/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 01:26:28,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 01:26:28,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 01:26:28,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 01:26:28,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 01:26:28,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 01:26:28,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 01:26:28,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 01:26:28,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 01:26:28,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 01:26:28,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 01:26:28,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 01:26:28,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 01:26:28,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 01:26:28,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 01:26:28,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 01:26:28,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 01:26:28,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 01:26:28,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 01:26:28,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 01:26:28,520 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 [2021-03-11 01:26:28,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 01:26:28,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 01:26:28,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 01:26:28,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 01:26:28,550 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 01:26:28,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 01:26:28,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 01:26:28,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 01:26:28,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 01:26:28,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 01:26:28,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 01:26:28,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 01:26:28,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 01:26:28,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 01:26:28,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 01:26:28,552 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 01:26:28,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 01:26:28,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 01:26:28,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 01:26:28,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 01:26:28,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 01:26:28,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 01:26:28,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 01:26:28,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 01:26:28,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 01:26:28,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 01:26:28,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 01:26:28,553 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 01:26:28,553 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 01:26:28,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 01:26:28,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 01:26:28,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 01:26:28,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 01:26:28,832 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 01:26:28,832 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 01:26:28,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-11 01:26:28,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a121ae64/8961993eec144986a57e2c71b9d68911/FLAG198272ee2 [2021-03-11 01:26:29,322 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 01:26:29,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-11 01:26:29,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a121ae64/8961993eec144986a57e2c71b9d68911/FLAG198272ee2 [2021-03-11 01:26:29,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a121ae64/8961993eec144986a57e2c71b9d68911 [2021-03-11 01:26:29,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 01:26:29,346 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 01:26:29,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 01:26:29,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 01:26:29,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 01:26:29,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b44feac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29, skipping insertion in model container [2021-03-11 01:26:29,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 01:26:29,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 01:26:29,539 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 01:26:29,642 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-03-11 01:26:29,648 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-03-11 01:26:29,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 01:26:29,657 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 01:26:29,674 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 01:26:29,690 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-03-11 01:26:29,698 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-03-11 01:26:29,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 01:26:29,743 INFO L208 MainTranslator]: Completed translation [2021-03-11 01:26:29,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29 WrapperNode [2021-03-11 01:26:29,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 01:26:29,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 01:26:29,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 01:26:29,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 01:26:29,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 01:26:29,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 01:26:29,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 01:26:29,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 01:26:29,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... [2021-03-11 01:26:29,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 01:26:29,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 01:26:29,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 01:26:29,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 01:26:29,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 01:26:29,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 01:26:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-11 01:26:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-11 01:26:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-11 01:26:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-11 01:26:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 01:26:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 01:26:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 01:26:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 01:26:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 01:26:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 01:26:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 01:26:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 01:26:29,842 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 01:26:30,155 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 01:26:30,155 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-03-11 01:26:30,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 01:26:30 BoogieIcfgContainer [2021-03-11 01:26:30,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 01:26:30,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 01:26:30,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 01:26:30,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 01:26:30,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 01:26:29" (1/3) ... [2021-03-11 01:26:30,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3c5241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 01:26:30, skipping insertion in model container [2021-03-11 01:26:30,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 01:26:29" (2/3) ... [2021-03-11 01:26:30,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c3c5241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 01:26:30, skipping insertion in model container [2021-03-11 01:26:30,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 01:26:30" (3/3) ... [2021-03-11 01:26:30,161 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-03-11 01:26:30,164 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 01:26:30,167 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 01:26:30,168 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 01:26:30,186 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,186 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,187 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,187 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,187 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,187 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,187 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,187 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,188 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,188 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,188 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,189 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,190 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,191 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,193 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,194 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,194 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,195 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,195 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,196 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,196 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,196 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,196 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,213 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,214 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,217 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,220 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,226 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,226 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,226 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,226 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,226 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,226 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,227 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 01:26:30,233 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 01:26:30,244 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-11 01:26:30,261 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 01:26:30,262 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 01:26:30,262 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 01:26:30,262 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 01:26:30,262 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 01:26:30,262 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 01:26:30,262 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 01:26:30,262 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 01:26:30,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 125 transitions, 272 flow [2021-03-11 01:26:30,316 INFO L129 PetriNetUnfolder]: 25/125 cut-off events. [2021-03-11 01:26:30,317 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 01:26:30,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 125 events. 25/125 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 280 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2021-03-11 01:26:30,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 125 transitions, 272 flow [2021-03-11 01:26:30,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 113 transitions, 238 flow [2021-03-11 01:26:30,333 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-03-11 01:26:30,333 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 01:26:30,333 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:30,333 INFO L255 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] [2021-03-11 01:26:30,333 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:30,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:30,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1295543096, now seen corresponding path program 1 times [2021-03-11 01:26:30,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:30,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320167876] [2021-03-11 01:26:30,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:30,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:30,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:30,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320167876] [2021-03-11 01:26:30,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:30,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 01:26:30,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922100922] [2021-03-11 01:26:30,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 01:26:30,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:30,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 01:26:30,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 01:26:30,447 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 125 [2021-03-11 01:26:30,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 113 transitions, 238 flow. Second operand has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,449 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:30,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 125 [2021-03-11 01:26:30,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:30,464 INFO L129 PetriNetUnfolder]: 12/103 cut-off events. [2021-03-11 01:26:30,465 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 01:26:30,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 103 events. 12/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 211 event pairs, 0 based on Foata normal form. 12/101 useless extension candidates. Maximal degree in co-relation 109. Up to 3 conditions per place. [2021-03-11 01:26:30,466 INFO L132 encePairwiseOnDemand]: 113/125 looper letters, 0 selfloop transitions, 0 changer transitions 0/101 dead transitions. [2021-03-11 01:26:30,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 101 transitions, 214 flow [2021-03-11 01:26:30,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 01:26:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-11 01:26:30,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 238 transitions. [2021-03-11 01:26:30,473 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.952 [2021-03-11 01:26:30,473 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 238 transitions. [2021-03-11 01:26:30,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 238 transitions. [2021-03-11 01:26:30,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:30,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 238 transitions. [2021-03-11 01:26:30,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,480 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,481 INFO L185 Difference]: Start difference. First operand has 95 places, 113 transitions, 238 flow. Second operand 2 states and 238 transitions. [2021-03-11 01:26:30,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 101 transitions, 214 flow [2021-03-11 01:26:30,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 101 transitions, 206 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 01:26:30,485 INFO L241 Difference]: Finished difference. Result has 92 places, 101 transitions, 206 flow [2021-03-11 01:26:30,486 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=206, PETRI_PLACES=92, PETRI_TRANSITIONS=101} [2021-03-11 01:26:30,487 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, -3 predicate places. [2021-03-11 01:26:30,487 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 101 transitions, 206 flow [2021-03-11 01:26:30,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,487 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:30,487 INFO L255 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] [2021-03-11 01:26:30,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 01:26:30,487 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:30,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:30,488 INFO L82 PathProgramCache]: Analyzing trace with hash -607380885, now seen corresponding path program 1 times [2021-03-11 01:26:30,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:30,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504555074] [2021-03-11 01:26:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:30,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:30,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:30,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:30,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504555074] [2021-03-11 01:26:30,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:30,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 01:26:30,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635126730] [2021-03-11 01:26:30,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 01:26:30,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:30,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 01:26:30,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 01:26:30,534 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 125 [2021-03-11 01:26:30,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 101 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:30,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 125 [2021-03-11 01:26:30,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:30,571 INFO L129 PetriNetUnfolder]: 19/163 cut-off events. [2021-03-11 01:26:30,571 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 01:26:30,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 163 events. 19/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 524 event pairs, 2 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 193. Up to 18 conditions per place. [2021-03-11 01:26:30,573 INFO L132 encePairwiseOnDemand]: 120/125 looper letters, 7 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2021-03-11 01:26:30,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 104 transitions, 232 flow [2021-03-11 01:26:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 01:26:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 01:26:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2021-03-11 01:26:30,576 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.88 [2021-03-11 01:26:30,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2021-03-11 01:26:30,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2021-03-11 01:26:30,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:30,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2021-03-11 01:26:30,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,579 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,579 INFO L185 Difference]: Start difference. First operand has 92 places, 101 transitions, 206 flow. Second operand 3 states and 330 transitions. [2021-03-11 01:26:30,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 104 transitions, 232 flow [2021-03-11 01:26:30,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 104 transitions, 232 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 01:26:30,581 INFO L241 Difference]: Finished difference. Result has 96 places, 102 transitions, 226 flow [2021-03-11 01:26:30,581 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=96, PETRI_TRANSITIONS=102} [2021-03-11 01:26:30,581 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, 1 predicate places. [2021-03-11 01:26:30,582 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 102 transitions, 226 flow [2021-03-11 01:26:30,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,582 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:30,582 INFO L255 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] [2021-03-11 01:26:30,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 01:26:30,582 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:30,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:30,583 INFO L82 PathProgramCache]: Analyzing trace with hash 508238652, now seen corresponding path program 1 times [2021-03-11 01:26:30,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:30,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290969898] [2021-03-11 01:26:30,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:30,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:30,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 01:26:30,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:30,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:30,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290969898] [2021-03-11 01:26:30,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:30,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 01:26:30,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954703022] [2021-03-11 01:26:30,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 01:26:30,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:30,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 01:26:30,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 01:26:30,625 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 125 [2021-03-11 01:26:30,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 102 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:30,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 125 [2021-03-11 01:26:30,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:30,662 INFO L129 PetriNetUnfolder]: 14/145 cut-off events. [2021-03-11 01:26:30,663 INFO L130 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2021-03-11 01:26:30,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 145 events. 14/145 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 412 event pairs, 2 based on Foata normal form. 6/137 useless extension candidates. Maximal degree in co-relation 185. Up to 11 conditions per place. [2021-03-11 01:26:30,664 INFO L132 encePairwiseOnDemand]: 121/125 looper letters, 6 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2021-03-11 01:26:30,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 102 transitions, 242 flow [2021-03-11 01:26:30,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 01:26:30,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 01:26:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2021-03-11 01:26:30,671 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8746666666666667 [2021-03-11 01:26:30,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2021-03-11 01:26:30,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2021-03-11 01:26:30,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:30,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2021-03-11 01:26:30,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,675 INFO L185 Difference]: Start difference. First operand has 96 places, 102 transitions, 226 flow. Second operand 3 states and 328 transitions. [2021-03-11 01:26:30,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 102 transitions, 242 flow [2021-03-11 01:26:30,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 102 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 01:26:30,680 INFO L241 Difference]: Finished difference. Result has 97 places, 102 transitions, 230 flow [2021-03-11 01:26:30,680 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=97, PETRI_TRANSITIONS=102} [2021-03-11 01:26:30,680 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, 2 predicate places. [2021-03-11 01:26:30,680 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 102 transitions, 230 flow [2021-03-11 01:26:30,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,680 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:30,681 INFO L255 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] [2021-03-11 01:26:30,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 01:26:30,681 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:30,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1726244437, now seen corresponding path program 1 times [2021-03-11 01:26:30,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:30,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251071812] [2021-03-11 01:26:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:30,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:30,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:30,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:30,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:30,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251071812] [2021-03-11 01:26:30,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:30,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 01:26:30,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546904582] [2021-03-11 01:26:30,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 01:26:30,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:30,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 01:26:30,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 01:26:30,764 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 125 [2021-03-11 01:26:30,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 102 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:30,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 125 [2021-03-11 01:26:30,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:30,977 INFO L129 PetriNetUnfolder]: 396/1150 cut-off events. [2021-03-11 01:26:30,977 INFO L130 PetriNetUnfolder]: For 59/60 co-relation queries the response was YES. [2021-03-11 01:26:30,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1826 conditions, 1150 events. 396/1150 cut-off events. For 59/60 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7569 event pairs, 43 based on Foata normal form. 0/991 useless extension candidates. Maximal degree in co-relation 1820. Up to 259 conditions per place. [2021-03-11 01:26:30,985 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 45 selfloop transitions, 5 changer transitions 24/150 dead transitions. [2021-03-11 01:26:30,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 474 flow [2021-03-11 01:26:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 01:26:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 01:26:30,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 517 transitions. [2021-03-11 01:26:30,986 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8272 [2021-03-11 01:26:30,987 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 517 transitions. [2021-03-11 01:26:30,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 517 transitions. [2021-03-11 01:26:30,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:30,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 517 transitions. [2021-03-11 01:26:30,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,989 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,990 INFO L185 Difference]: Start difference. First operand has 97 places, 102 transitions, 230 flow. Second operand 5 states and 517 transitions. [2021-03-11 01:26:30,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 474 flow [2021-03-11 01:26:30,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 150 transitions, 472 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 01:26:30,996 INFO L241 Difference]: Finished difference. Result has 104 places, 107 transitions, 304 flow [2021-03-11 01:26:30,996 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=304, PETRI_PLACES=104, PETRI_TRANSITIONS=107} [2021-03-11 01:26:30,998 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, 9 predicate places. [2021-03-11 01:26:30,998 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 107 transitions, 304 flow [2021-03-11 01:26:30,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:30,998 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:30,999 INFO L255 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] [2021-03-11 01:26:31,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 01:26:31,003 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:31,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1245588333, now seen corresponding path program 2 times [2021-03-11 01:26:31,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:31,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816820127] [2021-03-11 01:26:31,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:31,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:31,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:31,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:31,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:31,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816820127] [2021-03-11 01:26:31,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:31,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 01:26:31,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061223293] [2021-03-11 01:26:31,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 01:26:31,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:31,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 01:26:31,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 01:26:31,049 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 125 [2021-03-11 01:26:31,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 107 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:31,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 125 [2021-03-11 01:26:31,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:31,249 INFO L129 PetriNetUnfolder]: 355/1672 cut-off events. [2021-03-11 01:26:31,249 INFO L130 PetriNetUnfolder]: For 229/238 co-relation queries the response was YES. [2021-03-11 01:26:31,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2533 conditions, 1672 events. 355/1672 cut-off events. For 229/238 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 13619 event pairs, 31 based on Foata normal form. 1/1445 useless extension candidates. Maximal degree in co-relation 2524. Up to 183 conditions per place. [2021-03-11 01:26:31,274 INFO L132 encePairwiseOnDemand]: 121/125 looper letters, 17 selfloop transitions, 6 changer transitions 0/122 dead transitions. [2021-03-11 01:26:31,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 122 transitions, 380 flow [2021-03-11 01:26:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 01:26:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 01:26:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 549 transitions. [2021-03-11 01:26:31,275 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8784 [2021-03-11 01:26:31,275 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 549 transitions. [2021-03-11 01:26:31,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 549 transitions. [2021-03-11 01:26:31,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:31,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 549 transitions. [2021-03-11 01:26:31,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,278 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,278 INFO L185 Difference]: Start difference. First operand has 104 places, 107 transitions, 304 flow. Second operand 5 states and 549 transitions. [2021-03-11 01:26:31,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 122 transitions, 380 flow [2021-03-11 01:26:31,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 122 transitions, 364 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-11 01:26:31,295 INFO L241 Difference]: Finished difference. Result has 110 places, 113 transitions, 338 flow [2021-03-11 01:26:31,295 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=338, PETRI_PLACES=110, PETRI_TRANSITIONS=113} [2021-03-11 01:26:31,296 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, 15 predicate places. [2021-03-11 01:26:31,296 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 113 transitions, 338 flow [2021-03-11 01:26:31,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,296 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:31,296 INFO L255 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] [2021-03-11 01:26:31,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 01:26:31,296 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:31,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:31,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1941836083, now seen corresponding path program 3 times [2021-03-11 01:26:31,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:31,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593079185] [2021-03-11 01:26:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:31,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:31,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:31,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:31,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:31,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:31,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593079185] [2021-03-11 01:26:31,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:31,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 01:26:31,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354261785] [2021-03-11 01:26:31,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 01:26:31,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:31,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 01:26:31,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 01:26:31,359 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 125 [2021-03-11 01:26:31,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 113 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:31,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 125 [2021-03-11 01:26:31,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:31,762 INFO L129 PetriNetUnfolder]: 1019/3435 cut-off events. [2021-03-11 01:26:31,762 INFO L130 PetriNetUnfolder]: For 1311/1352 co-relation queries the response was YES. [2021-03-11 01:26:31,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6808 conditions, 3435 events. 1019/3435 cut-off events. For 1311/1352 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 29813 event pairs, 129 based on Foata normal form. 20/3134 useless extension candidates. Maximal degree in co-relation 6796. Up to 821 conditions per place. [2021-03-11 01:26:31,779 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 51 selfloop transitions, 6 changer transitions 23/162 dead transitions. [2021-03-11 01:26:31,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 162 transitions, 637 flow [2021-03-11 01:26:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 01:26:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 01:26:31,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 518 transitions. [2021-03-11 01:26:31,781 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8288 [2021-03-11 01:26:31,781 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 518 transitions. [2021-03-11 01:26:31,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 518 transitions. [2021-03-11 01:26:31,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:31,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 518 transitions. [2021-03-11 01:26:31,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,784 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,784 INFO L185 Difference]: Start difference. First operand has 110 places, 113 transitions, 338 flow. Second operand 5 states and 518 transitions. [2021-03-11 01:26:31,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 162 transitions, 637 flow [2021-03-11 01:26:31,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 162 transitions, 637 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 01:26:31,789 INFO L241 Difference]: Finished difference. Result has 118 places, 116 transitions, 414 flow [2021-03-11 01:26:31,790 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=414, PETRI_PLACES=118, PETRI_TRANSITIONS=116} [2021-03-11 01:26:31,790 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, 23 predicate places. [2021-03-11 01:26:31,790 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 116 transitions, 414 flow [2021-03-11 01:26:31,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,790 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:31,790 INFO L255 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] [2021-03-11 01:26:31,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 01:26:31,791 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:31,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:31,791 INFO L82 PathProgramCache]: Analyzing trace with hash 292315869, now seen corresponding path program 4 times [2021-03-11 01:26:31,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:31,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999296165] [2021-03-11 01:26:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:31,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:31,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:31,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:31,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:31,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:31,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999296165] [2021-03-11 01:26:31,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:31,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 01:26:31,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583443629] [2021-03-11 01:26:31,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 01:26:31,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:31,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 01:26:31,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 01:26:31,841 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 125 [2021-03-11 01:26:31,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 116 transitions, 414 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:31,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:31,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 125 [2021-03-11 01:26:31,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:32,116 INFO L129 PetriNetUnfolder]: 591/3034 cut-off events. [2021-03-11 01:26:32,116 INFO L130 PetriNetUnfolder]: For 1657/1708 co-relation queries the response was YES. [2021-03-11 01:26:32,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5964 conditions, 3034 events. 591/3034 cut-off events. For 1657/1708 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 27261 event pairs, 46 based on Foata normal form. 20/2937 useless extension candidates. Maximal degree in co-relation 5948. Up to 442 conditions per place. [2021-03-11 01:26:32,134 INFO L132 encePairwiseOnDemand]: 121/125 looper letters, 23 selfloop transitions, 11 changer transitions 0/136 dead transitions. [2021-03-11 01:26:32,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 136 transitions, 575 flow [2021-03-11 01:26:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 01:26:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 01:26:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 550 transitions. [2021-03-11 01:26:32,136 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.88 [2021-03-11 01:26:32,136 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 550 transitions. [2021-03-11 01:26:32,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 550 transitions. [2021-03-11 01:26:32,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:32,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 550 transitions. [2021-03-11 01:26:32,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,138 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,138 INFO L185 Difference]: Start difference. First operand has 118 places, 116 transitions, 414 flow. Second operand 5 states and 550 transitions. [2021-03-11 01:26:32,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 136 transitions, 575 flow [2021-03-11 01:26:32,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 136 transitions, 555 flow, removed 10 selfloop flow, removed 1 redundant places. [2021-03-11 01:26:32,144 INFO L241 Difference]: Finished difference. Result has 124 places, 124 transitions, 488 flow [2021-03-11 01:26:32,144 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=488, PETRI_PLACES=124, PETRI_TRANSITIONS=124} [2021-03-11 01:26:32,144 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, 29 predicate places. [2021-03-11 01:26:32,144 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 124 transitions, 488 flow [2021-03-11 01:26:32,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,146 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:32,146 INFO L255 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] [2021-03-11 01:26:32,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 01:26:32,146 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:32,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:32,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1484815531, now seen corresponding path program 1 times [2021-03-11 01:26:32,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:32,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533956263] [2021-03-11 01:26:32,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:32,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:32,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:32,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:32,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:32,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:32,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 01:26:32,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:32,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:32,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:32,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533956263] [2021-03-11 01:26:32,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:32,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 01:26:32,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715236313] [2021-03-11 01:26:32,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 01:26:32,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:32,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 01:26:32,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 01:26:32,178 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 125 [2021-03-11 01:26:32,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 124 transitions, 488 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:32,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 125 [2021-03-11 01:26:32,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:32,385 INFO L129 PetriNetUnfolder]: 568/2891 cut-off events. [2021-03-11 01:26:32,385 INFO L130 PetriNetUnfolder]: For 1118/1143 co-relation queries the response was YES. [2021-03-11 01:26:32,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5466 conditions, 2891 events. 568/2891 cut-off events. For 1118/1143 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 26503 event pairs, 53 based on Foata normal form. 5/2727 useless extension candidates. Maximal degree in co-relation 5447. Up to 400 conditions per place. [2021-03-11 01:26:32,400 INFO L132 encePairwiseOnDemand]: 118/125 looper letters, 12 selfloop transitions, 10 changer transitions 4/138 dead transitions. [2021-03-11 01:26:32,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 564 flow [2021-03-11 01:26:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 01:26:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 01:26:32,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 541 transitions. [2021-03-11 01:26:32,402 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8656 [2021-03-11 01:26:32,402 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 541 transitions. [2021-03-11 01:26:32,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 541 transitions. [2021-03-11 01:26:32,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:32,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 541 transitions. [2021-03-11 01:26:32,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,404 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,404 INFO L185 Difference]: Start difference. First operand has 124 places, 124 transitions, 488 flow. Second operand 5 states and 541 transitions. [2021-03-11 01:26:32,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 564 flow [2021-03-11 01:26:32,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 138 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 01:26:32,410 INFO L241 Difference]: Finished difference. Result has 131 places, 129 transitions, 531 flow [2021-03-11 01:26:32,410 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=531, PETRI_PLACES=131, PETRI_TRANSITIONS=129} [2021-03-11 01:26:32,410 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, 36 predicate places. [2021-03-11 01:26:32,410 INFO L480 AbstractCegarLoop]: Abstraction has has 131 places, 129 transitions, 531 flow [2021-03-11 01:26:32,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,411 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 01:26:32,411 INFO L255 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] [2021-03-11 01:26:32,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 01:26:32,411 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 01:26:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 01:26:32,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1341082818, now seen corresponding path program 1 times [2021-03-11 01:26:32,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 01:26:32,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011068202] [2021-03-11 01:26:32,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 01:26:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 01:26:32,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:32,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:32,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:32,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 01:26:32,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:32,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 01:26:32,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 01:26:32,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 01:26:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 01:26:32,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011068202] [2021-03-11 01:26:32,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 01:26:32,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 01:26:32,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096626840] [2021-03-11 01:26:32,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 01:26:32,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 01:26:32,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 01:26:32,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 01:26:32,442 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 125 [2021-03-11 01:26:32,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 129 transitions, 531 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 01:26:32,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 125 [2021-03-11 01:26:32,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 01:26:32,612 INFO L129 PetriNetUnfolder]: 514/2577 cut-off events. [2021-03-11 01:26:32,613 INFO L130 PetriNetUnfolder]: For 1018/1041 co-relation queries the response was YES. [2021-03-11 01:26:32,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5234 conditions, 2577 events. 514/2577 cut-off events. For 1018/1041 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 22700 event pairs, 43 based on Foata normal form. 7/2444 useless extension candidates. Maximal degree in co-relation 5211. Up to 322 conditions per place. [2021-03-11 01:26:32,625 INFO L132 encePairwiseOnDemand]: 118/125 looper letters, 0 selfloop transitions, 0 changer transitions 140/140 dead transitions. [2021-03-11 01:26:32,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 140 transitions, 600 flow [2021-03-11 01:26:32,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 01:26:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 01:26:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-03-11 01:26:32,627 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8672 [2021-03-11 01:26:32,627 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-03-11 01:26:32,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-03-11 01:26:32,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 01:26:32,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-03-11 01:26:32,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,629 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,629 INFO L185 Difference]: Start difference. First operand has 131 places, 129 transitions, 531 flow. Second operand 5 states and 542 transitions. [2021-03-11 01:26:32,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 140 transitions, 600 flow [2021-03-11 01:26:32,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 140 transitions, 582 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-11 01:26:32,637 INFO L241 Difference]: Finished difference. Result has 130 places, 0 transitions, 0 flow [2021-03-11 01:26:32,637 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=130, PETRI_TRANSITIONS=0} [2021-03-11 01:26:32,637 INFO L335 CegarLoopForPetriNet]: 95 programPoint places, 35 predicate places. [2021-03-11 01:26:32,637 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 0 transitions, 0 flow [2021-03-11 01:26:32,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 01:26:32,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 01:26:32,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 01:26:32 BasicIcfg [2021-03-11 01:26:32,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 01:26:32,644 INFO L168 Benchmark]: Toolchain (without parser) took 3298.88 ms. Allocated memory was 255.9 MB in the beginning and 474.0 MB in the end (delta: 218.1 MB). Free memory was 234.8 MB in the beginning and 234.7 MB in the end (delta: 41.2 kB). Peak memory consumption was 216.6 MB. Max. memory is 16.0 GB. [2021-03-11 01:26:32,645 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory was 237.7 MB in the beginning and 237.5 MB in the end (delta: 160.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 01:26:32,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.64 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.2 MB in the beginning and 327.4 MB in the end (delta: -93.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 01:26:32,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.82 ms. Allocated memory is still 364.9 MB. Free memory was 327.4 MB in the beginning and 325.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 01:26:32,646 INFO L168 Benchmark]: Boogie Preprocessor took 18.84 ms. Allocated memory is still 364.9 MB. Free memory was 325.3 MB in the beginning and 324.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 01:26:32,647 INFO L168 Benchmark]: RCFGBuilder took 370.98 ms. Allocated memory is still 364.9 MB. Free memory was 324.0 MB in the beginning and 297.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-11 01:26:32,648 INFO L168 Benchmark]: TraceAbstraction took 2484.14 ms. Allocated memory was 364.9 MB in the beginning and 474.0 MB in the end (delta: 109.1 MB). Free memory was 296.7 MB in the beginning and 234.7 MB in the end (delta: 62.0 MB). Peak memory consumption was 172.4 MB. Max. memory is 16.0 GB. [2021-03-11 01:26:32,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory was 237.7 MB in the beginning and 237.5 MB in the end (delta: 160.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 395.64 ms. Allocated memory was 255.9 MB in the beginning and 364.9 MB in the end (delta: 109.1 MB). Free memory was 234.2 MB in the beginning and 327.4 MB in the end (delta: -93.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.82 ms. Allocated memory is still 364.9 MB. Free memory was 327.4 MB in the beginning and 325.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.84 ms. Allocated memory is still 364.9 MB. Free memory was 325.3 MB in the beginning and 324.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 370.98 ms. Allocated memory is still 364.9 MB. Free memory was 324.0 MB in the beginning and 297.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2484.14 ms. Allocated memory was 364.9 MB in the beginning and 474.0 MB in the end (delta: 109.1 MB). Free memory was 296.7 MB in the beginning and 234.7 MB in the end (delta: 62.0 MB). Peak memory consumption was 172.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2378.5ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1809.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 62.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 147 SDtfs, 121 SDslu, 72 SDs, 0 SdLazy, 277 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 180.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=531occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.3ms SsaConstructionTime, 74.9ms SatisfiabilityAnalysisTime, 259.9ms InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 359 ConstructedInterpolants, 0 QuantifiedInterpolants, 479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...