/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:45:29,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:45:29,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:45:29,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:45:29,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 22:45:29,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 22:45:29,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 22:45:29,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 22:45:29,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 22:45:29,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 22:45:29,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 22:45:29,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 22:45:29,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 22:45:29,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 22:45:29,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 22:45:29,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 22:45:29,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-13 22:45:29,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:45:29,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:45:29,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:45:29,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-13 22:45:29,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:45:29,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:45:29,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:45:29,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:45:29,715 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:45:29,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:45:29,715 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:45:29,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:45:29,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:45:29,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:45:29,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:45:29,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:45:29,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:45:29,717 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:45:29,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:45:29,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:45:29,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:45:29,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:45:29,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:45:29,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:45:29,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:45:29,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:45:29,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:45:29,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:45:29,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:45:29,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:45:29,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:45:29,720 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:45:29,720 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-13 22:45:29,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:45:29,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:45:29,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:45:29,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:45:29,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:45:29,985 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:45:29,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-10-13 22:45:30,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312aa54b9/b0732227ebeb49809493b17b58a095f3/FLAG0d9212d71 [2021-10-13 22:45:30,609 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:45:30,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-10-13 22:45:30,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312aa54b9/b0732227ebeb49809493b17b58a095f3/FLAG0d9212d71 [2021-10-13 22:45:31,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312aa54b9/b0732227ebeb49809493b17b58a095f3 [2021-10-13 22:45:31,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:45:31,080 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:45:31,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:45:31,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:45:31,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:45:31,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:45:31" (1/1) ... [2021-10-13 22:45:31,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6a4410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:31, skipping insertion in model container [2021-10-13 22:45:31,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:45:31" (1/1) ... [2021-10-13 22:45:31,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:45:31,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:45:31,334 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-13 22:45:31,833 WARN L228 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_2-container_of.i[75002,75015] [2021-10-13 22:45:31,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:45:31,888 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:45:31,899 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-13 22:45:31,938 WARN L228 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_2-container_of.i[75002,75015] [2021-10-13 22:45:31,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:45:32,029 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:45:32,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32 WrapperNode [2021-10-13 22:45:32,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:45:32,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:45:32,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:45:32,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:45:32,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:45:32,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:45:32,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:45:32,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:45:32,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:45:32,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:45:32,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:45:32,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:45:32,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (1/1) ... [2021-10-13 22:45:32,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:45:32,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:45:32,168 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) [2021-10-13 22:45:32,199 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 [2021-10-13 22:45:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 22:45:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:45:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 22:45:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:45:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 22:45:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:45:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:45:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-10-13 22:45:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-10-13 22:45:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:45:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:45:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:45:32,231 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:45:32,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:45:32,800 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-13 22:45:32,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:45:32 BoogieIcfgContainer [2021-10-13 22:45:32,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:45:32,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:45:32,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:45:32,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:45:32,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:45:31" (1/3) ... [2021-10-13 22:45:32,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57454a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:45:32, skipping insertion in model container [2021-10-13 22:45:32,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:45:32" (2/3) ... [2021-10-13 22:45:32,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57454a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:45:32, skipping insertion in model container [2021-10-13 22:45:32,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:45:32" (3/3) ... [2021-10-13 22:45:32,813 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2021-10-13 22:45:32,818 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:45:32,818 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 22:45:32,819 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:45:32,866 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,866 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,866 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,866 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,866 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,867 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,867 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,867 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,868 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,868 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,868 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,868 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,868 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,868 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,869 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,869 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,870 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,871 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,871 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,871 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,871 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,871 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,871 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,872 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,872 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,872 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,872 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,872 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,872 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,872 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,873 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,873 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,873 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,874 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,874 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,874 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,874 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,874 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,874 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,875 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,875 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,876 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,876 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,877 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,877 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,877 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,877 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,877 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,878 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,878 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,878 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,878 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,878 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,879 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,880 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,881 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,882 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,883 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,884 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,885 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,888 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,894 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,894 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,895 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,895 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,896 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,896 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,896 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,896 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,896 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,896 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,896 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,899 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,900 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,900 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,900 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,901 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,901 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,901 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,904 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,904 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,904 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,904 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,904 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,904 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,905 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,905 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:45:32,911 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 22:45:32,961 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:45:32,968 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, mConcurrency=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 [2021-10-13 22:45:32,969 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 22:45:32,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 141 transitions, 298 flow [2021-10-13 22:45:33,053 INFO L129 PetriNetUnfolder]: 8/177 cut-off events. [2021-10-13 22:45:33,053 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-13 22:45:33,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 177 events. 8/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 299 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 96. Up to 4 conditions per place. [2021-10-13 22:45:33,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 141 transitions, 298 flow [2021-10-13 22:45:33,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 129 transitions, 270 flow [2021-10-13 22:45:33,089 INFO L129 PetriNetUnfolder]: 0/81 cut-off events. [2021-10-13 22:45:33,090 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 22:45:33,091 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:33,091 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] [2021-10-13 22:45:33,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:33,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:33,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1601756939, now seen corresponding path program 1 times [2021-10-13 22:45:33,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:33,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795500257] [2021-10-13 22:45:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:33,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:33,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:33,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795500257] [2021-10-13 22:45:33,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795500257] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:33,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:33,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 22:45:33,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850161097] [2021-10-13 22:45:33,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 22:45:33,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:33,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 22:45:33,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 22:45:33,583 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 141 [2021-10-13 22:45:33,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 129 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:33,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:33,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 141 [2021-10-13 22:45:33,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:34,204 INFO L129 PetriNetUnfolder]: 826/1756 cut-off events. [2021-10-13 22:45:34,204 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-13 22:45:34,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3218 conditions, 1756 events. 826/1756 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10692 event pairs, 181 based on Foata normal form. 17/1734 useless extension candidates. Maximal degree in co-relation 3040. Up to 582 conditions per place. [2021-10-13 22:45:34,272 INFO L132 encePairwiseOnDemand]: 121/141 looper letters, 94 selfloop transitions, 44 changer transitions 0/213 dead transitions. [2021-10-13 22:45:34,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 213 transitions, 714 flow [2021-10-13 22:45:34,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 22:45:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-13 22:45:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1291 transitions. [2021-10-13 22:45:34,293 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6540020263424519 [2021-10-13 22:45:34,294 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1291 transitions. [2021-10-13 22:45:34,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1291 transitions. [2021-10-13 22:45:34,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:34,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1291 transitions. [2021-10-13 22:45:34,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 92.21428571428571) internal successors, (1291), 14 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:34,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:34,318 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:34,320 INFO L186 Difference]: Start difference. First operand has 131 places, 129 transitions, 270 flow. Second operand 14 states and 1291 transitions. [2021-10-13 22:45:34,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 213 transitions, 714 flow [2021-10-13 22:45:34,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 213 transitions, 706 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-13 22:45:34,332 INFO L242 Difference]: Finished difference. Result has 145 places, 162 transitions, 540 flow [2021-10-13 22:45:34,334 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=540, PETRI_PLACES=145, PETRI_TRANSITIONS=162} [2021-10-13 22:45:34,335 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 14 predicate places. [2021-10-13 22:45:34,335 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 162 transitions, 540 flow [2021-10-13 22:45:34,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:34,336 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:34,336 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] [2021-10-13 22:45:34,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:45:34,337 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:34,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:34,338 INFO L82 PathProgramCache]: Analyzing trace with hash 350998619, now seen corresponding path program 1 times [2021-10-13 22:45:34,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:34,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951724419] [2021-10-13 22:45:34,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:34,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:34,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:34,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:34,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951724419] [2021-10-13 22:45:34,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951724419] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:34,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:34,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 22:45:34,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52269534] [2021-10-13 22:45:34,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 22:45:34,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:34,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 22:45:34,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 22:45:34,507 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 141 [2021-10-13 22:45:34,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 162 transitions, 540 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:34,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:34,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 141 [2021-10-13 22:45:34,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:35,034 INFO L129 PetriNetUnfolder]: 1080/2291 cut-off events. [2021-10-13 22:45:35,034 INFO L130 PetriNetUnfolder]: For 10266/10299 co-relation queries the response was YES. [2021-10-13 22:45:35,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8619 conditions, 2291 events. 1080/2291 cut-off events. For 10266/10299 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 15233 event pairs, 237 based on Foata normal form. 47/2316 useless extension candidates. Maximal degree in co-relation 7630. Up to 825 conditions per place. [2021-10-13 22:45:35,057 INFO L132 encePairwiseOnDemand]: 126/141 looper letters, 66 selfloop transitions, 40 changer transitions 71/252 dead transitions. [2021-10-13 22:45:35,057 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 252 transitions, 1605 flow [2021-10-13 22:45:35,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 22:45:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-13 22:45:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1023 transitions. [2021-10-13 22:45:35,060 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2021-10-13 22:45:35,060 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1023 transitions. [2021-10-13 22:45:35,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1023 transitions. [2021-10-13 22:45:35,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:35,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1023 transitions. [2021-10-13 22:45:35,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,067 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,067 INFO L186 Difference]: Start difference. First operand has 145 places, 162 transitions, 540 flow. Second operand 11 states and 1023 transitions. [2021-10-13 22:45:35,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 252 transitions, 1605 flow [2021-10-13 22:45:35,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 252 transitions, 1605 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-13 22:45:35,082 INFO L242 Difference]: Finished difference. Result has 163 places, 166 transitions, 842 flow [2021-10-13 22:45:35,082 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=842, PETRI_PLACES=163, PETRI_TRANSITIONS=166} [2021-10-13 22:45:35,083 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 32 predicate places. [2021-10-13 22:45:35,083 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 166 transitions, 842 flow [2021-10-13 22:45:35,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,083 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:35,084 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] [2021-10-13 22:45:35,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:45:35,084 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:35,085 INFO L82 PathProgramCache]: Analyzing trace with hash 777925316, now seen corresponding path program 1 times [2021-10-13 22:45:35,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:35,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259676772] [2021-10-13 22:45:35,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:35,085 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:35,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:35,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:35,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259676772] [2021-10-13 22:45:35,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259676772] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:35,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:35,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:45:35,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026886322] [2021-10-13 22:45:35,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:45:35,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:35,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:45:35,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:45:35,205 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 141 [2021-10-13 22:45:35,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 166 transitions, 842 flow. Second operand has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:35,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 141 [2021-10-13 22:45:35,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:35,253 INFO L129 PetriNetUnfolder]: 4/126 cut-off events. [2021-10-13 22:45:35,253 INFO L130 PetriNetUnfolder]: For 444/504 co-relation queries the response was YES. [2021-10-13 22:45:35,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 126 events. 4/126 cut-off events. For 444/504 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 151 event pairs, 4 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 274. Up to 13 conditions per place. [2021-10-13 22:45:35,254 INFO L132 encePairwiseOnDemand]: 136/141 looper letters, 5 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2021-10-13 22:45:35,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 102 transitions, 324 flow [2021-10-13 22:45:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 22:45:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-13 22:45:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 742 transitions. [2021-10-13 22:45:35,261 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8770685579196218 [2021-10-13 22:45:35,261 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 742 transitions. [2021-10-13 22:45:35,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 742 transitions. [2021-10-13 22:45:35,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:35,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 742 transitions. [2021-10-13 22:45:35,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.66666666666667) internal successors, (742), 6 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,266 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,266 INFO L186 Difference]: Start difference. First operand has 163 places, 166 transitions, 842 flow. Second operand 6 states and 742 transitions. [2021-10-13 22:45:35,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 102 transitions, 324 flow [2021-10-13 22:45:35,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 102 transitions, 234 flow, removed 40 selfloop flow, removed 15 redundant places. [2021-10-13 22:45:35,270 INFO L242 Difference]: Finished difference. Result has 115 places, 102 transitions, 224 flow [2021-10-13 22:45:35,270 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=115, PETRI_TRANSITIONS=102} [2021-10-13 22:45:35,270 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, -16 predicate places. [2021-10-13 22:45:35,271 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 102 transitions, 224 flow [2021-10-13 22:45:35,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:35,271 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:35,272 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] [2021-10-13 22:45:35,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:45:35,272 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:35,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:35,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1853542559, now seen corresponding path program 1 times [2021-10-13 22:45:35,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:35,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114987793] [2021-10-13 22:45:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:35,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:36,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:36,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114987793] [2021-10-13 22:45:36,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114987793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:36,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:36,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:45:36,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047548152] [2021-10-13 22:45:36,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:45:36,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:36,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:45:36,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:45:36,151 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:45:36,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 102 transitions, 224 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:36,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:36,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:45:36,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:37,280 INFO L129 PetriNetUnfolder]: 362/961 cut-off events. [2021-10-13 22:45:37,280 INFO L130 PetriNetUnfolder]: For 133/136 co-relation queries the response was YES. [2021-10-13 22:45:37,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 961 events. 362/961 cut-off events. For 133/136 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5042 event pairs, 158 based on Foata normal form. 0/935 useless extension candidates. Maximal degree in co-relation 1889. Up to 294 conditions per place. [2021-10-13 22:45:37,286 INFO L132 encePairwiseOnDemand]: 120/141 looper letters, 92 selfloop transitions, 23 changer transitions 0/163 dead transitions. [2021-10-13 22:45:37,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 163 transitions, 610 flow [2021-10-13 22:45:37,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 22:45:37,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-10-13 22:45:37,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1356 transitions. [2021-10-13 22:45:37,290 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4808510638297872 [2021-10-13 22:45:37,290 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1356 transitions. [2021-10-13 22:45:37,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1356 transitions. [2021-10-13 22:45:37,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:37,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1356 transitions. [2021-10-13 22:45:37,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 67.8) internal successors, (1356), 20 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:37,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 141.0) internal successors, (2961), 21 states have internal predecessors, (2961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:37,299 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 141.0) internal successors, (2961), 21 states have internal predecessors, (2961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:37,299 INFO L186 Difference]: Start difference. First operand has 115 places, 102 transitions, 224 flow. Second operand 20 states and 1356 transitions. [2021-10-13 22:45:37,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 163 transitions, 610 flow [2021-10-13 22:45:37,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 163 transitions, 603 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-13 22:45:37,306 INFO L242 Difference]: Finished difference. Result has 142 places, 117 transitions, 356 flow [2021-10-13 22:45:37,307 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=356, PETRI_PLACES=142, PETRI_TRANSITIONS=117} [2021-10-13 22:45:37,307 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 11 predicate places. [2021-10-13 22:45:37,307 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 117 transitions, 356 flow [2021-10-13 22:45:37,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:37,308 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:37,308 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] [2021-10-13 22:45:37,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:45:37,309 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:37,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1829535015, now seen corresponding path program 2 times [2021-10-13 22:45:37,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:37,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096356093] [2021-10-13 22:45:37,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:37,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:37,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:37,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096356093] [2021-10-13 22:45:37,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096356093] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:37,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:37,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:45:37,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411477326] [2021-10-13 22:45:37,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:45:37,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:37,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:45:37,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:45:37,977 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:45:37,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 117 transitions, 356 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:37,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:37,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:45:37,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:39,199 INFO L129 PetriNetUnfolder]: 458/1208 cut-off events. [2021-10-13 22:45:39,200 INFO L130 PetriNetUnfolder]: For 556/577 co-relation queries the response was YES. [2021-10-13 22:45:39,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 1208 events. 458/1208 cut-off events. For 556/577 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7253 event pairs, 41 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 2751. Up to 250 conditions per place. [2021-10-13 22:45:39,210 INFO L132 encePairwiseOnDemand]: 117/141 looper letters, 119 selfloop transitions, 27 changer transitions 0/198 dead transitions. [2021-10-13 22:45:39,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 198 transitions, 948 flow [2021-10-13 22:45:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 22:45:39,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-13 22:45:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1306 transitions. [2021-10-13 22:45:39,215 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48749533407988055 [2021-10-13 22:45:39,215 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1306 transitions. [2021-10-13 22:45:39,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1306 transitions. [2021-10-13 22:45:39,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:39,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1306 transitions. [2021-10-13 22:45:39,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 68.73684210526316) internal successors, (1306), 19 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:39,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:39,224 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:39,224 INFO L186 Difference]: Start difference. First operand has 142 places, 117 transitions, 356 flow. Second operand 19 states and 1306 transitions. [2021-10-13 22:45:39,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 198 transitions, 948 flow [2021-10-13 22:45:39,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 198 transitions, 939 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-13 22:45:39,231 INFO L242 Difference]: Finished difference. Result has 163 places, 131 transitions, 517 flow [2021-10-13 22:45:39,232 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=517, PETRI_PLACES=163, PETRI_TRANSITIONS=131} [2021-10-13 22:45:39,232 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 32 predicate places. [2021-10-13 22:45:39,232 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 131 transitions, 517 flow [2021-10-13 22:45:39,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:39,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:39,233 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] [2021-10-13 22:45:39,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:45:39,233 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:39,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:39,234 INFO L82 PathProgramCache]: Analyzing trace with hash 732569657, now seen corresponding path program 3 times [2021-10-13 22:45:39,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:39,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178913139] [2021-10-13 22:45:39,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:39,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:39,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:39,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:39,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178913139] [2021-10-13 22:45:39,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178913139] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:39,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:39,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:45:39,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217129659] [2021-10-13 22:45:39,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:45:39,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:45:39,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:45:39,853 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:45:39,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 131 transitions, 517 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:39,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:39,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:45:39,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:41,311 INFO L129 PetriNetUnfolder]: 739/2092 cut-off events. [2021-10-13 22:45:41,312 INFO L130 PetriNetUnfolder]: For 2010/2094 co-relation queries the response was YES. [2021-10-13 22:45:41,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5570 conditions, 2092 events. 739/2092 cut-off events. For 2010/2094 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 15570 event pairs, 112 based on Foata normal form. 13/2041 useless extension candidates. Maximal degree in co-relation 5543. Up to 600 conditions per place. [2021-10-13 22:45:41,329 INFO L132 encePairwiseOnDemand]: 119/141 looper letters, 154 selfloop transitions, 39 changer transitions 0/245 dead transitions. [2021-10-13 22:45:41,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 245 transitions, 1485 flow [2021-10-13 22:45:41,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:45:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-13 22:45:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1446 transitions. [2021-10-13 22:45:41,333 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48834853090172237 [2021-10-13 22:45:41,333 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1446 transitions. [2021-10-13 22:45:41,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1446 transitions. [2021-10-13 22:45:41,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:41,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1446 transitions. [2021-10-13 22:45:41,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 68.85714285714286) internal successors, (1446), 21 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:41,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:41,381 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:41,381 INFO L186 Difference]: Start difference. First operand has 163 places, 131 transitions, 517 flow. Second operand 21 states and 1446 transitions. [2021-10-13 22:45:41,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 245 transitions, 1485 flow [2021-10-13 22:45:41,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 245 transitions, 1455 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-10-13 22:45:41,394 INFO L242 Difference]: Finished difference. Result has 185 places, 156 transitions, 816 flow [2021-10-13 22:45:41,394 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=816, PETRI_PLACES=185, PETRI_TRANSITIONS=156} [2021-10-13 22:45:41,395 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 54 predicate places. [2021-10-13 22:45:41,395 INFO L470 AbstractCegarLoop]: Abstraction has has 185 places, 156 transitions, 816 flow [2021-10-13 22:45:41,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:41,396 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:41,396 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] [2021-10-13 22:45:41,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 22:45:41,396 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:41,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:41,397 INFO L82 PathProgramCache]: Analyzing trace with hash -376114391, now seen corresponding path program 4 times [2021-10-13 22:45:41,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:41,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995717965] [2021-10-13 22:45:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:41,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:41,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:41,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:41,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995717965] [2021-10-13 22:45:41,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995717965] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:41,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:41,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:45:41,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689121859] [2021-10-13 22:45:42,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:45:42,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:42,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:45:42,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:45:42,002 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:45:42,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 156 transitions, 816 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:42,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:42,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:45:42,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:43,453 INFO L129 PetriNetUnfolder]: 930/2721 cut-off events. [2021-10-13 22:45:43,453 INFO L130 PetriNetUnfolder]: For 3777/3874 co-relation queries the response was YES. [2021-10-13 22:45:43,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7589 conditions, 2721 events. 930/2721 cut-off events. For 3777/3874 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 21708 event pairs, 415 based on Foata normal form. 20/2638 useless extension candidates. Maximal degree in co-relation 7551. Up to 1166 conditions per place. [2021-10-13 22:45:43,474 INFO L132 encePairwiseOnDemand]: 120/141 looper letters, 137 selfloop transitions, 49 changer transitions 0/238 dead transitions. [2021-10-13 22:45:43,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 238 transitions, 1636 flow [2021-10-13 22:45:43,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 22:45:43,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-10-13 22:45:43,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1365 transitions. [2021-10-13 22:45:43,478 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48404255319148937 [2021-10-13 22:45:43,478 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1365 transitions. [2021-10-13 22:45:43,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1365 transitions. [2021-10-13 22:45:43,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:43,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1365 transitions. [2021-10-13 22:45:43,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 68.25) internal successors, (1365), 20 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) [2021-10-13 22:45:43,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 141.0) internal successors, (2961), 21 states have internal predecessors, (2961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:43,487 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 141.0) internal successors, (2961), 21 states have internal predecessors, (2961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:43,487 INFO L186 Difference]: Start difference. First operand has 185 places, 156 transitions, 816 flow. Second operand 20 states and 1365 transitions. [2021-10-13 22:45:43,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 238 transitions, 1636 flow [2021-10-13 22:45:43,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 238 transitions, 1592 flow, removed 14 selfloop flow, removed 6 redundant places. [2021-10-13 22:45:43,508 INFO L242 Difference]: Finished difference. Result has 210 places, 174 transitions, 1115 flow [2021-10-13 22:45:43,508 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1115, PETRI_PLACES=210, PETRI_TRANSITIONS=174} [2021-10-13 22:45:43,509 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 79 predicate places. [2021-10-13 22:45:43,509 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 174 transitions, 1115 flow [2021-10-13 22:45:43,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:43,509 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:43,510 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] [2021-10-13 22:45:43,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 22:45:43,510 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:43,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:43,511 INFO L82 PathProgramCache]: Analyzing trace with hash 620994971, now seen corresponding path program 5 times [2021-10-13 22:45:43,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:43,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973173604] [2021-10-13 22:45:43,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:43,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:44,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:44,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973173604] [2021-10-13 22:45:44,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973173604] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:44,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:44,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:45:44,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376361485] [2021-10-13 22:45:44,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:45:44,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:44,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:45:44,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:45:44,055 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:45:44,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 174 transitions, 1115 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:44,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:44,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:45:44,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:45,669 INFO L129 PetriNetUnfolder]: 1023/3019 cut-off events. [2021-10-13 22:45:45,669 INFO L130 PetriNetUnfolder]: For 5799/5947 co-relation queries the response was YES. [2021-10-13 22:45:45,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9201 conditions, 3019 events. 1023/3019 cut-off events. For 5799/5947 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 25375 event pairs, 65 based on Foata normal form. 31/2987 useless extension candidates. Maximal degree in co-relation 9150. Up to 654 conditions per place. [2021-10-13 22:45:45,692 INFO L132 encePairwiseOnDemand]: 117/141 looper letters, 172 selfloop transitions, 64 changer transitions 0/288 dead transitions. [2021-10-13 22:45:45,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 288 transitions, 2293 flow [2021-10-13 22:45:45,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:45:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-13 22:45:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1454 transitions. [2021-10-13 22:45:45,695 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4910503208375549 [2021-10-13 22:45:45,695 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1454 transitions. [2021-10-13 22:45:45,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1454 transitions. [2021-10-13 22:45:45,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:45,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1454 transitions. [2021-10-13 22:45:45,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 69.23809523809524) internal successors, (1454), 21 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:45,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:45,703 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:45,703 INFO L186 Difference]: Start difference. First operand has 210 places, 174 transitions, 1115 flow. Second operand 21 states and 1454 transitions. [2021-10-13 22:45:45,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 288 transitions, 2293 flow [2021-10-13 22:45:45,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 288 transitions, 2246 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-10-13 22:45:45,738 INFO L242 Difference]: Finished difference. Result has 232 places, 196 transitions, 1551 flow [2021-10-13 22:45:45,739 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1551, PETRI_PLACES=232, PETRI_TRANSITIONS=196} [2021-10-13 22:45:45,739 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 101 predicate places. [2021-10-13 22:45:45,739 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 196 transitions, 1551 flow [2021-10-13 22:45:45,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:45,740 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:45,740 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] [2021-10-13 22:45:45,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 22:45:45,740 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:45,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:45,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1336217509, now seen corresponding path program 6 times [2021-10-13 22:45:45,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:45,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228713495] [2021-10-13 22:45:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:45,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:46,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:46,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228713495] [2021-10-13 22:45:46,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228713495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:46,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:46,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:45:46,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224876222] [2021-10-13 22:45:46,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:45:46,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:46,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:45:46,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:45:46,282 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:45:46,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 196 transitions, 1551 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:46,284 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:46,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:45:46,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:47,656 INFO L129 PetriNetUnfolder]: 1024/3146 cut-off events. [2021-10-13 22:45:47,656 INFO L130 PetriNetUnfolder]: For 8745/8906 co-relation queries the response was YES. [2021-10-13 22:45:47,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10312 conditions, 3146 events. 1024/3146 cut-off events. For 8745/8906 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 26514 event pairs, 329 based on Foata normal form. 24/3055 useless extension candidates. Maximal degree in co-relation 10254. Up to 1003 conditions per place. [2021-10-13 22:45:47,683 INFO L132 encePairwiseOnDemand]: 119/141 looper letters, 184 selfloop transitions, 66 changer transitions 0/302 dead transitions. [2021-10-13 22:45:47,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 302 transitions, 2785 flow [2021-10-13 22:45:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:45:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-13 22:45:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1446 transitions. [2021-10-13 22:45:47,687 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48834853090172237 [2021-10-13 22:45:47,687 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1446 transitions. [2021-10-13 22:45:47,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1446 transitions. [2021-10-13 22:45:47,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:47,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1446 transitions. [2021-10-13 22:45:47,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 68.85714285714286) internal successors, (1446), 21 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:47,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:47,696 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:47,696 INFO L186 Difference]: Start difference. First operand has 232 places, 196 transitions, 1551 flow. Second operand 21 states and 1446 transitions. [2021-10-13 22:45:47,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 302 transitions, 2785 flow [2021-10-13 22:45:47,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 302 transitions, 2687 flow, removed 33 selfloop flow, removed 8 redundant places. [2021-10-13 22:45:47,751 INFO L242 Difference]: Finished difference. Result has 255 places, 216 transitions, 1969 flow [2021-10-13 22:45:47,751 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1477, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1969, PETRI_PLACES=255, PETRI_TRANSITIONS=216} [2021-10-13 22:45:47,752 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 124 predicate places. [2021-10-13 22:45:47,752 INFO L470 AbstractCegarLoop]: Abstraction has has 255 places, 216 transitions, 1969 flow [2021-10-13 22:45:47,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:47,752 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:47,752 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] [2021-10-13 22:45:47,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 22:45:47,753 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:47,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:47,753 INFO L82 PathProgramCache]: Analyzing trace with hash 242816199, now seen corresponding path program 7 times [2021-10-13 22:45:47,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:47,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743457539] [2021-10-13 22:45:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:47,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:48,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:48,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:48,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743457539] [2021-10-13 22:45:48,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743457539] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:48,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:48,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:45:48,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308159788] [2021-10-13 22:45:48,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:45:48,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:48,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:45:48,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:45:48,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:45:48,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 216 transitions, 1969 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:48,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:48,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:45:48,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:49,696 INFO L129 PetriNetUnfolder]: 1025/3210 cut-off events. [2021-10-13 22:45:49,696 INFO L130 PetriNetUnfolder]: For 10939/11118 co-relation queries the response was YES. [2021-10-13 22:45:49,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10881 conditions, 3210 events. 1025/3210 cut-off events. For 10939/11118 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 27174 event pairs, 215 based on Foata normal form. 39/3157 useless extension candidates. Maximal degree in co-relation 10811. Up to 1062 conditions per place. [2021-10-13 22:45:49,724 INFO L132 encePairwiseOnDemand]: 119/141 looper letters, 195 selfloop transitions, 70 changer transitions 0/317 dead transitions. [2021-10-13 22:45:49,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 317 transitions, 3215 flow [2021-10-13 22:45:49,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:45:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-13 22:45:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1446 transitions. [2021-10-13 22:45:49,727 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48834853090172237 [2021-10-13 22:45:49,727 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1446 transitions. [2021-10-13 22:45:49,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1446 transitions. [2021-10-13 22:45:49,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:49,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1446 transitions. [2021-10-13 22:45:49,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 68.85714285714286) internal successors, (1446), 21 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:49,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:49,735 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:49,735 INFO L186 Difference]: Start difference. First operand has 255 places, 216 transitions, 1969 flow. Second operand 21 states and 1446 transitions. [2021-10-13 22:45:49,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 317 transitions, 3215 flow [2021-10-13 22:45:49,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 317 transitions, 3144 flow, removed 30 selfloop flow, removed 5 redundant places. [2021-10-13 22:45:49,801 INFO L242 Difference]: Finished difference. Result has 279 places, 234 transitions, 2423 flow [2021-10-13 22:45:49,801 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1898, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2423, PETRI_PLACES=279, PETRI_TRANSITIONS=234} [2021-10-13 22:45:49,801 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 148 predicate places. [2021-10-13 22:45:49,801 INFO L470 AbstractCegarLoop]: Abstraction has has 279 places, 234 transitions, 2423 flow [2021-10-13 22:45:49,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:49,802 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:49,803 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] [2021-10-13 22:45:49,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 22:45:49,803 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:49,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:49,803 INFO L82 PathProgramCache]: Analyzing trace with hash 655372921, now seen corresponding path program 8 times [2021-10-13 22:45:49,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:49,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78024360] [2021-10-13 22:45:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:49,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:50,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:50,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78024360] [2021-10-13 22:45:50,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78024360] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:50,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:50,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:45:50,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667387189] [2021-10-13 22:45:50,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:45:50,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:50,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:45:50,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:45:50,592 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:45:50,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 234 transitions, 2423 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:50,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:50,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:45:50,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:54,805 INFO L129 PetriNetUnfolder]: 2750/6857 cut-off events. [2021-10-13 22:45:54,806 INFO L130 PetriNetUnfolder]: For 31609/31723 co-relation queries the response was YES. [2021-10-13 22:45:54,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23991 conditions, 6857 events. 2750/6857 cut-off events. For 31609/31723 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 59944 event pairs, 256 based on Foata normal form. 33/6771 useless extension candidates. Maximal degree in co-relation 23911. Up to 2257 conditions per place. [2021-10-13 22:45:54,875 INFO L132 encePairwiseOnDemand]: 113/141 looper letters, 355 selfloop transitions, 98 changer transitions 0/496 dead transitions. [2021-10-13 22:45:54,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 496 transitions, 6114 flow [2021-10-13 22:45:54,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 22:45:54,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-13 22:45:54,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1573 transitions. [2021-10-13 22:45:54,879 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4648345153664303 [2021-10-13 22:45:54,879 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 1573 transitions. [2021-10-13 22:45:54,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 1573 transitions. [2021-10-13 22:45:54,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:54,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 1573 transitions. [2021-10-13 22:45:54,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 65.54166666666667) internal successors, (1573), 24 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:54,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 141.0) internal successors, (3525), 25 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:54,887 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 141.0) internal successors, (3525), 25 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:54,887 INFO L186 Difference]: Start difference. First operand has 279 places, 234 transitions, 2423 flow. Second operand 24 states and 1573 transitions. [2021-10-13 22:45:54,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 496 transitions, 6114 flow [2021-10-13 22:45:55,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 496 transitions, 5852 flow, removed 70 selfloop flow, removed 8 redundant places. [2021-10-13 22:45:55,043 INFO L242 Difference]: Finished difference. Result has 307 places, 285 transitions, 3413 flow [2021-10-13 22:45:55,044 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2319, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3413, PETRI_PLACES=307, PETRI_TRANSITIONS=285} [2021-10-13 22:45:55,044 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 176 predicate places. [2021-10-13 22:45:55,044 INFO L470 AbstractCegarLoop]: Abstraction has has 307 places, 285 transitions, 3413 flow [2021-10-13 22:45:55,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:55,045 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:55,045 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] [2021-10-13 22:45:55,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 22:45:55,045 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:55,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:55,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1435258507, now seen corresponding path program 9 times [2021-10-13 22:45:55,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:55,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883494647] [2021-10-13 22:45:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:55,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:55,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:55,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883494647] [2021-10-13 22:45:55,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883494647] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:55,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:55,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:45:55,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294200732] [2021-10-13 22:45:55,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:45:55,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:55,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:45:55,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:45:55,576 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:45:55,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 285 transitions, 3413 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:55,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:55,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:45:55,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:45:57,636 INFO L129 PetriNetUnfolder]: 2268/6539 cut-off events. [2021-10-13 22:45:57,636 INFO L130 PetriNetUnfolder]: For 39954/40699 co-relation queries the response was YES. [2021-10-13 22:45:57,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24090 conditions, 6539 events. 2268/6539 cut-off events. For 39954/40699 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 63872 event pairs, 450 based on Foata normal form. 176/6523 useless extension candidates. Maximal degree in co-relation 23998. Up to 1773 conditions per place. [2021-10-13 22:45:57,707 INFO L132 encePairwiseOnDemand]: 117/141 looper letters, 286 selfloop transitions, 96 changer transitions 0/454 dead transitions. [2021-10-13 22:45:57,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 454 transitions, 6623 flow [2021-10-13 22:45:57,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 22:45:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-13 22:45:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1303 transitions. [2021-10-13 22:45:57,710 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48637551325121314 [2021-10-13 22:45:57,710 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1303 transitions. [2021-10-13 22:45:57,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1303 transitions. [2021-10-13 22:45:57,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:45:57,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1303 transitions. [2021-10-13 22:45:57,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 68.57894736842105) internal successors, (1303), 19 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:57,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:57,716 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 141.0) internal successors, (2820), 20 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:57,716 INFO L186 Difference]: Start difference. First operand has 307 places, 285 transitions, 3413 flow. Second operand 19 states and 1303 transitions. [2021-10-13 22:45:57,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 454 transitions, 6623 flow [2021-10-13 22:45:57,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 454 transitions, 6492 flow, removed 54 selfloop flow, removed 8 redundant places. [2021-10-13 22:45:57,950 INFO L242 Difference]: Finished difference. Result has 325 places, 321 transitions, 4327 flow [2021-10-13 22:45:57,951 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3336, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4327, PETRI_PLACES=325, PETRI_TRANSITIONS=321} [2021-10-13 22:45:57,951 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 194 predicate places. [2021-10-13 22:45:57,951 INFO L470 AbstractCegarLoop]: Abstraction has has 325 places, 321 transitions, 4327 flow [2021-10-13 22:45:57,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:57,952 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:45:57,952 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] [2021-10-13 22:45:57,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 22:45:57,952 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:45:57,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:45:57,953 INFO L82 PathProgramCache]: Analyzing trace with hash 2143025061, now seen corresponding path program 10 times [2021-10-13 22:45:57,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:45:57,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366552907] [2021-10-13 22:45:57,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:45:57,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:45:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:45:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:45:58,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:45:58,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366552907] [2021-10-13 22:45:58,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366552907] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:45:58,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:45:58,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:45:58,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921415428] [2021-10-13 22:45:58,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:45:58,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:45:58,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:45:58,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:45:58,815 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:45:58,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 321 transitions, 4327 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:45:58,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:45:58,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:45:58,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:46:06,577 INFO L129 PetriNetUnfolder]: 6217/15757 cut-off events. [2021-10-13 22:46:06,578 INFO L130 PetriNetUnfolder]: For 96373/96730 co-relation queries the response was YES. [2021-10-13 22:46:06,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62311 conditions, 15757 events. 6217/15757 cut-off events. For 96373/96730 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 163687 event pairs, 2291 based on Foata normal form. 85/15475 useless extension candidates. Maximal degree in co-relation 62211. Up to 5525 conditions per place. [2021-10-13 22:46:06,756 INFO L132 encePairwiseOnDemand]: 113/141 looper letters, 555 selfloop transitions, 228 changer transitions 0/826 dead transitions. [2021-10-13 22:46:06,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 826 transitions, 12404 flow [2021-10-13 22:46:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 22:46:06,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-13 22:46:06,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 2387 transitions. [2021-10-13 22:46:06,761 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.45754264903201075 [2021-10-13 22:46:06,761 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 2387 transitions. [2021-10-13 22:46:06,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 2387 transitions. [2021-10-13 22:46:06,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:46:06,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 2387 transitions. [2021-10-13 22:46:06,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 64.51351351351352) internal successors, (2387), 37 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:06,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 141.0) internal successors, (5358), 38 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:06,772 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 141.0) internal successors, (5358), 38 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:06,772 INFO L186 Difference]: Start difference. First operand has 325 places, 321 transitions, 4327 flow. Second operand 37 states and 2387 transitions. [2021-10-13 22:46:06,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 826 transitions, 12404 flow [2021-10-13 22:46:07,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 826 transitions, 12181 flow, removed 94 selfloop flow, removed 8 redundant places. [2021-10-13 22:46:07,498 INFO L242 Difference]: Finished difference. Result has 376 places, 502 transitions, 8154 flow [2021-10-13 22:46:07,498 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=4236, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=8154, PETRI_PLACES=376, PETRI_TRANSITIONS=502} [2021-10-13 22:46:07,499 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 245 predicate places. [2021-10-13 22:46:07,499 INFO L470 AbstractCegarLoop]: Abstraction has has 376 places, 502 transitions, 8154 flow [2021-10-13 22:46:07,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:07,499 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:46:07,499 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] [2021-10-13 22:46:07,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 22:46:07,500 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:46:07,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:46:07,500 INFO L82 PathProgramCache]: Analyzing trace with hash 455513327, now seen corresponding path program 11 times [2021-10-13 22:46:07,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:46:07,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145524249] [2021-10-13 22:46:07,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:46:07,500 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:46:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:46:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:46:08,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:46:08,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145524249] [2021-10-13 22:46:08,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145524249] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:46:08,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:46:08,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:46:08,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308111728] [2021-10-13 22:46:08,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:46:08,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:46:08,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:46:08,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:46:08,401 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:46:08,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 502 transitions, 8154 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:08,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:46:08,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:46:08,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:46:15,503 INFO L129 PetriNetUnfolder]: 6215/15632 cut-off events. [2021-10-13 22:46:15,503 INFO L130 PetriNetUnfolder]: For 131168/131584 co-relation queries the response was YES. [2021-10-13 22:46:15,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68486 conditions, 15632 events. 6215/15632 cut-off events. For 131168/131584 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 162309 event pairs, 1988 based on Foata normal form. 148/15505 useless extension candidates. Maximal degree in co-relation 68363. Up to 6773 conditions per place. [2021-10-13 22:46:15,670 INFO L132 encePairwiseOnDemand]: 113/141 looper letters, 539 selfloop transitions, 172 changer transitions 0/754 dead transitions. [2021-10-13 22:46:15,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 754 transitions, 12898 flow [2021-10-13 22:46:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 22:46:15,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-10-13 22:46:15,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1637 transitions. [2021-10-13 22:46:15,673 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4643971631205674 [2021-10-13 22:46:15,674 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1637 transitions. [2021-10-13 22:46:15,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1637 transitions. [2021-10-13 22:46:15,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:46:15,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1637 transitions. [2021-10-13 22:46:15,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 65.48) internal successors, (1637), 25 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:15,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 141.0) internal successors, (3666), 26 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:15,681 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 141.0) internal successors, (3666), 26 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:15,681 INFO L186 Difference]: Start difference. First operand has 376 places, 502 transitions, 8154 flow. Second operand 25 states and 1637 transitions. [2021-10-13 22:46:15,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 754 transitions, 12898 flow [2021-10-13 22:46:17,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 754 transitions, 12674 flow, removed 108 selfloop flow, removed 4 redundant places. [2021-10-13 22:46:17,065 INFO L242 Difference]: Finished difference. Result has 404 places, 522 transitions, 8947 flow [2021-10-13 22:46:17,066 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=7946, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8947, PETRI_PLACES=404, PETRI_TRANSITIONS=522} [2021-10-13 22:46:17,066 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 273 predicate places. [2021-10-13 22:46:17,066 INFO L470 AbstractCegarLoop]: Abstraction has has 404 places, 522 transitions, 8947 flow [2021-10-13 22:46:17,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:17,067 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:46:17,067 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] [2021-10-13 22:46:17,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 22:46:17,067 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:46:17,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:46:17,068 INFO L82 PathProgramCache]: Analyzing trace with hash 366737549, now seen corresponding path program 12 times [2021-10-13 22:46:17,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:46:17,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980155746] [2021-10-13 22:46:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:46:17,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:46:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:46:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:46:17,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:46:17,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980155746] [2021-10-13 22:46:17,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980155746] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:46:17,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:46:17,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:46:17,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468146810] [2021-10-13 22:46:17,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:46:17,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:46:17,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:46:17,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:46:17,849 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:46:17,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 522 transitions, 8947 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:17,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:46:17,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:46:17,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:46:24,715 INFO L129 PetriNetUnfolder]: 6213/15748 cut-off events. [2021-10-13 22:46:24,715 INFO L130 PetriNetUnfolder]: For 133240/133572 co-relation queries the response was YES. [2021-10-13 22:46:24,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69708 conditions, 15748 events. 6213/15748 cut-off events. For 133240/133572 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 165086 event pairs, 1612 based on Foata normal form. 91/15540 useless extension candidates. Maximal degree in co-relation 69577. Up to 6773 conditions per place. [2021-10-13 22:46:24,904 INFO L132 encePairwiseOnDemand]: 115/141 looper letters, 575 selfloop transitions, 153 changer transitions 0/771 dead transitions. [2021-10-13 22:46:24,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 771 transitions, 13695 flow [2021-10-13 22:46:24,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 22:46:24,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-10-13 22:46:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1697 transitions. [2021-10-13 22:46:24,908 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.46290234588106927 [2021-10-13 22:46:24,908 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1697 transitions. [2021-10-13 22:46:24,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1697 transitions. [2021-10-13 22:46:24,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:46:24,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1697 transitions. [2021-10-13 22:46:24,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 65.26923076923077) internal successors, (1697), 26 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:24,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 141.0) internal successors, (3807), 27 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:24,915 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 141.0) internal successors, (3807), 27 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:24,915 INFO L186 Difference]: Start difference. First operand has 404 places, 522 transitions, 8947 flow. Second operand 26 states and 1697 transitions. [2021-10-13 22:46:24,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 771 transitions, 13695 flow [2021-10-13 22:46:26,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 771 transitions, 13538 flow, removed 37 selfloop flow, removed 13 redundant places. [2021-10-13 22:46:26,368 INFO L242 Difference]: Finished difference. Result has 424 places, 540 transitions, 9673 flow [2021-10-13 22:46:26,369 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=8790, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=9673, PETRI_PLACES=424, PETRI_TRANSITIONS=540} [2021-10-13 22:46:26,369 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 293 predicate places. [2021-10-13 22:46:26,369 INFO L470 AbstractCegarLoop]: Abstraction has has 424 places, 540 transitions, 9673 flow [2021-10-13 22:46:26,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:26,370 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:46:26,370 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] [2021-10-13 22:46:26,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 22:46:26,370 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:46:26,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:46:26,370 INFO L82 PathProgramCache]: Analyzing trace with hash 663850409, now seen corresponding path program 13 times [2021-10-13 22:46:26,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:46:26,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064107754] [2021-10-13 22:46:26,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:46:26,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:46:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:46:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:46:27,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:46:27,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064107754] [2021-10-13 22:46:27,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064107754] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:46:27,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:46:27,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:46:27,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310559078] [2021-10-13 22:46:27,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:46:27,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:46:27,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:46:27,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:46:27,150 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:46:27,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 540 transitions, 9673 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:27,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:46:27,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:46:27,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:46:34,029 INFO L129 PetriNetUnfolder]: 6211/15760 cut-off events. [2021-10-13 22:46:34,029 INFO L130 PetriNetUnfolder]: For 138134/138466 co-relation queries the response was YES. [2021-10-13 22:46:34,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70267 conditions, 15760 events. 6211/15760 cut-off events. For 138134/138466 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 165567 event pairs, 1637 based on Foata normal form. 52/15504 useless extension candidates. Maximal degree in co-relation 70128. Up to 6773 conditions per place. [2021-10-13 22:46:34,218 INFO L132 encePairwiseOnDemand]: 115/141 looper letters, 591 selfloop transitions, 157 changer transitions 0/791 dead transitions. [2021-10-13 22:46:34,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 791 transitions, 14503 flow [2021-10-13 22:46:34,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 22:46:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-10-13 22:46:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1697 transitions. [2021-10-13 22:46:34,220 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.46290234588106927 [2021-10-13 22:46:34,221 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1697 transitions. [2021-10-13 22:46:34,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1697 transitions. [2021-10-13 22:46:34,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:46:34,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1697 transitions. [2021-10-13 22:46:34,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 65.26923076923077) internal successors, (1697), 26 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:34,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 141.0) internal successors, (3807), 27 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:34,227 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 141.0) internal successors, (3807), 27 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:34,227 INFO L186 Difference]: Start difference. First operand has 424 places, 540 transitions, 9673 flow. Second operand 26 states and 1697 transitions. [2021-10-13 22:46:34,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 791 transitions, 14503 flow [2021-10-13 22:46:35,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 791 transitions, 14046 flow, removed 56 selfloop flow, removed 16 redundant places. [2021-10-13 22:46:35,555 INFO L242 Difference]: Finished difference. Result has 441 places, 558 transitions, 10114 flow [2021-10-13 22:46:35,555 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=9228, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10114, PETRI_PLACES=441, PETRI_TRANSITIONS=558} [2021-10-13 22:46:35,556 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 310 predicate places. [2021-10-13 22:46:35,556 INFO L470 AbstractCegarLoop]: Abstraction has has 441 places, 558 transitions, 10114 flow [2021-10-13 22:46:35,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:35,556 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:46:35,556 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] [2021-10-13 22:46:35,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 22:46:35,557 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:46:35,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:46:35,557 INFO L82 PathProgramCache]: Analyzing trace with hash 98854087, now seen corresponding path program 14 times [2021-10-13 22:46:35,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:46:35,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272429169] [2021-10-13 22:46:35,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:46:35,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:46:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:46:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:46:36,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:46:36,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272429169] [2021-10-13 22:46:36,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272429169] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:46:36,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:46:36,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:46:36,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191750453] [2021-10-13 22:46:36,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:46:36,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:46:36,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:46:36,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:46:36,346 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:46:36,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 558 transitions, 10114 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:36,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:46:36,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:46:36,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:46:43,346 INFO L129 PetriNetUnfolder]: 6209/15768 cut-off events. [2021-10-13 22:46:43,346 INFO L130 PetriNetUnfolder]: For 139978/140342 co-relation queries the response was YES. [2021-10-13 22:46:43,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70693 conditions, 15768 events. 6209/15768 cut-off events. For 139978/140342 co-relation queries the response was YES. Maximal size of possible extension queue 755. Compared 165675 event pairs, 1724 based on Foata normal form. 52/15492 useless extension candidates. Maximal degree in co-relation 70547. Up to 6773 conditions per place. [2021-10-13 22:46:43,571 INFO L132 encePairwiseOnDemand]: 115/141 looper letters, 601 selfloop transitions, 162 changer transitions 0/806 dead transitions. [2021-10-13 22:46:43,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 806 transitions, 14924 flow [2021-10-13 22:46:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 22:46:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-10-13 22:46:43,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1697 transitions. [2021-10-13 22:46:43,575 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.46290234588106927 [2021-10-13 22:46:43,575 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1697 transitions. [2021-10-13 22:46:43,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1697 transitions. [2021-10-13 22:46:43,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:46:43,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1697 transitions. [2021-10-13 22:46:43,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 65.26923076923077) internal successors, (1697), 26 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:43,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 141.0) internal successors, (3807), 27 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:43,581 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 141.0) internal successors, (3807), 27 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:43,581 INFO L186 Difference]: Start difference. First operand has 441 places, 558 transitions, 10114 flow. Second operand 26 states and 1697 transitions. [2021-10-13 22:46:43,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 806 transitions, 14924 flow [2021-10-13 22:46:45,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 806 transitions, 14462 flow, removed 61 selfloop flow, removed 15 redundant places. [2021-10-13 22:46:45,066 INFO L242 Difference]: Finished difference. Result has 459 places, 576 transitions, 10553 flow [2021-10-13 22:46:45,066 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=9664, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10553, PETRI_PLACES=459, PETRI_TRANSITIONS=576} [2021-10-13 22:46:45,066 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 328 predicate places. [2021-10-13 22:46:45,066 INFO L470 AbstractCegarLoop]: Abstraction has has 459 places, 576 transitions, 10553 flow [2021-10-13 22:46:45,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:45,067 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:46:45,067 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] [2021-10-13 22:46:45,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 22:46:45,067 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:46:45,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:46:45,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1781959185, now seen corresponding path program 15 times [2021-10-13 22:46:45,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:46:45,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12552158] [2021-10-13 22:46:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:46:45,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:46:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:46:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:46:45,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:46:45,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12552158] [2021-10-13 22:46:45,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12552158] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:46:45,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:46:45,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:46:45,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560257721] [2021-10-13 22:46:45,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:46:45,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:46:45,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:46:45,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:46:45,834 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:46:45,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 576 transitions, 10553 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:45,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:46:45,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:46:45,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:46:52,836 INFO L129 PetriNetUnfolder]: 6207/15957 cut-off events. [2021-10-13 22:46:52,836 INFO L130 PetriNetUnfolder]: For 144746/145050 co-relation queries the response was YES. [2021-10-13 22:46:53,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71323 conditions, 15957 events. 6207/15957 cut-off events. For 144746/145050 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 167666 event pairs, 2243 based on Foata normal form. 38/15648 useless extension candidates. Maximal degree in co-relation 71170. Up to 6773 conditions per place. [2021-10-13 22:46:53,079 INFO L132 encePairwiseOnDemand]: 115/141 looper letters, 598 selfloop transitions, 168 changer transitions 0/809 dead transitions. [2021-10-13 22:46:53,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 809 transitions, 15197 flow [2021-10-13 22:46:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 22:46:53,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-10-13 22:46:53,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1691 transitions. [2021-10-13 22:46:53,081 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.46126568466994 [2021-10-13 22:46:53,082 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1691 transitions. [2021-10-13 22:46:53,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1691 transitions. [2021-10-13 22:46:53,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:46:53,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1691 transitions. [2021-10-13 22:46:53,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 65.03846153846153) internal successors, (1691), 26 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:53,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 141.0) internal successors, (3807), 27 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:53,087 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 141.0) internal successors, (3807), 27 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:53,087 INFO L186 Difference]: Start difference. First operand has 459 places, 576 transitions, 10553 flow. Second operand 26 states and 1691 transitions. [2021-10-13 22:46:53,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 809 transitions, 15197 flow [2021-10-13 22:46:54,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 809 transitions, 14730 flow, removed 65 selfloop flow, removed 14 redundant places. [2021-10-13 22:46:54,697 INFO L242 Difference]: Finished difference. Result has 478 places, 594 transitions, 10998 flow [2021-10-13 22:46:54,698 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=10098, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10998, PETRI_PLACES=478, PETRI_TRANSITIONS=594} [2021-10-13 22:46:54,698 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 347 predicate places. [2021-10-13 22:46:54,698 INFO L470 AbstractCegarLoop]: Abstraction has has 478 places, 594 transitions, 10998 flow [2021-10-13 22:46:54,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:54,699 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:46:54,699 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] [2021-10-13 22:46:54,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 22:46:54,699 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:46:54,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:46:54,700 INFO L82 PathProgramCache]: Analyzing trace with hash -147990741, now seen corresponding path program 16 times [2021-10-13 22:46:54,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:46:54,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136009154] [2021-10-13 22:46:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:46:54,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:46:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:46:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:46:55,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:46:55,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136009154] [2021-10-13 22:46:55,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136009154] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:46:55,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:46:55,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:46:55,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113025482] [2021-10-13 22:46:55,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:46:55,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:46:55,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:46:55,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:46:55,143 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:46:55,144 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 594 transitions, 10998 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:46:55,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:46:55,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:46:55,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:47:00,876 INFO L129 PetriNetUnfolder]: 5471/17285 cut-off events. [2021-10-13 22:47:00,876 INFO L130 PetriNetUnfolder]: For 166575/168024 co-relation queries the response was YES. [2021-10-13 22:47:01,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73250 conditions, 17285 events. 5471/17285 cut-off events. For 166575/168024 co-relation queries the response was YES. Maximal size of possible extension queue 1056. Compared 208925 event pairs, 2159 based on Foata normal form. 440/17157 useless extension candidates. Maximal degree in co-relation 73090. Up to 5290 conditions per place. [2021-10-13 22:47:01,293 INFO L132 encePairwiseOnDemand]: 119/141 looper letters, 532 selfloop transitions, 242 changer transitions 0/884 dead transitions. [2021-10-13 22:47:01,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 884 transitions, 17927 flow [2021-10-13 22:47:01,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:47:01,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-13 22:47:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1441 transitions. [2021-10-13 22:47:01,300 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4866599121918271 [2021-10-13 22:47:01,300 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1441 transitions. [2021-10-13 22:47:01,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1441 transitions. [2021-10-13 22:47:01,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:47:01,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1441 transitions. [2021-10-13 22:47:01,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 68.61904761904762) internal successors, (1441), 21 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:01,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:01,315 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:01,315 INFO L186 Difference]: Start difference. First operand has 478 places, 594 transitions, 10998 flow. Second operand 21 states and 1441 transitions. [2021-10-13 22:47:01,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 884 transitions, 17927 flow [2021-10-13 22:47:03,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 884 transitions, 17260 flow, removed 71 selfloop flow, removed 13 redundant places. [2021-10-13 22:47:03,025 INFO L242 Difference]: Finished difference. Result has 495 places, 684 transitions, 13803 flow [2021-10-13 22:47:03,026 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=10532, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=13803, PETRI_PLACES=495, PETRI_TRANSITIONS=684} [2021-10-13 22:47:03,026 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 364 predicate places. [2021-10-13 22:47:03,026 INFO L470 AbstractCegarLoop]: Abstraction has has 495 places, 684 transitions, 13803 flow [2021-10-13 22:47:03,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:03,027 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:47:03,027 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] [2021-10-13 22:47:03,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 22:47:03,027 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:47:03,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:47:03,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2030094359, now seen corresponding path program 17 times [2021-10-13 22:47:03,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:47:03,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568065745] [2021-10-13 22:47:03,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:47:03,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:47:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:47:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:47:03,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:47:03,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568065745] [2021-10-13 22:47:03,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568065745] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:47:03,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:47:03,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:47:03,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99692346] [2021-10-13 22:47:03,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:47:03,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:47:03,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:47:03,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:47:03,715 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:47:03,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 684 transitions, 13803 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:03,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:47:03,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:47:03,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:47:15,302 INFO L129 PetriNetUnfolder]: 10743/28243 cut-off events. [2021-10-13 22:47:15,303 INFO L130 PetriNetUnfolder]: For 270078/270630 co-relation queries the response was YES. [2021-10-13 22:47:15,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127118 conditions, 28243 events. 10743/28243 cut-off events. For 270078/270630 co-relation queries the response was YES. Maximal size of possible extension queue 1403. Compared 332583 event pairs, 4212 based on Foata normal form. 76/27762 useless extension candidates. Maximal degree in co-relation 126948. Up to 12260 conditions per place. [2021-10-13 22:47:15,899 INFO L132 encePairwiseOnDemand]: 113/141 looper letters, 753 selfloop transitions, 243 changer transitions 0/1039 dead transitions. [2021-10-13 22:47:15,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1039 transitions, 21432 flow [2021-10-13 22:47:15,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 22:47:15,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-13 22:47:15,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1588 transitions. [2021-10-13 22:47:15,901 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.46926713947990545 [2021-10-13 22:47:15,902 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 1588 transitions. [2021-10-13 22:47:15,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 1588 transitions. [2021-10-13 22:47:15,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:47:15,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 1588 transitions. [2021-10-13 22:47:15,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 66.16666666666667) internal successors, (1588), 24 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:15,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 141.0) internal successors, (3525), 25 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:15,906 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 141.0) internal successors, (3525), 25 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:15,906 INFO L186 Difference]: Start difference. First operand has 495 places, 684 transitions, 13803 flow. Second operand 24 states and 1588 transitions. [2021-10-13 22:47:15,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1039 transitions, 21432 flow [2021-10-13 22:47:20,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 1039 transitions, 21128 flow, removed 143 selfloop flow, removed 6 redundant places. [2021-10-13 22:47:20,054 INFO L242 Difference]: Finished difference. Result has 526 places, 757 transitions, 16099 flow [2021-10-13 22:47:20,055 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=13501, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=16099, PETRI_PLACES=526, PETRI_TRANSITIONS=757} [2021-10-13 22:47:20,055 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 395 predicate places. [2021-10-13 22:47:20,055 INFO L470 AbstractCegarLoop]: Abstraction has has 526 places, 757 transitions, 16099 flow [2021-10-13 22:47:20,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:20,055 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:47:20,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:47:20,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 22:47:20,056 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:47:20,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:47:20,056 INFO L82 PathProgramCache]: Analyzing trace with hash -803669923, now seen corresponding path program 18 times [2021-10-13 22:47:20,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:47:20,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608539525] [2021-10-13 22:47:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:47:20,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:47:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:47:20,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:47:20,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:47:20,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608539525] [2021-10-13 22:47:20,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608539525] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:47:20,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:47:20,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:47:20,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030808166] [2021-10-13 22:47:20,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:47:20,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:47:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:47:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:47:20,448 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:47:20,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 757 transitions, 16099 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:20,449 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:47:20,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:47:20,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:47:29,722 INFO L129 PetriNetUnfolder]: 7453/24001 cut-off events. [2021-10-13 22:47:29,722 INFO L130 PetriNetUnfolder]: For 287775/290281 co-relation queries the response was YES. [2021-10-13 22:47:30,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107813 conditions, 24001 events. 7453/24001 cut-off events. For 287775/290281 co-relation queries the response was YES. Maximal size of possible extension queue 1556. Compared 311543 event pairs, 1603 based on Foata normal form. 792/24124 useless extension candidates. Maximal degree in co-relation 107629. Up to 5473 conditions per place. [2021-10-13 22:47:30,285 INFO L132 encePairwiseOnDemand]: 117/141 looper letters, 593 selfloop transitions, 409 changer transitions 0/1126 dead transitions. [2021-10-13 22:47:30,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1126 transitions, 25973 flow [2021-10-13 22:47:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:47:30,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-13 22:47:30,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1451 transitions. [2021-10-13 22:47:30,287 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4900371496116177 [2021-10-13 22:47:30,287 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1451 transitions. [2021-10-13 22:47:30,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1451 transitions. [2021-10-13 22:47:30,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:47:30,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1451 transitions. [2021-10-13 22:47:30,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 69.0952380952381) internal successors, (1451), 21 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:30,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:30,291 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:30,291 INFO L186 Difference]: Start difference. First operand has 526 places, 757 transitions, 16099 flow. Second operand 21 states and 1451 transitions. [2021-10-13 22:47:30,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1126 transitions, 25973 flow [2021-10-13 22:47:33,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 1126 transitions, 25421 flow, removed 263 selfloop flow, removed 7 redundant places. [2021-10-13 22:47:33,376 INFO L242 Difference]: Finished difference. Result has 547 places, 906 transitions, 21270 flow [2021-10-13 22:47:33,377 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15731, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=757, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=21270, PETRI_PLACES=547, PETRI_TRANSITIONS=906} [2021-10-13 22:47:33,377 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 416 predicate places. [2021-10-13 22:47:33,377 INFO L470 AbstractCegarLoop]: Abstraction has has 547 places, 906 transitions, 21270 flow [2021-10-13 22:47:33,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:33,377 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:47:33,377 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] [2021-10-13 22:47:33,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-13 22:47:33,377 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:47:33,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:47:33,378 INFO L82 PathProgramCache]: Analyzing trace with hash -2060245895, now seen corresponding path program 19 times [2021-10-13 22:47:33,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:47:33,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468689838] [2021-10-13 22:47:33,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:47:33,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:47:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:47:34,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:47:34,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:47:34,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468689838] [2021-10-13 22:47:34,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468689838] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:47:34,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:47:34,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:47:34,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457966755] [2021-10-13 22:47:34,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:47:34,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:47:34,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:47:34,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:47:34,115 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:47:34,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 906 transitions, 21270 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:34,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:47:34,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:47:34,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:47:54,036 INFO L129 PetriNetUnfolder]: 14910/40392 cut-off events. [2021-10-13 22:47:54,036 INFO L130 PetriNetUnfolder]: For 500756/501687 co-relation queries the response was YES. [2021-10-13 22:47:55,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196670 conditions, 40392 events. 14910/40392 cut-off events. For 500756/501687 co-relation queries the response was YES. Maximal size of possible extension queue 2222. Compared 514008 event pairs, 5822 based on Foata normal form. 224/39948 useless extension candidates. Maximal degree in co-relation 196477. Up to 15934 conditions per place. [2021-10-13 22:47:55,838 INFO L132 encePairwiseOnDemand]: 114/141 looper letters, 858 selfloop transitions, 360 changer transitions 0/1261 dead transitions. [2021-10-13 22:47:55,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 1261 transitions, 29994 flow [2021-10-13 22:47:55,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 22:47:55,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-13 22:47:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1577 transitions. [2021-10-13 22:47:55,840 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.466016548463357 [2021-10-13 22:47:55,840 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 1577 transitions. [2021-10-13 22:47:55,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 1577 transitions. [2021-10-13 22:47:55,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:47:55,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 1577 transitions. [2021-10-13 22:47:55,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 65.70833333333333) internal successors, (1577), 24 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:55,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 141.0) internal successors, (3525), 25 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:55,843 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 141.0) internal successors, (3525), 25 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:47:55,843 INFO L186 Difference]: Start difference. First operand has 547 places, 906 transitions, 21270 flow. Second operand 24 states and 1577 transitions. [2021-10-13 22:47:55,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 1261 transitions, 29994 flow [2021-10-13 22:48:07,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 1261 transitions, 29723 flow, removed 99 selfloop flow, removed 8 redundant places. [2021-10-13 22:48:07,453 INFO L242 Difference]: Finished difference. Result has 577 places, 993 transitions, 24770 flow [2021-10-13 22:48:07,454 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=21063, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=24770, PETRI_PLACES=577, PETRI_TRANSITIONS=993} [2021-10-13 22:48:07,454 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 446 predicate places. [2021-10-13 22:48:07,454 INFO L470 AbstractCegarLoop]: Abstraction has has 577 places, 993 transitions, 24770 flow [2021-10-13 22:48:07,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:48:07,455 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:48:07,455 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:48:07,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 22:48:07,455 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:48:07,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:48:07,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1023462917, now seen corresponding path program 20 times [2021-10-13 22:48:07,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:48:07,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518591357] [2021-10-13 22:48:07,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:48:07,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:48:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:48:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:48:07,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:48:07,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518591357] [2021-10-13 22:48:07,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518591357] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:48:07,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:48:07,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:48:07,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552745672] [2021-10-13 22:48:07,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:48:07,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:48:07,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:48:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:48:07,933 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2021-10-13 22:48:07,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 993 transitions, 24770 flow. Second operand has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:48:07,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:48:07,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2021-10-13 22:48:07,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-13 22:48:22,021 INFO L129 PetriNetUnfolder]: 9444/31205 cut-off events. [2021-10-13 22:48:22,021 INFO L130 PetriNetUnfolder]: For 460895/463906 co-relation queries the response was YES. [2021-10-13 22:48:23,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148259 conditions, 31205 events. 9444/31205 cut-off events. For 460895/463906 co-relation queries the response was YES. Maximal size of possible extension queue 1985. Compared 423918 event pairs, 5672 based on Foata normal form. 805/30979 useless extension candidates. Maximal degree in co-relation 148051. Up to 15251 conditions per place. [2021-10-13 22:48:23,231 INFO L132 encePairwiseOnDemand]: 119/141 looper letters, 713 selfloop transitions, 388 changer transitions 0/1239 dead transitions. [2021-10-13 22:48:23,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 1239 transitions, 31999 flow [2021-10-13 22:48:23,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:48:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-13 22:48:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1439 transitions. [2021-10-13 22:48:23,234 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.485984464707869 [2021-10-13 22:48:23,234 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1439 transitions. [2021-10-13 22:48:23,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1439 transitions. [2021-10-13 22:48:23,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 22:48:23,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1439 transitions. [2021-10-13 22:48:23,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 68.52380952380952) internal successors, (1439), 21 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:48:23,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:48:23,237 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 141.0) internal successors, (3102), 22 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:48:23,237 INFO L186 Difference]: Start difference. First operand has 577 places, 993 transitions, 24770 flow. Second operand 21 states and 1439 transitions. [2021-10-13 22:48:23,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 1239 transitions, 31999 flow [2021-10-13 22:48:28,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 1239 transitions, 31519 flow, removed 230 selfloop flow, removed 6 redundant places. [2021-10-13 22:48:28,874 INFO L242 Difference]: Finished difference. Result has 602 places, 1060 transitions, 27934 flow [2021-10-13 22:48:28,875 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=24298, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=27934, PETRI_PLACES=602, PETRI_TRANSITIONS=1060} [2021-10-13 22:48:28,875 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 471 predicate places. [2021-10-13 22:48:28,875 INFO L470 AbstractCegarLoop]: Abstraction has has 602 places, 1060 transitions, 27934 flow [2021-10-13 22:48:28,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.47368421052632) internal successors, (1225), 19 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:48:28,875 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-13 22:48:28,875 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] [2021-10-13 22:48:28,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-13 22:48:28,875 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:48:28,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:48:28,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1628966943, now seen corresponding path program 21 times [2021-10-13 22:48:28,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:48:28,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565835153] [2021-10-13 22:48:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:48:28,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:48:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:48:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:48:29,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:48:29,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565835153] [2021-10-13 22:48:29,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565835153] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:48:29,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:48:29,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:48:29,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622515110] [2021-10-13 22:48:29,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:48:29,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:48:29,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:48:29,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:48:29,530 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 141 [2021-10-13 22:48:29,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 1060 transitions, 27934 flow. Second operand has 25 states, 25 states have (on average 59.08) internal successors, (1477), 25 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:48:29,531 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-13 22:48:29,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 141 [2021-10-13 22:48:29,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand