:28:37,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:28:37,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:28:37,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:28:37,394 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:28:37,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 1057 transitions, 19814 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:37,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:28:37,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:28:37,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:28:47,052 INFO L129 PetriNetUnfolder]: 6166/25084 cut-off events. [2022-01-19 11:28:47,052 INFO L130 PetriNetUnfolder]: For 323884/324680 co-relation queries the response was YES. [2022-01-19 11:28:47,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125245 conditions, 25084 events. 6166/25084 cut-off events. For 323884/324680 co-relation queries the response was YES. Maximal size of possible extension queue 1248. Compared 344077 event pairs, 3189 based on Foata normal form. 168/24553 useless extension candidates. Maximal degree in co-relation 125058. Up to 5107 conditions per place. [2022-01-19 11:28:47,433 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 589 selfloop transitions, 90 changer transitions 0/1256 dead transitions. [2022-01-19 11:28:47,433 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 1256 transitions, 23416 flow [2022-01-19 11:28:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:28:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:28:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2547 transitions. [2022-01-19 11:28:47,435 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7683257918552037 [2022-01-19 11:28:47,435 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2547 transitions. [2022-01-19 11:28:47,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2547 transitions. [2022-01-19 11:28:47,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:28:47,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2547 transitions. [2022-01-19 11:28:47,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.8235294117647) internal successors, (2547), 17 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:47,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:47,553 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:47,553 INFO L186 Difference]: Start difference. First operand has 602 places, 1057 transitions, 19814 flow. Second operand 17 states and 2547 transitions. [2022-01-19 11:28:47,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 1256 transitions, 23416 flow [2022-01-19 11:28:51,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 1256 transitions, 23201 flow, removed 31 selfloop flow, removed 18 redundant places. [2022-01-19 11:28:51,487 INFO L242 Difference]: Finished difference. Result has 605 places, 1070 transitions, 20124 flow [2022-01-19 11:28:51,487 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=19576, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20124, PETRI_PLACES=605, PETRI_TRANSITIONS=1070} [2022-01-19 11:28:51,488 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 424 predicate places. [2022-01-19 11:28:51,488 INFO L470 AbstractCegarLoop]: Abstraction has has 605 places, 1070 transitions, 20124 flow [2022-01-19 11:28:51,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:51,489 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:28:51,489 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] [2022-01-19 11:28:51,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 11:28:51,489 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)] === [2022-01-19 11:28:51,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:28:51,489 INFO L85 PathProgramCache]: Analyzing trace with hash -980206890, now seen corresponding path program 25 times [2022-01-19 11:28:51,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:28:51,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53719848] [2022-01-19 11:28:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:28:51,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:28:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:28:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:28:51,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:28:51,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53719848] [2022-01-19 11:28:51,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53719848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:28:51,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:28:51,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-19 11:28:51,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511529117] [2022-01-19 11:28:51,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:28:51,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-19 11:28:51,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:28:51,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-19 11:28:51,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-19 11:28:51,827 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-01-19 11:28:51,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 1070 transitions, 20124 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:28:51,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:28:51,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-01-19 11:28:51,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:29:01,391 INFO L129 PetriNetUnfolder]: 5768/23591 cut-off events. [2022-01-19 11:29:01,392 INFO L130 PetriNetUnfolder]: For 310534/311240 co-relation queries the response was YES. [2022-01-19 11:29:02,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118646 conditions, 23591 events. 5768/23591 cut-off events. For 310534/311240 co-relation queries the response was YES. Maximal size of possible extension queue 1137. Compared 320073 event pairs, 2972 based on Foata normal form. 129/23044 useless extension candidates. Maximal degree in co-relation 118454. Up to 5105 conditions per place. [2022-01-19 11:29:02,075 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 541 selfloop transitions, 118 changer transitions 0/1218 dead transitions. [2022-01-19 11:29:02,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 1218 transitions, 22686 flow [2022-01-19 11:29:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 11:29:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 11:29:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2543 transitions. [2022-01-19 11:29:02,077 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7671191553544495 [2022-01-19 11:29:02,077 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2543 transitions. [2022-01-19 11:29:02,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2543 transitions. [2022-01-19 11:29:02,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:29:02,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2543 transitions. [2022-01-19 11:29:02,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.58823529411765) internal successors, (2543), 17 states have internal predecessors, (2543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:29:02,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:29:02,080 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:29:02,080 INFO L186 Difference]: Start difference. First operand has 605 places, 1070 transitions, 20124 flow. Second operand 17 states and 2543 transitions. [2022-01-19 11:29:02,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 1218 transitions, 22686 flow [2022-01-19 11:29:05,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 1218 transitions, 22470 flow, removed 46 selfloop flow, removed 11 redundant places. [2022-01-19 11:29:05,899 INFO L242 Difference]: Finished difference. Result has 612 places, 1052 transitions, 19737 flow [2022-01-19 11:29:05,900 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=19384, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=930, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=19737, PETRI_PLACES=612, PETRI_TRANSITIONS=1052} [2022-01-19 11:29:05,900 INFO L334 CegarLoopForPetriNet]: 181 programPoint places, 431 predicate places. [2022-01-19 11:29:05,900 INFO L470 AbstractCegarLoop]: Abstraction has has 612 places, 1052 transitions, 19737 flow [2022-01-19 11:29:05,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:29:05,900 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:29:05,901 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] [2022-01-19 11:29:05,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 11:29:05,901 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)] === [2022-01-19 11:29:05,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:29:05,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1746498980, now seen corresponding path program 26 times [2022-01-19 11:29:05,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:29:05,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016140291] [2022-01-19 11:29:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:29:05,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:29:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:29:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 11:29:06,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:29:06,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016140291] [2022-01-19 11:29:06,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016140291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:29:06,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:29:06,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-19 11:29:06,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7479456] [2022-01-19 11:29:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:29:06,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-19 11:29:06,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:29:06,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-19 11:29:06,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-19 11:29:06,432 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-01-19 11:29:06,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 1052 transitions, 19737 flow. Second operand has 25 states, 25 states have (on average 91.72) internal successors, (2293), 25 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:29:06,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:29:06,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-01-19 11:29:06,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:29:26,672 INFO L129 PetriNetUnfolder]: 17724/47279 cut-off events. [2022-01-19 11:29:26,673 INFO L130 PetriNetUnfolder]: For 572603/572655 co-relation queries the response was YES. [2022-01-19 11:29:28,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229651 conditions, 47279 events. 17724/47279 cut-off events. For 572603/572655 co-relation queries the response was YES. Maximal size of possible extension queue 1856. Compared 587669 event pairs, 9673 based on Foata normal form. 22/46682 useless extension candidates. Maximal degree in co-relation 229457. Up to 12986 conditions per place. [2022-01-19 11:29:28,260 INFO L132 encePairwiseOnDemand]: 164/195 looper letters, 1119 selfloop transitions, 498 changer transitions 0/1682 dead transitions. [2022-01-19 11:29:28,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 1682 transitions, 34261 flow [2022-01-19 11:29:28,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-19 11:29:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-01-19 11:29:28,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3055 transitions. [2022-01-19 11:29:28,263 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5053763440860215 [2022-01-19 11:29:28,263 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3055 transitions. [2022-01-19 11:29:28,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3055 transitions. [2022-01-19 11:29:28,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:29:28,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3055 transitions. [2022-01-19 11:29:28,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 98.54838709677419) internal successors, (3055), 31 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:29:28,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 195.0) internal successors, (6240), 32 states have internal predecessors, (6240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:29:28,268 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 195.0) internal successors, (6240), 32 states have internal predecessors, (6240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 11:29:28,268 INFO L186 Difference]: Start difference. First operand has 612 places, 1052 transitions, 19737 flow. Second operand 31 states and 3055 transitions. [2022-01-19 11:29:28,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 1682 transitions, 34261 flow